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The Dirt on Compost: Hot and Worm Composting at Home

The Dirt on Compost: Hot and Worm Composting at Home

Wooden compost bin partially filled with leaves and yard waste under banana trees.

A simple wooden bin provides airflow and space for layering “browns” and “greens” to create balanced compost at home. Photo by Molly Jameson.

 

The Dirt on Compost: Hot and Worm Composting at Home

Every week, many of us dump spoiled food or leftovers into the trash and haul yard waste to the curb, not realizing that all of that organic material could be turned into something incredibly useful. Composting is the answer. It’s a simple, natural process that transforms food scraps and yard debris into a rich soil amendment that feeds your plants and improves soil health.

Several large outdoor compost piles releasing steam during decomposition.

Microbial activity generates heat as organic matter breaks down, causing visible steam to rise from active thermophilic compost piles on cool mornings. Photo by Turkey Hill Farm.

There are two main ways to compost at home: thermophilic (hot) composting and vermicomposting (composting with worms).

Thermophilic composting is the classic backyard method that relies on heat-loving microbes to break down organic material. With the right mix of “browns” (carbon-rich materials like dried leaves, cardboard, and straw) and “greens” (nitrogen-rich materials like vegetable scraps, coffee grounds, and grass clippings), the pile heats up to between 130–160°F. This high heat speeds up decomposition and kills weed seeds and harmful pathogens. Turn the pile occasionally and keep it moist, and in a few months, you’ll have dark, earthy compost ready to mix into your garden beds.

Hot Composting Fun Facts

  • Food scraps and yard waste make up nearly 30% of what we throw away, most of which could be composted instead.
  • Microbes in a hot compost pile can double their population every 20–30 minutes under the right conditions.
  • A compost pile needs at least one cubic yard (3x3x3 feet) of material to build enough mass to heat up properly.
  • Steam rising from a compost pile on a chilly morning isn’t smoke – it’s water vapor from microbial activity.

    Open vermicompost bin showing red worms in dark, moist compost.

    Red wiggler earthworms transform food scraps into nutrient-rich worm castings. Photo by Leon County.

Vermicomposting is a little different – and a bit squirmier. This method uses red wiggler earthworms (Eisenia fetida) to process kitchen scraps into a fine, nutrient-rich material called worm castings. Earthworm bins can be kept indoors or outside in a shaded area, making them a great option for those with limited space. It’s clean, odor-free when managed properly, and a surprisingly fun way to recycle your food waste.

Worm Composting Fun Facts

  • Red wigglers can eat up to half their body weight in food scraps each day.
  • Worms breathe through their skin and need moist bedding to survive and stay active.
  • Worm castings contain five times more nitrogen and seven times more phosphorus than average topsoil.
  • Worm castings contain beneficial microbes that help suppress certain plant diseases in soil.

    Hands holding dark, crumbly vermicompost.

    Finished vermicompost is dark, crumbly, and nutrient-rich – the result of red wigglers breaking down organic waste. Photo by John Edwards.

Both methods keep organic material out of the landfill, reduce methane emissions, and build healthier soil – something every gardener can appreciate.

If you’d like to learn even more about composting and hear additional fun facts about how nature recycles, join UF/IFAS Extension Agents Mark Tancig and Molly Jameson for The Dirt on Compost: Hot & Worm Composting at Home on Wednesday, November 12, from 6:00 to 8:00 p.m. at the Leon County Extension Office (615 East Paul Russell Road).

Register on Eventbrite: https://UFIFASLeonCompostingFall2025.eventbrite.com

This free workshop will explore the science behind composting and provide practical tips for both hot composting and worm composting systems.

2025 Gardening in the Panhandle LIVE! Webinars Begin March 6th

2025 Gardening in the Panhandle LIVE! Webinars Begin March 6th

Gardening in the Panhandle LIVE! is launching Season 6 with new topics starting on March 6, 2025! Each episode is delivered live on Zoom Webinar then posted to our YouTube Playlist. If you would like to join us live and help drive the panel discussion, be sure to click on the title below to register and submit your questions a few days prior to air date.

