Macroalgae are large species of algae often referred to as seaweeds. When not attached to bottom sediments, they are commonly called drift algae. Macroalgae come in colors of red, green, brown and black, and they randomly wash up on beaches and shorelines just about everywhere.
Macroalgae are different from seagrasses and other common plants such as grasses, shrubs and trees. These more complex plants have vascular tissues to transport water and nutrients throughout the plant (much like veins and arteries transport blood in humans). Macroalgae lack these vascular tissues. Instead water, and nutrients are absorbed directly across their surfaces. Vascular plants also have true roots, stems and leaves, which macroalgae do not have (although some have evolved structures that are similar).
Macroalgae, like all plants, photosynthesize. That is, they convert the energy in sunlight into usable chemical energy, specifically carbohydrates such as sugars. The carbohydrates are stored in or used by the plant, and eventually transferred to other organisms when the plant is consumed or decays.
Chemically reactive pigments are the key to how plants capture the energy of sunlight for photosynthesis. However, since each pigment reacts with only a narrow range of the spectrum, there is usually a need for plants to produce several kinds of pigments, each of a different color. This allows them to capture more of the sun’s energy.
Macroalgae are typically classified into three broad groupings — green, red, and brown algae.. Brown algae gets its color from the brown to olive-colored pigment fucoxanthin (FEW-koh-zan-thin). Red algae get their color from phycoerythrin (FIE-koh-era-thrin). Bright green is from chlorophyll. But to keep things confusing — because all things in nature are confusing — red algae can appear light green to brown, green algae can appear yellow, brown algae can appear … well, you get the picture! You can’t judge an alga by its color alone, even though the major groups are named for the colors we expect them to be.
The macroalgae we experience most frequently in Charlotte Harbor are red algae. Their phycoerythrins absorb blue light and reflect red light. The blue wavelengths of sunlight penetrate deeper into the water, making it possible for red algae to carry out photosynthesis in deep or dark waters. Common red algae types found in the Harbor include Gracilaria, Hypnea and Acanthophora. All of these are similar in appearance.
Less common in the Harbor, but most abundant worldwide, are green algae. In Charlotte Harbor the green algae typically seen include Ulva and Caulerpa. Ulva, also known as sea lettuce, contains many species. Some look much like pieces of plastic wrap. Others are stringy and super slimy when they begin to decay. Caulerpa is an attached alga that is either feathery or straplike and looks like it could be a seagrass.
The brown algae species I see most frequently is Sargassum. Most Sargassum species are planktonic, meaning they drift in the water column, but the one I frequently see in the Harbor is attached. At times, Sargassum is locally abundant south of Alligator Creek and near the mouth of the Caloosahatchee River. Sargassum can be identified by small berry-like bladders that are filled with gas and help with buoyancy. Floating Sargassum can become a real nuisance when it washes up on beaches. This problem is particularly bad seasonally on the east coast of Florida, where large rafts pile up, decay and smell really bad. Of course, this stinky mess is also full of life, so scraping it off leads to an overall less healthy beach.
In many coastal waters, macroalgae abundance has increased in recent decades due to nutrient enrichment. Studies indicate that nitrogen is generally the nutrient that seems to control macroalgae growth rates throughout the year. However, phosphorus alone — or, at certain times of the year, both nitrogen and phosphorus together — can also have an effect. To complicate this, different species of macroalgae can be limited by nitrogen or by phosphorus in the same estuary.
I periodically receive phone calls and emails from boaters or anglers who are concerned that macroalgae abundance is on the rise in Charlotte Harbor. There are certainly seasonal patterns that give rise to more macroalgae, particularly in the winter and early spring. Whether we are experiencing an increasing trend or seasonal patterns is unclear, but it’s something that will need to be studied and possibly addressed in the future.
