Crop Rotation in the Garden

Crop Rotation in the Garden

A diverse garden attracts pollinators and helps balance soil fertility. Photo by Molly Jameson.

A diverse garden attracts pollinators and helps balance soil fertility. Photo by Molly Jameson.

The kids are back to school and you know what that means – everyone in the house will soon come down with the sniffles and a sore throat. But what if when the kids came home, Jack went straight to his room, Susie to her room, Dad went to work in the garage, and Mom read in the office? This separation – along with good hand washing techniques – may be what prevents the entire house from turning into a sick ward. Since humans are very closely related genetically, we are susceptible to many of the same diseases. Well, believe it or not, plant families operate very similarly. If you keep planting crops together that are in the same plant family, they will be susceptible to the same diseases.

Although it can be challenging to keep your family from getting sick, there are certain practices in the garden that can go a long way in keeping your vegetable plants disease free and healthy. One easy step you can take is implementing a crop rotation. By separating crops that are in the same family during the season and not planting the same plant families in the same locations year after year, you not only help prevent diseases, but it will also help control insects, balance nutrients, and improve the condition of your soil.

Probably the most important reason to use a crop rotation system is to prevent plant diseases. For example, if you grow tomatoes in the same section of your garden year after year, certain pathogens that attack tomatoes, such as some bacterial spots and blights, can overwinter in your garden, and will have an easily accessible host (next year’s tomatoes) the following spring. Tomatoes are in the nightshade family, along with crops such as potatoes, peppers, and eggplants. If these crops are planted in the same location, they then become susceptible to the same pathogens, and the cycle continues.

Turn your garden into a revolving collage. Photo by Molly Jameson.

Turn your garden into a revolving collage. Photo by Molly Jameson.

Many pests in the garden are also attracted to many of the same crops. For instance, the mustard or brassica family, which includes vegetables such as broccoli, kale, collards, and turnips, easily attract aphids. By regularly rotating your brassicas, you can help break the life cycles of these garden pests.

Another important aspect of crop rotation is considering the fertility and health of your soil. Different crops require different types and amounts of nutrients to grow. Legumes, such as peas and beans, actually “fix” nitrogen from the atmosphere, which can increase the nitrogen in your soil, reducing your need to add fertilizers. You would then want to follow legumes with plants that require a lot of nitrogen, such as lettuce or broccoli. Subsequently, follow heavy feeders with light feeding root vegetables, such as onions or carrots, which are good nitrogen “scavengers.”

Root crops also help break up the soil, which is then advantageous to legumes, which thrive in loose soil. Growing leguminous “cover crops,” such as clovers and alfalfa, is an excellent way to improve the fertility and organic matter content of your soil. Incorporate the biomass of the cover crops into your soil prior to seed production for optimum benefits.

Remember that the key to both a healthy garden and a healthy diet is diversity! Incorporating many different botanical families into your garden will help break disease life cycles, attract beneficial insects, effectively utilize soil nutrients, and improve soil composition. In turn, eating many different types of vegetables will ensure that you are getting the full spectrum of vitamins and minerals. Which, by the way, will help keep your family healthy and strong and able to combat those pesky colds!

Saving Seed

Saving Seed

You’ve grown some wonderful vegetables, annuals or perennials and you would like to save some of the seed from those plants to have for planting in the future. This is a great way to get more of the plants you know and love while saving on the expense of new plants. One exception are plants that are F1 hybrids; seeds from these plants will produce crops quite dissimilar to the parent.

First, you need to collect ripe seed from the desired plants. How do you know when the seeds are ripe and ready to harvest? The strategies for annuals/perennials and vegetable plants differ.

The ripe seedhead of a coneflower. Photo credit: Mary Derrick, UF/IFAS Extension.

The ripe seedhead of a coneflower. Photo credit: Mary Derrick, UF/IFAS Extension.