March 6, 2025 Foodscaping in North Florida Learn how to incorporate edible plants into your landscape.  Whether your goal is a large vegetable garden or one tree with edible fruit, we can help you find ways to make your landscape a source of fresh food!
April 10, 2025 Freeze Friendly Foliage Plants Are you trying to create a tropical look in your North Florida yard but frustrated with freeze damage? Let us teach you what plants can offer lush foliage and withstand cold weather!
May 22, 2025 Pests of Florida Lawns and Landscape Plants Not only people love Florida’s climate, but many plant pests thrive here, too. Learn how to identify and manage landscape pests using Florida-Friendly Landscaping practices.
August 21, 2025 Great Southeast Pollinator Census – Bee a Citizen Scientist! We all know the importance of pollinators, but how can you help to support them? Join us to learn how to attract, identify, and count for the 2025 Great Southeast Pollinator Count!
September 11, 2025 How to Care for Houseplants Growing houseplants can be tricky since our indoor climate is very different from outdoors. Learn how to help your houseplants thrive while keeping your home comfortable!
October 9, 2025 Bulbs for North Florida Flowering bulbs can create dramatic impact in the landscape, but some have specific requirements that might not fit our climate and soil conditions. Learn how to select the right ones for your North Florida landscape!

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Orchard Crops Diversification Field Day – October 23

Orchard Crops Diversification Field Day – October 23

Please join UF/IFAS Extension for the Orchard Crop Diversification Field Day, on Wednesday, October 23rd.  This event will be held from 8:30 – 11:30AM Eastern Time, at the UF/IFAS North Florida Research & Education Center (NFREC), located at 155 Research Road, Quincy, Florida.

Muscadine grapes growing on a vine. UF/IFAS Photo.

This is a free event aimed at educating commercial farmers, home gardeners, landowners, and industry representatives about some of the potential crop diversification options for North Florida orchards, such as persimmon, blueberry, finger lime, muscadine, pecan, and citrus. Crop diversification is the practice of growing a variety of crops to enhance sustainability, improve soil health, increase biodiversity, and mitigate risks. While there are potential benefits to crop diversification, there are also potential challenges. The field day aims to present attendees with the potential benefits, challenges, and current research associated with the crop options presented.

Attendees will be able to visit the persimmon, pecan, and blackberry plantings at UF/IFAS North Florida Research & Education Center in Quincy. On the tour, attendees will have the opportunity to learn about production practices as well as sample the different persimmon varieties. Light refreshments and lunch will be provided. Space is limited, so please register using the link below or by calling 850-875-7255 to reserve your spot!

To register: https://OrchardCropsFieldDay2024.eventbrite.com

Discover the Joy of Fall Gardening: Online Guide and Backyard Series

Discover the Joy of Fall Gardening: Online Guide and Backyard Series

Fall is just around the corner, and that means it is time to start kale and collards, root vegetables, and salad greens. Photo by Rachel Mathes.
Fall is just around the corner, and that means it is time to start kale and collards, root vegetables, and salad greens. Photo by Rachel Mathes.

In spite of this record-breaking hot summer, it might be surprising to realize that we are just a month away from the onset of fall. As the sun-soaked dog days gradually relinquish their hold to the inviting coolness of autumn, the allure of the new season comes into view.

If your thoughts are already conjuring images of vibrant leaves and the anticipation of robust greens and earthy root vegetables in your garden, we extend an invitation to explore our newly revamped edition of the North Florida Vegetable Gardening Guide.

We’ve transformed the guide from a static PDF into a user-friendly website, making it easier than ever for you to tap into its wealth of gardening insights. Crafted by the adept hands of the UF/IFAS Leon County Extension, this guide serves as an invaluable resource catering to both seasoned horticulturists and aspiring gardeners.

Dive into an array of articles, planting schedules, images, and informative UF/IFAS EDIS publications – all thoughtfully designed to address your gardening questions. From the basics of getting started to the finer points of site selection, pest management, fostering biodiversity, soil testing, composting, harnessing cover crops, and mastering irrigation techniques – the North Florida Vegetable Gardening Guide website has it all covered.

Access the North Florida Vegetable Gardening Guide website by clicking here.

For those who prefer a tactile experience, physical copies are available upon request at the UF/IFAS Leon County Extension Office, located at 615 Paul Russell Rd., Tallahassee, FL 32301. A quick call ahead will help you ensure availability.

We’re also excited to announce our upcoming Fall 2023 Backyard Gardening Series, set for September 6 and 13, from 6:00 to 8:00 p.m. on both evenings at the Leon County Extension Office (615 Paul Russell Road).

If you’re eager to explore the art of fall gardening in depth, this series will cover topics like site selection, soil enrichment, effective fall planting techniques, and more, including a hands-on planting activity.