Comments:
January 30, 2022
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October 5, 2021
Hi Patrick... Thanks for your questions. I do not have a pic, but basically would look like streaks of milky water. Scientist confirm spawns by pulling a very fine mesh net and looking for eggs under the microscope. Regarding your second question, snook are considered a saltwater fish regardless of where they are fished, so saltwater rules apply including seasons, bag limits, size and saltwater fishing license with snook endorsement. See this blog on fishing license rules: http://blogs.ifas.ufl.edu/charlotteco/2016/11/01/staying-legal-with-florida-fishing-license-rules/
October 5, 2021
Hi Patrick... Thanks for your questions. I do not have a pic, but basically would look like streaks of milky water. Scientist confirm spawns by pulling a very fine mesh net and looking for eggs under the microscope. Regarding your second question, snook are considered a saltwater fish regardless of where they are fished, so saltwater rules apply including seasons, bag limits, size and saltwater fishing license with snook endorsement. See this blog on fishing license rules: http://blogs.ifas.ufl.edu/charlotteco/2016/11/01/staying-legal-with-florida-fishing-license-rules/
October 4, 2021
Can you send a pic of a spawning snook? If fishing in freshwater and catching freshwater snook, is there a season on harvesting freshwater snook?
October 4, 2021
Can you send a pic of a spawning snook? If fishing in freshwater and catching freshwater snook, is there a season on harvesting freshwater snook?
June 1, 2021
Hi Don... Snook season has been closed during peak spawning months (May through August) for many years. It would have been a long time ago when you could cut open a spawning snook during the peak months. So I suspect you are not seeing it because snook season is closed during most of the spawning season. Research scientists often find female snook loaded with eggs during the spawning seasons. Females will typically be a little larger than males and those fish caught closer to the Gulf passes will be more likely to have developed gonads.
June 1, 2021
Hi Don... Snook season has been closed during peak spawning months (May through August) for many years. It would have been a long time ago when you could cut open a spawning snook during the peak months. So I suspect you are not seeing it because snook season is closed during most of the spawning season. Research scientists often find female snook loaded with eggs during the spawning seasons. Females will typically be a little larger than males and those fish caught closer to the Gulf passes will be more likely to have developed gonads.
June 1, 2021
Hi Justin... Snook need at least 28 parts/thousand salinity (80% strength of ocean salinity) in order to successfully spawn. Sperm gets activated at these salt levels and the eggs become buoyant. According to snook scientist Dave Blewett, snook that choose to skip spawning and spend their summer in a freshwater river on in the low salinity brackish waters of the bay will not even gear up at all physically for spawning. Both males and females remain dormant and don't even try to spawn in these habitats. Most spawning along the Gulf coast, occurs near the passes in SWFL from May thru October, but locations can expand depending on the salinity levels within a given estuary during any given year.
June 1, 2021
Hi Justin... Snook need at least 28 parts/thousand salinity (80% strength of ocean salinity) in order to successfully spawn. Sperm gets activated at these salt levels and the eggs become buoyant. According to snook scientist Dave Blewett, snook that choose to skip spawning and spend their summer in a freshwater river on in the low salinity brackish waters of the bay will not even gear up at all physically for spawning. Both males and females remain dormant and don't even try to spawn in these habitats. Most spawning along the Gulf coast, occurs near the passes in SWFL from May thru October, but locations can expand depending on the salinity levels within a given estuary during any given year.
June 1, 2021
Have never caught a mature snook during spawning season with eggs in tact. Could you comment on why this is occurring? Have caught well over 200 plus fish over the years during this time and have never encountered any eggs.
June 1, 2021
Have never caught a mature snook during spawning season with eggs in tact. Could you comment on why this is occurring? Have caught well over 200 plus fish over the years during this time and have never encountered any eggs.
April 7, 2021
Can snook reproduce in fresh water and still be fine? I've been told it can't happen. Can anyone help me please.
April 7, 2021
Can snook reproduce in fresh water and still be fine? I've been told it can't happen. Can anyone help me please.
March 30, 2021
Hi Loretta... because most algae do not produce toxins, this would generally not be a concern. The scummy ness seen, often times is composed of diatoms, which are rarely toxic. However if there were a toxic algal bloom of the red tide forming Karenia brevis (a dinoflagellate), and the cells became aerosolized when forced to the surface, it could result in respiratory irritation... but aerosolized is key... meaning the toxin needs to attach to the water vapor/salt spray. Since Langmuir Circulation tends to occur under windy conditions this could happen, but it would be the wind, not the rotating water of Langmuir Circulation that results in aerosolization, and risk would be no different than under normal windy conditions.
