Edible Gardening Series: Question of the Week – trellises, plastic mulch, and other products

By Sarah Bostick and Carol Wyatt-Evens

Gardening in Florida can be incredibly rewarding and incredibly frustrating, at the same time. If you are new to the region, you soon learn that gardening in the Sunshine State can quickly become a full-time job. While our subtropical climate is perfect for growing an abundance of different vegetables, fruits, and herbs, it also can present some overwhelming challenges.

We can help! UF/IFAS Extension Sarasota County agents and staff have created an online edible gardening resource center. The website features short videos from our 25-episode “Edible Gardening Series” webinars, along with blog posts and resources lists for episodes. Get help on an array of topics that befuddle many gardeners.


This week’s Question of the Week is:
Tomato-growing aids: trellises, plastic mulch, and other products


We are doing our blog posts a little differently this week! Rather than focusing in on one topic, we are answering all of the questions asked our Tomato 101 class in a series of four themed blogs. Here is a Q&A for the “Tomato-growing aids” theme:

Q: Do red plastic mulch or wraps really help with tomatoes?

A: To a large extent, the verdict is still out on whether or not red plastic mulch helps tomatoes ripen more quickly. In addition to red plastic mulch, there are many other colors of plastic mulch, all of which have been designed for a different set of growing conditions. If you would like to learn more about different colors of mulch, the University of Connecticut has a handy resource.


Q: For taller tomatoes, I wire-tie two larger size tomato cages together, and sometimes add a stake for extra stability. Do you have other recommendations for DIY tomato support structures?

Tomatoes growing vertically in the rain
Tomatoes are better able to resist disease and dry off quickly after rain showers when they are trellised. Photo credit: Anh Ngo Hoang (Pixabay)

A: There are countless creative ways to provide support for your tomatoes. Although we often talk about tomato “vines”, tomatoes are not vines – they are large sprawling plants that do not have the ability to hold on to structures. To keep tomatoes healthy and disease-free, it is important to keep tomatoes from sprawling on the ground. To do that, we have to create structures to support their vertical growth. You will need to either create some sort of cage or tie the plant to a structure.

This website is home to 53 creative tomato trellising ideas complete with photos, descriptions, and cost estimates. One of the most inexpensive and widely used techniques used in the farming world is called the Florida weave! Read all about it and 52 other techniques.

Q: What do you think of using a “halo” at the base of the plant?

A: There are a LOT of products on the market geared towards helping home gardeners grow the perfect tomato. The best way to figure out if a product works for you is to give it a try. There is very little university research into the effectiveness of most types of tomato-growing aids. If you are interested in doing some of your own research, here are some key words to use in your internet search: “tomato halo”, “tomato ring”, “tomato collar” and “tomato blanket”. Some of these products are designed to increase the heat around your tomato plant – just remember that this is not always a good thing if you live in a hot region of the country!


Q: Is a calcium spray sprayed on tomato fruit really helpful to keep “blossom end rot” from happening?

A: Blossom end rot looks like a terrible disease in tomatoes, but the good news is that it isn’t! It is a physiological disorder in tomatoes, not a disease. It is caused by insufficient calcium in the plant. If you frequently have tomatoes that show the tell-tale signs of blossom end rot, it is time to do a soil test to figure out how to restore sufficient calcium to your soil. You can help a plant experiencing calcium deficiencies make it through the season by using a calcium spray on the leaves. There are various calcium spray products on the market. Follow the instructions on the bottle label closely.


For answers to more common tomato questions, click on the links below:


The Edible Gardening Series and blog series is a partnership between the following UF/IFAS agents and Sarasota County staff:

  • Sarah Bostick, Sustainable Agriculture Agent
  • Carol Wyatt-Evens, Chemicals in the Environment Agent
  • Mindy Hanak, Community & School Gardens Educator
  • Kevin O’Horan, Communications Associate

Posted: February 11, 2021

Category: Work & Life
Tags: Ag, Agriculture, Edible Gardening QOTW, EdibleGardeningSeries, Food, Garden, Horticulture, Pgm_Ag, Pgm_Chemicals, Pgm_Gardens, Seedlings, Tomatoes, Trellis

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