For annuals and perennials that flower without making a fruit, wait until the flower has dried up and the seed head is brown and dead-looking. The seeds are then mature and ready to harvest. Take a look at the photo of the coneflower seedhead for reference. These seeds are already dry and can be put into an envelope and then into a sealed jar or plastic stage bag that contains a desiccant to absorb any excess moisture. There are a few options for desiccants: the little packets that come in vitamin bottles and purses to keep them dry, cornmeal or dried milk in bottom of the bag. Be sure to label your envelope with the date and name of your plant seeds. Store in the refrigerator.

When you are saving seed from a vegetable that has seeds inside it such as a tomato, pepper or squash, harvest the vegetable when it is ripe and ready to eat and scoop out the seeds and wash away all other plant parts from the seed. These seeds are very moist and if stored in this state, they will rot into a mess. You want to get the moisture content below about 8% for long term storage. There are several methods:

  • If the humidity is low and the temperature high, (I know, those can be rare conditions for Florida) you can put the seeds in a single layer on a baking sheet in the shade to let them dry all day.
  • Another option is to take that baking sheet with a single layer of seeds and put it in a 100° oven for 6 hours with the door open. It’s crucial to monitor your oven temperatures as those above 100° will kill the seeds.

Once the seeds are dried sufficiently, store them as described above for flower seeds. Your seeds can then last for several years.

For more information:

Seed Saving from Colorado State Extension

Saving Vegetable Seeds from University of Minnesota Extension

 

Composting Made Easy

Composting Made Easy

vermicompost layer mcj

Red wigglers hanging through the bottom bin of a “Worm Factory” vermicompost system. Photo by Molly Jameson.

What if I told you there was a way to create compost indoors? No pitchfork required, no hot steamy temperatures, a simple mix of ingredients, and it would fit right under your kitchen sink? As long as you can convince your family to have worms in the house… you can start vermicomposting.

Vermicomposting uses a type of worm called red wigglers. These worms specialize in digesting organic matter, can digest their own body weight in food each day, and can double their population within months. It is, therefore, a wonderful way to responsibly dispose of food waste and can reduce your garbage by more than a third. Microorganisms inside the worms are actually doing most of the work, and the “castings” excreted are teaming with beneficial microbes and nutrients that will condition your soil and make the plants in your garden shine.

You can easily construct a vermicompost bin at home, but you can also purchase one online. Bins should hold about five gallons for one to two people or ten gallons for three to four (Rubbermaid containers work nicely). Your container should not exceed 12 inches in depth, as red wigglers do not like to burrow deeply. You will also want good aeration, so drill holes in the bottom of the bin and either place the bin in another container or put the bin on bricks and use a tray underneath to capture escaped materials. Either way, you will want a lid – as worms do not like light and need moisture – but they also need to breathe, so make sure it is not airtight. Be sure your bin is never in direct sunlight or in a location that regularly exceeds 80°F.

To get started, you will need about 1,000 worms, which weighs about one pound. Red wigglers can also be purchased online, at local nurseries, and some bait shops. Better yet – if you know vermicompost enthusiasts, they may be happy to share.

Before you purchase your worms, you want to prepare your worm bedding. Shredded newspaper and coconut fiber (coir) – which you can find at your local nursery – work great. You will also need to add a small scoop of garden soil to inoculate your bin with microbes. To get started, lightly moisten your bedding material and fill your bin about two-thirds full.

vermicompost hand mcj

Finished worm castings will be dark, slightly moist, and will have an earthy smell. Photo by Molly Jameson.

Now it is time to add the food. Worms love vegetable scraps, most fruits, moldy bread, coffee filters and grounds, tea bags, and crushed eggshells. Chop their food into small pieces for fastest consumption. Foods to avoid include meat, dairy, large amount of citrus, and onion peels. Start out slow, and put the chopped food in the corner of your worm bin. Once your worms are settled, maintain the bin as half bedding, half food scraps. If your bin looks too dry, add more food. If your bin looks too wet, add more bedding or hold back on food a few days. Bad odors will develop only if the worms are overfed.