March 30, 2021
Hi Jillian... the closure is related to the prolonged 2017-2019 red tide. I don't work on the regulatory side so can't speak to why Pasco was included, but I understand the closure was in response to angler concern and fisheries data. That said, FWC is currently seeking angler input regarding the red tide closure of snook, redfish and spotted seatrout via virtual workshops to be held in early April (5, 6 & 8, with the 8th focused on the Tampa Bay area). Your question might be answered during the workshop. See link for details: https://myfwc.com/fishing/saltwater/rulemaking/workshops/
March 30, 2021
Hi Jillian... the closure is related to the prolonged 2017-2019 red tide. I don't work on the regulatory side so can't speak to why Pasco was included, but I understand the closure was in response to angler concern and fisheries data. That said, FWC is currently seeking angler input regarding the red tide closure of snook, redfish and spotted seatrout via virtual workshops to be held in early April (5, 6 & 8, with the 8th focused on the Tampa Bay area). Your question might be answered during the workshop. See link for details: https://myfwc.com/fishing/saltwater/rulemaking/workshops/
March 29, 2021
Wonderful article. So informative. May I ask for clarification of the localization of Red Tide? Pasco and Hernando had very little, if any tide detected, even in the most devastating season.
March 29, 2021
Wonderful article. So informative. May I ask for clarification of the localization of Red Tide? Pasco and Hernando had very little, if any tide detected, even in the most devastating season.
March 21, 2021
I live on the Intracoastal Waterway and have seen this for the first time all day today! Could this be harmful in any way if walking along side the Waterway & breathing the wind that’s blowing & causing it from algae etc?!
January 21, 2021
Hi Andy... Yes of course. I will email mail you directly.
January 21, 2021
Great article, Betty. Having participated in the Scallop Search in Sarasota Bay many times, I was shocked to see virtually every sea grass bed covered in macroalgae. And not a scallop in sight, despite over a hundred thousand of the community's dollars over several years. Wonder if the physical structure of the macroalgae impeded the scallops' development or viability? I am in Punta Gorda, email below, and starting a Peace+Myakka Waterkeeper group here. I wonder if you could reach out to me via email and we can talk? Best, Andy
August 21, 2020
Hi Anthony... Good question and it depends. Snook on the east coast of Florida tend to move around a lot whereas snook on the west coast tend to have a natal estuary. Some work in the Peace River showed that migrations to the river tends to be strongly associated with river levels and prey availability (see https://blogs.ifas.ufl.edu/charlotteco/2018/10/08/the-importance-of-freshwater-to-estuaries/). A couple studies in SWFL have looked at site fidelity in rivers. One in the Shark River (unpublished) suggests between 20-50% return to river (same spot which would be where a receiver was placed) presumably after spawning (data over 4 years). Another in the Caloosahatchee found that snook that do return to the river leave for approximately 3 months (June-August) presumably to spawn before returning. This study did not indicate the percentage that returned but did say the percentage that did not leave (skipped a spawning year) was about 40% (data over 3 years). Best regards... B
August 20, 2020
Do snook return to the same river year after year after spawning example if I caught a 40in fish under a certain bridge what are the chances said fish would return to the same bridge after spawning?
August 7, 2020
Hi Matt... Sorry for the delay. A paper by Ron Taylor says the annual reproductive cycle is confined to that period between the vernal (March) and autumnal (Sept) equinoxes when day length and water temperatures are maximal (he doesn't give a specific water temp. and I haven't seen one, but if I do I'll post back here). Day length probably controls the duration of the annual reproductive cycle, and temperature serves as moderator as in other fishes. The beginning of the spawn correlates strongly with the maximum size of the eggs. As for tides, spawning episodes occur during the late afternoon and early evening hours during all lunar phases and all tidal stages. I'm glad you enjoyed the article!
July 23, 2020
Hello, Great article! What about he effects of water temps and the beginning of the spawn? 75 degrees? Also, is it safe to assume that they will only spawn on an incoming tide? TIA!
June 8, 2020
Hi Dan... no, once transition from male to female occurs, it is permanent.
June 6, 2020
When a snook changes from male to female - do they change back to male?