To reserve your spot in the series, please register on Eventbrite, by clicking here (https://fallbackyardgardeningseries2023.eventbrite.com).

Individual tickets are available for $10 per person if pre-paid online or $15 in cash or check at the door. For families of three to four, pre-paid online family tickets are $20 per family or $30 in cash or check at the door. This registration fee includes both evenings on September 6 and 13 and light refreshments will be provided.

For any further inquiries, please contact Molly Jameson at mjameson@ufl.edu or via phone at 850-606-5200.

Gardening in the Panhandle LIVE! Program Summary: Small Scale Vegetable Gardening

Gardening in the Panhandle LIVE! Program Summary: Small Scale Vegetable Gardening

a mix of vegetable plants
A mixed vegetable garden. Photo Credit: eXtension.org.

It doesn’t get much better than eating fresh vegetables out of your own garden. I guess you could add a beverage to the mix to improve the experience. A dry chenin blanc would probably go well. Unfortunately, this month’s Gardening in the Panhandle LIVE steered clear of wine as a topic, but the featured agents did focus on vegetables.

Container Gardening

Size does matter when it comes to container gardening. Think about the full grown size of the plants you plan to grow when selecting a container size. For most vegetables, 10 inches wide by 10 inches deep is sufficient, but you can grow in much larger containers. The larger the container, the more room the roots will have. For more information on gardening in containers, check out the articles “Don’t Think You Have a Green Thumb? Try Container Gardening!” and “Container Gardens for Outdoor Spaces”.

If you have a really deep container and don’t want to spend the money on potting soil to fill it up, then you’re kind of out of luck. Rocks or other materials placed in the bottom of containers will create a perched water table. So basically, you’re creating a shallower container by putting materials other than potting mix in the bottom. The physics on this topic is better explained in “Rocks in Pots: Drainage or Perched Water Table Problems?”.

It’s best to start with new potting soil each year. Especially if you plan to grow the same plant species/families in the same containers. However, if you do plan to reuse potting soil, make sure to mix it up a bit with a trowel or dump it out and put it back in the container or another container. Also, choose a different crop than what you grew in the soil the previous year. Here’s an interesting publication on growing squash in recycled potting soil.

Raised Beds

Raised beds are a great option if you live in an area with poorly drained soil or with a soil that doesn’t hold nutrients. They also can be built on legs like a table to save your back some stress. More information on build a raised bed can be found in the article “Building Raised Beds”.

Vegetables need space to grow whether they’re planted in the ground, in a small container, or in a raised bed. Recommended varieties for container gardening and spacing recommendations can be found in this container gardening fact sheet from UF/IFAS Extension in Leon County.

Who says you can’t landscape with vegetable plants and fruit trees? Vegetables such as cabbage and kale can add a depth of color and texture to your annual flower beds. And blueberry bushes and citrus trees have beautiful blooms that bees love.

Trellises can be easily built and attached to raised bed gardens. Pole beans and Malabar spinach are just a couple examples of vegetables that need something to climb on. Lettuce and other small vegetables can be grown vertically in different hydroponic systems.

Plant Selection

Some seeds can be sown directly into the garden while others should be started in trays and transplanted. More information on sowing seeds and timing can be found in the Vegetable Gardening Guide. Just make sure to check out the tables at the end of the guide.

Some plants are more tolerant of salt air and salt water. This doesn’t mean you can water these plants with the Gulf of America, but they will tolerate a little bit of salt. A list of salt tolerant vegetables can be found in “Salt Tolerant Vegetable Gardening”.

The North Florida Gardening Calendar provides a month-by-month list on what to grow when.

A number of cherry tomato varieties produce a big crop fast and over a long period of time. A list of recommended cherry tomato varieties can be found in this article on cherry tomatoes.

Pole beans can be planted as early as February in the panhandle. More information on pole beans and other legumes can be found in the Legume Production Chapter of the Vegetable Production Handbook of Florida.

There aren’t a lot of options for perennial vegetables in North Florida. A perennial vegetable that can be grown here, taro, can be invasive. If you plan to grow this vegetable, please consider growing it in a container. Fortunately, we have a lot of options for perennial fruiting crops. More information on growing fruit trees can be found in the publication Dooryard Fruit Varieties.

Blackberries grow well in North Florida. You may want to try the thornless varieties ‘Freedom’, ‘Traveler’, ‘Osage’, and ‘Ouachita’. More information on growing blackberries can be found in the publication “The Blackberry”.