Give your worm bin about three to four months, and then you can begin to harvest. Add a handful of castings to potting mix or a thin layer directly to your garden. Give vermicomposting a try – your plants will thank you, your trash will not stink, and you will reduce your global impact.

 

Time to Start a Fall Garden

Time to Start a Fall Garden

broccoli

Broccoli, a popular winter vegetable. Photo by Mary Derrick, UF IFAS

As the days get shorter and temperatures decrease, it is time install your cool season vegetable garden. Many vegetables can be grown in Florida, but it is important to understand what the climatic requirements are for each crop to have the most success.

To get the most of your garden space know the recommended months for planting and the turnaround time for harvest so that you can stagger plantings or change out crops as needed.

September is the ideal time to plant cabbage, beets, kale, lettuce, mustard greens, onions, and radishes. After the New Year some options include eggplant, potatoes, English peas, and turnips.

Many gardeners start their tomatoes and peppers as early as February, but they are frost sensitive and early planting carries some risk of cold damage.

If you are interested in learning more about fall vegetable gardening, join the UF/IFAS Bay County Master Gardeners on Friday, September 18th for a free vegetable gardening workshop. This class will be held at the Bay County Extension Office at 2728 E. 14th Street in Panama City. To register please call 850-784-6105 or email bay@ifas.ufl.edu. Fall-VegMG2015

For more information and a full chart of what to plant when see Florida Vegetable Gardening Guide.

 

Growing Shiitake Mushrooms on Logs

Growing Shiitake Mushrooms on Logs

Shiitake Mushroom

A shiitake mushroom growing on a log. Credit: Clay Olson, UF/IFAS Extension – Taylor County

Mushrooms are an excellent low calorie food with a high fullness factor (they fill you up).  But the “common” or “button” mushroom lacks natural flavor.  On the other hand, shiitake mushrooms have all the benefits of button mushrooms, but offer a flavor punch and a higher fiber content.  However, they are a bit more expensive.  Wouldn’t it be great if you could grow mushrooms in the home garden?  Growing mushrooms may be easier than you think.

Mushrooms are fungi that grow on rotting organic matter.  Shiitake mushrooms are best grown on hardwood logs.  Oak logs are generally used for a mushroom food source, but sweetgum, red maple, and poplar can also be used.  Logs ranging from a diameter of 2” to 7” and 3’ to 4’ long are recommended.  Once the logs have been cut to size, the fungus inoculation process can begin.  Holes are drilled into the log and the spawn are inserted.  Spawn is a fancy name for the mixture of mushroom roots (mycelium) and a growing substrate (usually made up of compacted sawdust or a wooden dowel).  The plugged holes are sealed with wax.  The inoculated logs should be placed in a cool, moist, well ventilated place.  It can take anywhere from 6 to 18 months for the mycelium to inhabit the logs.  This process is called “spawn run” or “incubation”.  Mushrooms grow best within a temperature range of 50-70°F, so the fruiting process is a spring or fall event.

Capping Spawn Plugs

Capping the spawn plugs. Credit: Clay Olson, UF/IFAS Extension – Taylor County

The recommended mushroom strains for Florida are:  CS-41; CS-15; CS-24; CS-125; CS-16; CS-11; and CS-118.  Favorable conditions are strain-specific, so please do some research before purchasing strains.  A list of supply dealers can be found at the North American Mycological Society webpage.

Mushroom production is a fun activity, but it is extremely labor intensive.  This article is just a brief summary of process.  For more information on producing your own mushrooms, please visit the UF/IFAS Small Farms Mushroom Production webpage.  Mushroom production is not a recommended business venture for Florida, but can be a fun hobby.

 

Build Your Own Floating Hydroponic Garden

Build Your Own Floating Hydroponic Garden

Building a floating hydroponic garden as a fall project could be rewarding and delicious. In the fall, lettuce, cabbage and greens are ideal for floating hydroponic gardens.

Watch a video by UF / IFAS Extension Agents to learn how to construct your own floating hydroponic garden by clicking on the picture below.

 

The publication, Building a Floating Hydroponic Garden, is also available for those interested in more information.