June 3, 2020
Thank you Ralph! I am always looking for potential problems that can occur to Red Brazilian Cloake. This sometimes can help me figure out what is causing my problems while growing the RBCs! My biggest problem for the last 6-8 months has been a constant deterioration of its beautiful leaves! Almost all the leaves turn yellow and fall off, mostly on the inside of the plant. Other leaves curl up around edges and then turn a crispy brown. Many of the same leaves have random holes in them all over and over time the leaves deteriorate and die completely. My educated guess after doing a lot of reading about problems that can occur with these plants is that caterpillars eat the leaves probably causing nutrient deficiencies that cause all affected leaves to die! I tried many natural remedies to stop this from happening to no avail! I started to use Thuricide on my RBCs and also bogainvelias; it seemed to get better but then the same thing keeps happening over and over again. I am guessing that I must have a bad infestation. I had not seen any of these caterpillars until one night I decided to play detective and went out around 11:00 pm. I did find on huge slimy worm and took him off and got rid of him. As there must be umpteen hundreds of species of caterpillars I don't know if the Thuricide is working and apparently I need to keep spraying the leaves both sides of course to truly get rid of the infestation! I will start doing this regularly but this beautiful plant is really starting to make me think this may not be worth it. The constant reading, researching, experimenting with the many possible causes and then no improvements is Depressing and discouraging! This plant when healthy is truly beautiful and unique! If you have any advice or can recommend how to find a Red Brazilian expert or enthusiast will you please let me know? Thank you ever so much! Kathy Green
April 17, 2020
Awesome plant! I’m growing several voodoo lilies in my backyard. I don’t know species I have. Over the past 3 to 5 years, they were about 5-6 inches tall. But this year each stalk or leaf is almost 5 feet tall. Each leaf produced several flowers (I am assuming they are the the lily-like sheath with one petal that contains a long pencil shaped surrounded with many beads). About a month ago, prior to the rapid and appearing to still be growing, there was a smell I thought was coming from my frequently visiting possums. The stalk is light green with dark green bands. They remind me of giraffe legs only green in color. What’s interesting is that researching this lily, the propagation method included bulbs and other but nothing about airborne. I found another much younger one about 20 feet away in my yard. I would love to know the species. I’m also a new Master Gardener in Miami Dade County.
March 20, 2020
Well said and well done!
February 21, 2020
Dear Gardener, Thank you for your inquiry! No, while cigarette beetles are interested in a wide number of stored food products, they are not a noted pest of honeybee hives and are different than the small hive beetle – please see here- http://entnemdept.ufl.edu/creatures/misc/bees/small_hive_beetle.htm
February 18, 2020
Are these cigarette beetles relative to Hive beetles who love bee hives?
January 13, 2020
Hi Bill... Thank you for your comment. Finger mullet are prey for many different fish species including red fish, bluefish, tarpon, Spanish mackerel, jack crevalle, and snook… so they are vey ecologically important. And certainly if snook find finger mullet at the right size they are going to gorge themselves on them. Finger mullet however tend to have a particular habitat so they are not as big of a driver as pinfish are in the Charlotte Harbor estuary. For snook it's all about prey size and there's much more pinfish and minnow available to them in their preferred size range. This is not the same for all estuaries. In the Indian River estuary for instance, finger mullet are the primary driver. That is much more of a eutrophic system and doesn't support the seagrass that we have here. Because we have much more seagrass habitat, we have much more pinfish and other bait species that depend on seagrass habitats. Hope this help. I am glad you enjoyed the post. Betty
January 10, 2020
Thank you for your excellent review of Snook. You mention that a major portion of snook diet is pinfish and minnows as the top tow prey items. I was under the impression that mullet fingerlings were a major prey fish due to their massive numbers in the Charlotte Harbor Estuary. If not, what is the role of mullet in our Estuary.