Some vegetables grow well in the shade. The “Veggies and Herbs Made in the Shade” publication includes a list of shade loving vegetables and herbs along with growing tips.

Community gardens provide a place to garden for people that may not have space at home. Gardening in these plots also gives people a place to meet their neighbors. Information on starting a community garden can found in the publication “Starting a Community Garden”.

Homegrown beets don’t taste anything like the ones your grandmother gave you out of a can. More information on growing beets and other root crops can be found in the Root Crop Chapter of the Vegetable Production Handbook of Florida.

Research has shown that kids are more likely to eat vegetables that they grow. The publication “Why is Exposure to Nature Important in Early Childhood?” provides more information on this subject.

Pest Management

Vine borers and leaf footed bugs are some of the most damaging pests to a vegetable garden. Planting early in the season can help avoid these pests, but if you’re too late on planting then you might want to give some natural products a try. The publication “Natural Products for Managing Landscape and Garden Pests in Florida” provides some good pointers on controlling these and other insect pests.

Squirrels and other wildlife can also be pests in the garden. Deterrents can help keep these pests out of the garden.

Tomatoes are disease prone. Good air circulation and crop rotation can keep some diseases under control. Pruning tomatoes can help improve air circulation. Other control methods are outlined in these Tomato Disease Publications.

Ants don’t usually mess with your vegetables, but they can be a nuisance when working in the garden. Fire ant management information can be found in the publication “Managing Imported Fire Ants in Urban Areas”.

Squash and other cucurbits don’t last long in wet areas. They don’t last long on the vine in the first place. Growing on plastic mulch, or even pine straw, can help these vegetables stay dry. You may also want to consider building a trellis for vining cucurbits. Also, make sure to harvest in a timely manner. Squash that overripen on the vine attract insect and disease pests and just don’t taste very good.

Weeds can compete for nutrients with your crops and don’t look very attractive in the garden (or anywhere). If you’re tired of hand weeding, the Vegetable Production Handbook of Florida lists herbicide options by crop.

Past episodes of Gardening in the Panhandle LIVE can be found on our YouTube playlist.

Join Us August 7 for the 2021 Leon County Seed Library Virtual Workshop

Join Us August 7 for the 2021 Leon County Seed Library Virtual Workshop

Join us via Zoom on Saturday, August 7, for our Leon County Seed Library Virtual Workshop. Graphic by Molly Jameson.

Join us via Zoom on Saturday, August 7, for our Leon County Seed Library Virtual Workshop. Graphic by Molly Jameson.

Join Us August 7 for the 2021 Leon County Seed Library Virtual Workshop

Planting vegetable seeds and growing a garden is a great way to get outdoors and appreciate nature. Since 2015, the Leon County Public Library has supported gardeners in Leon County by providing vegetable seed packets for patrons to take home and plant in their gardens.

To kick off the Fall 2021 Seed Library, agents with UF/IFAS Leon County Extension are hosting the Leon County Seed Library Virtual Workshop on Saturday, August 7, from 10:00 a.m. to 12:00 p.m. via Zoom.

During the virtual workshop, Extension agents will discuss planting seeds, growing vegetables, and how to incorporate veggies into healthy meals and snacks. The workshop coincides with the first day the seeds in the Fall 2021 Seed Library will become available. Residents of Leon County can check out three sample seed packets per month with their library cards from all Leon County library branches.

Even if you are not a resident of Leon County, everyone is welcome to join us at the virtual workshop. Along with the gardening portion of the workshop, there will also be a live virtual cooking demonstration featuring vegetables available in the Fall 2021 Seed Library Program.

For more information about the Leon County Seed Library Virtual Workshop, please visit our Eventbrite page: https://seedlibraryworkshop2021.eventbrite.com. There is no cost to attend the workshop, but registration is required.

If you are a resident of Leon County, all you need is your Leon County library card to check out the vegetable seeds. Don’t have a library card? No problem! Leon County residents can apply online at the LeRoy Collins Leon County Public Library online card application page here: https://lcpl.ent.sirsi.net/custom/web/registration/.

Here is the list of the vegetable seed varieties that will be available starting August 7: Common Arugula, Waltham 29 Broccoli, Chantenay Red Core Carrots, Michihili Chinese Cabbage, Slo-bolt Cilantro, Alabama Blue Collards, Early White Vienna Kohlrabi, Rocky Top Salad Blend Lettuce, Pink Beauty Radishes, and Tokinashi Turnips.