November 21, 2019
Dear Gardener, Thank you for your inquiry! I am assuming you are taking about Podocarpus. We would need a positive identification of the problem before recommending any remedy. Decline such as this in Podocarpus can have several causes. How long did it take from the start of these symptoms until now? One issue could have been too much water. Does this site drain well, or was there any standing water during the summer? Once established, Pododcarpus are medium in drought-tolerant, but like well-drained soil. If it is not well-drained it could be more susceptible to organisms such as Armillaria Root Rot – please see here - http://gardeningsolutions.ifas.ufl.edu/care/pests-and-diseases/diseases/armillaria-root-rot.html Was there any application of herbicides nearby that might have gone off-target? What is your water source? If the plant are irrigated with well water, Podocarpus have low tolerance to salt. Is there mulch right up to the trunk of each plant? If so, pull it back away from the trunk as this will keep the bark too wet which may encourage cankers to develop. What is the fertilizer application program like? Too much could cause needle burn. Please take a look at these questions and get back to me at your earliest convenience at: ralph.mitchell@charlottecountyfl.gov. All the best, Ralph
November 15, 2019
Thank you for your inquiry! As Brazilian Cloaks have such large leaves, they would tend to act as sails in a breeze. That coupled with somewhat brittle branches, breakage can happen. I have one myself that does do this from time to time. I would recommend placing a number of strategically placed bamboo canes to help support these branches. Breakage also prunes the shrub in a way and makes for plenty of propagating materials! In March, you can begin to prune it to keep it in-bounds and in a manageable shape. All the best, Ralph
November 14, 2019
I planted about 50 5 gallons and noticed about five plants that had a single branch turn brown and dry out. Can I use a copper fungicide or maybe an all natural three-in-one product they sell at HD? I remember a few years back I had a 10ft Podocarpus tree that completely died the same way. I'm thinking maybe fungus?
November 13, 2019
My 4’ beautiful red brazilian cloake has been damaged badly by wind. It couldn’t have been more than 25 mph! Two branches broke and died. Then a week later two more branches were knocked to the ground and leaves wilted. They died also. I read a lot about this plant but saw nothing about having to protect it from strong breezes. I had been doing well in full all day sun until the 25 mph gust destroyed part of it. Have you ever heard of this kind of damage in southwest Florida? I have tied the rest of the branches together in hopes of protecting it from further winds. Is this a good idea or not? Please help! Thanks much!!!
October 30, 2019
Hi Carol... There is red tide currently in the Englewood area. For up to date information here are some good resources. FWC maintains a daily sample map that shows results from the last 8 days of red tide sampling: https://myfwc.maps.arcgis.com/apps/View/index.html?appid=87162eec3eb846218cec711d16462a72 Forecasting tools have been developed that predict respiratory irritation due to red tide blooms: https://tidesandcurrents.noaa.gov/hab/gomx.html and where a bloom may move over the next four days: http://ocgweb.marine.usf.edu/hab_tracking/wfcom_hab.html Mote Marine Lab provides up-to-date information on respiratory irritation and fish kill status from select beaches as part of their Beach Conditions Reporting System. https://visitbeaches.org/
October 28, 2019
My family and I will be staying on Manasota Key the first week in November. Has there been issues with the red tide along those beaches? We are leaving this Saturday. Thank you
October 16, 2019
Such a nice Information There are more species of fish than all the species of amphibians, reptiles, birds and mammals combined. Fish have been on the earth for more than 450 million years.
August 16, 2019
Hi David...without seeing it, I would hesitate to guess.
August 13, 2019
Hello Connie, This factsheet should help you. Florida Vegetable Gardening Guide
August 9, 2019
I live on Marco Island, where during the summer wet season, material rises to the surface in our canals and residents assume this is an algae bloom. Please give me the technical term for this phenomena.
August 9, 2019
Wonderful article! This is a very inspiring article for me. I would love to read more blogs on landscaping that sounds very useful and interesting.
August 2, 2019
Yes indeed. Thank you!
August 2, 2019
We need to make sure to protect these fish and their habitats in nature great article thank you
July 16, 2019
Yes, I have observed that too!
July 16, 2019
Hi Gerard...Yes, they can and in are in some places; however, the eventual goal is to find a way to completely remove the nitrogen and phosphorus from the environment. That is what the research of the University of Maryland is focused on.
July 15, 2019
Why can’t the algae biomass be composted?
July 14, 2019
There seems to be a connection between the white foamy lines and pending rainy weather. I grew up spending every summer at a lake. Every time the white lines show up, my Grandfather would say “rains coming !” This past week we were on vacation at a lake and sure enough, the white lines were present the day before rain was forecasted.
July 7, 2019
I would like to know when to plant vegtable plants like tomatoes,peppers,kale,sweet potatoes, salad greens etc in Port Charlotte, FL I am from N.J.
July 3, 2019
very awesome
June 26, 2019
Hi Ralph, I have been growing everglade tomatoes for about 8 years. One of my garden club friends gave me some seeds. I'm a snowbird so I brought seeds to Massachusetts. They grew like crazy here. Funniest thing is that the seeds overwintered and in the spring the plants popped up everywhere!
June 19, 2019
Hi Steve. I'm glad you enjoyed the article. Yes, the November 2016 article is still correct. The closed season on snook means you can not possess one. You may still target them for catch and release. Thank you for that question! I will reword my blog to make that clearer. Betty
June 19, 2019
Thanks for a great article. By the way, is your Florida fishing laws article of November 1, 2016, still good authority? Does the closed season on snook simply mean that it is catch and release or can one be cited for simply fishing for snook. I note that it is catch and release ion all coastal counties at all times currently.
June 15, 2019
keep sharing
June 12, 2019
Hi Karen...I can help you out with the Charlotte Harbor guides. I believe Sarasota County Parks & Rec. are the contact for guides there. Send me an email: staugler@ufl.edu and we can figure out how to get guides to you.
May 21, 2019
Would like to order muliple copies of A Boating and Angling Guide to Charlotte Harbor and also to Sarasota for my CG Auxiliary Englewood. Please advise how todo that. Thank you
April 22, 2019
Hi John...This is a bit out of my area of expertise so I reached out to others at UF for input. Advantages include that it is organic, high in K, Ca, Mg, Fe, Zn which are very good for plants especially for acidic soils. Disadvantages include high salt especially sodium (Na), low N and P which are essential macronutrients (need a lot) for plants. The nutrients take a lot longer to ‘peak’, when compared to conventional fertilizers. The exact concentrations depend on the algae. There are three ways that seaweed materials could be used as a soil amendment/ fertilizer: 1) directly used as organic mulch or dried powder fertilizer. This approach may not work very well because of the high salt content and very slow of release of nutrients through decomposition. 2) composting. 3) use as additives if mix with other kinds of fertilizers. It should work well if mixing with animal manures. For marine algae, there is also need for a washing process to remove the salts. I hope this is helpful...Betty
April 20, 2019
Thank you for this informative blog! I have noticed this spring that massive amounts of the algae are floating up and clogging the ICW and shallow bays, large dark slimy blobs everywhere. While I'm glad to see it lifting off the grass beds, I'm concerned with the volume we have seen this winter in our bays from Sarasota to Charlotte Harbor, especially upper Lemon Bay area. Recently retired, I fish Monday through Friday weekly inshore in these bays and have noted a lot of the algae. Does this dying algae have any nutritional value such as fertilizer for our gardens, plants and trees? With such volumes drifting now it would be a great resource to utilize in lieu of commercial fertilizers if the value is present.
April 19, 2019
Hi Grace...I suspect you are also seeing Langmuir's circulation. What is visible in the parallel lines is dependent upon what is being pushed to the surface, along with weather and sea conditions.
April 19, 2019
We live on a small long lake, when a strong wind blows from the south, we get parallel lines the length of the lake. they are not foamy, just lighter and smoother than the rest of the water. Any ideas?
April 17, 2019
Some follow-up questions – Is it in the sun or shade? What is the fertilizer program like? Has it been pruned? All the best, Ralph
April 16, 2019
I have a ylang ylang tree over 20 ft but never flowers what can I do to get it to flower
April 15, 2019
Hi Julie...Where cichlids are along the river is really dependent upon salinity. Right now it's pretty salty by the El Jobean bridge. Once the salinity comes down, after we get a little more rain, you should see the cichlids return to your riprap. Cichlids have a pretty wide salinity range but they prefer lower salinities. As such, during the dry months where they can (in areas such as the Myakka River), they tend to migrate upstream where the water is fresher.
April 15, 2019
This is unrelated to the previous discussion, but we would like to get some info on why the cichlids in our canal in Port Charlotte, Charlotte county have disappeared. Previous years we had tons in our riprap along with little sheephead and a variety of small snappers. Our canal empties into the Myakka river, near the the El Jobean bridge. Love to know what happened, and if we can attract them back. If you don't have this info could your point us to who we would contact. Thanks so much for your help.
March 22, 2019
Hi Tony...At this time there is no red tide occurring anywhere in Florida. Of course that could change, but April is generally not a big month for bloom initiation. You can visit this website: https://myfwc.com/research/redtide/statewide/ for weekly updates. I hope you have a great time here in SWFL. Betty
March 22, 2019
Hi Betty, I am coming to Englewood Beach early April from the UK, could tell me if there is still a Red Tide problem along this stretch of water. I know last Summer it was bad in Sarasota so flipped coast lines to Flagler beach on the Atlantic side ... I like to o a spot of fishing so hoping its gone ... Warmest regards, Tony UK
January 2, 2019
Dear Gardener, Thank you for your inquiry! Will heliconia’s survive all the way up in Jacksonville? That is a good question which could probably be answered “yes”, “no”, and it depends. Most varieties would probably be killed by the cold – not only the cold above, but if the soil froze. However, I guess that there could be some micro-climates in areas that might be warm enough to overwinter successfully. I found an article about heliconia’s that could survive in Central Florida – please see here - https://www.leugardens.org/wp-content/uploads/2014/07/HELICONIAS.pdf . I also found a site promoting heliconia (as well as mulch) in Jacksonville – please see here - https://mulchmasters.com/heliconia.php. Here is another publication for your review - http://edis.ifas.ufl.edu/pdffiles/FP/FP24900.pdf. Jacksonville looks likely to be in cold hardiness zone 9 a with an average annual minimum temperature of 20 to 25 degrees F. At this time of year, your heliconia will likely look tattered and worn as we enter the winter months. The rhizomes underground are still alive. If the ground freezes, it is likely that the roots will die. Are there any other heliconia in your neighborhood that are established and doing well year-to-year? If so, this is a good sign. As far as transplanting them now. This probably fine as they are dormant, but the question still exists at whether they are hardy enough? You might try the local Duval County Urban Horticulture Agent, Terry DelValle at delvalle@coj.net to be sure. I hope that this information is helpful to you. All the best, Ralph
December 31, 2018
I live in Jacksonville where we do receive some cold temps. I have 2 Heliconias in 2 large pots on my front porch (direct sun, good drainage). They did great through summer and fall. However, they are now looking very rough with yellowed leaves. Can I transplant them into a flower bed nearby? If so, when is the best time to do this? Do I cut them all the way down to dirt level?
August 21, 2018
Thank you for your inquiry! As a group, I would say that Duranta have low to no salt-tolerance. Salt-tolerance is a relative term – please see our salt-tolerance range fact sheet attached above as a guide. Also, please see here - http://hos.ufl.edu/sites/default/files/faculty/gdliu/Salt-TolerantPlants_FL_Black_03_0.pdf - Salt-Tolerant Plants for Florida, as well as here - http://gardeningsolutions.ifas.ufl.edu/design/landscaping-for-specific-sites/coastal-landscape.html - Coastal Landscapes. Please also see here for Florida-Friendly Landscaping™ and salt tolerance direction - The Florida-Friendly Landscaping™ Guide to Plant Selection & Landscape Design - available on-line at this link - http://fyn.ifas.ufl.edu/pdf/FYN_Plant_Selection_Guide_2015.pdf will give you some more ideas on plant materials. You may want to have your well tested for salt to see what the ppm is reading. I hope that this information will be helpful to you.
August 21, 2018
Are the Duranta scrubs salt tolerant? We have has some salt intrusion in our well used for watering our lawn and don't want to kill any Duranta plants we might purchase. Thank you and GO GATORS
July 12, 2018
Great blog.Thanks for sharing this info. When it is very hot, the fish are coming in search of cooler water. So, this time these fish are available.
May 31, 2018
Cool Thanks
February 4, 2018
Many works have investigated warming and cooling periods, and describe northward advances of species during warm periods or, alternatively, southward contractions during cold periods.
January 31, 2018
North Atlantic fish feed and spawn over a wide range of temperatures from ?2 to 20°C, but most species are within their limits for feeding at 0–4°C, and for spawning at 2–7°C.
January 31, 2018
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