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Gardeners:  A Critical Link to Protecting Our Water

Gardeners:  A Critical Link to Protecting Our Water

The joy of being outdoors in the yard and gardens is something many of us have the opportunity to receive and appreciate.  Observing nature at its best with the changes of seasons and all the activity, from birds visiting to vegetable and flower gardens to the healthy green lawns there is much to contemplate.  The environment in which we live is complex and ever changing and is a critical source to our quality of life.  One major source that links us all is water and the quality of it moving forward.  How are we addressing changes to this important resource and the unintended consequences that can follow?

How we garden and manage the landscape at home and possibly in a business situation seems small in comparison to the number of settings out there, but if enough people work to improve water quality the positive impacts can be significant.  Impervious surfaces that include paved driveways and walkways are areas that do not allow rain events or irrigation to infiltrate into the soil.  Creative solutions are out there to construct pervious surfaces.  Many acres of forest and wetlands have been lost to development impacting land areas like this to slow water movement allowing time for nutrients and sediment to settle and be absorbed into the soil and taken up by plants or sequestered in organic matter in the soil layers. 

We often think about the larger rivers and big bodies of water that include lakes, bays, gulfs, and oceans that shoulder the large scale of human activity.  It is often the smaller water sources that when combined multiple times as the tributaries involving creeks that lead to larger streams and rivers are often overlooked as having major impacts on water quality.  What we can do to assist is to better manage nutrients (fertilizers and others) involving lawns, trees, and shrubs in your landscape.  Work on improving soil balance through soil testing and following the recommendations to understand your soil types and plants that grow best in these settings.  Contact your local University of Florida Extension office located in your county for information to assist in this important process.

A waterfront buffer zone may include a raised berm with native vegetation to slow runoff from a yard before entering the water. Photo credit: Carrie Stevenson

Creating planting buffers around creeks, ponds and lakes is critical to reducing nutrient entry links to these water sources.  Care must be taken when applying nutrients that include nitrogen and phosphorus to the lawn, gardens, and other landscape areas.  UF/IFAS Extension’s Florida Friendly Landscaping program recommends, if you are broadcasting fertilizer without a deflector shield, The Ring of Responsibility should extend at least 10 feet from the edge of water.  Be aware that fertilizer landing on hard surface driveways and sidewalks are subject to running off with rain events and potentially entering these water sources. 

There is much more information available on this topic and it is highly recommended to do a little research via the smart phone and other ways to better understand the importance of how we address water quality moving forward.  Enjoy the great outdoors and appreciate all it has to offer. 

Unwelcome Guests: Managing Kudzu Bugs in Your Florida Home

Unwelcome Guests: Managing Kudzu Bugs in Your Florida Home

The kudzu bug, an invasive pest, has been a significant concern in soybean cultivation in the southeastern United States since 2009, particularly in Georgia, North Carolina, South Carolina, and Alabama. Beyond its impact on agriculture, the kudzu bug proves to be a nuisance to homeowners and outdoor enthusiasts during both early spring and fall. In the winter months, the kudzu bug becomes inactive and actively seeks overwintering sites in the fall.

Credit: Worrel Diedrick, Florida A&M University.

If you observed a substantial number of small, greenish, round, flattened insects on the exterior walls of your home, there is a likelihood that you, like many others in your community, were visited by the kudzu bug. This relatively new invasive insect from Asia has become an unexpected guest for numerous residents and business owners, as it landed on homes and other structures in search of suitable overwintering sites.

Fortunately, the overwintering flights of the kudzu bug are relatively brief, lasting only a few days in the fall. However, if your residence becomes one of their chosen landing sites and they manage to infiltrate by crawling into cracks and crevices, the issue may escalate to the interior of your dwelling, posing a more significant problem than their presence on the exterior.

Kudzu Bug Habitat

Outdoors, kudzu bugs tend to congregate in gaps under the bark of trees, gaps under the siding of homes, and higher elevations such as fascia boards and gutters on the edges of homes. They are attracted to light-colored surfaces, with a particular fondness for white. Kudzu bugs will congregate on white siding, white cars, or white attire. In early fall, they often gather on light-colored exterior walls before moving into gaps and cracks, seeking shelter and warmth for overwintering.

To mitigate the possibility of infestation, the most effective preventive measure is to seal all openings where kudzu bugs could potentially enter your dwelling using caulk. While insecticides might be considered for control, it’s crucial to note that this option is challenging to time accurately and often proves mostly ineffective in addressing the problem.

For the more information specific to kudzu bug in Florida, consult your extension office.

Supporting information for this article can also be found by clicking the link below.

The Kudzu Bug – UF/IFAS Pest Alert (ufl.edu)

Kudzu Bugs – Will They Overwinter in Your Neighborhood? – UF/IFAS North Florida Research and Education Center

Muscadine Grapes, a Southern Treat

Muscadine Grapes, a Southern Treat

I grew up with muscadine grapes. I liked them as a kid and still enjoy them today. In my opinion, they are a southern late summer and fall treat.

Not everyone shares in my fondness for this native fruit of the Southeastern United States. If you did not grow up here, muscadines may be an acquired taste. They are different than the bunch type grapes that most are accustomed to eating. As a matter of fact, most first timers require some instructions in how to eat a muscadine. Nowadays you can search “how to eat a muscadine” on the internet and find written instructions and even short videos on how to eat this grape.

Fruit clusters on a muscadine grape
Muscadine grapes (Vitus rotundifolia) on the vine. Credit: David Nance, USDA Agricultural Research Service, Bugwood.com

Muscadines have thick skins (hulls) and contain fairly large seeds. Some muscadine purist may pop the entire fruit in their mouth, bite down and eat hull, pulp, juice and seeds. The few people that eat hull, seeds and all may do it for health benefits. The skin and seeds are full of antioxidants and nutrients. But most people do not like the thick and sometimes bitter hull or seeds. So, one technique is to place the grape with the stem scar facing upward in your mouth and squeeze or bite the grape. The sweet juice and pulp will burst into your mouth. The thick skin is then removed and discarded. The seeds are contained in the pulp. It can take some practice removing the seeds from the pulp while in the mouth. Some people enjoy the juice and spit out the pulp with seeds. Others use their teeth and tongue to remove the seeds and then eat the pulp. Some swallow pulp with seeds.

Apparently, muscadines were a pleasant find by the early European explorers to our area. Many names have been used to denote this native grape in the wild including Bullace, Bullis and Muscadine. ‘Scuppernong’ was the first named variety of the bronze muscadine discovered growing in the wild in North Carolina in the mid-1700s. Even though there are now numerous named varieties of the bronze muscadine such as ‘Carlos’, ‘Fry’ and ‘Summit’, many southerners still refer to all bronze types as Scuppernong. Purple or black varieties are commonly called muscadines.

Muscadines range from bronze to dark purple to black in color when ripe. There are more than one hundred improved varieties from which to choose.

Winter, December through February, is the time to plant bare-root vines. Check with local nurseries on availability. More information on selection, planting and care of muscadines is available at https://edis.ifas.ufl.edu/publication/HS100 or from the UF/IFAS Extension Office in your County.  

Potato: A Lot of Tuber in a Little Space

Potato: A Lot of Tuber in a Little Space

Looking to add a nutritional powerhouse to your early season garden this year? One plant that is often thought to be difficult to grow in Florida will surprise many home gardeners. This plant has a long, storied history, having been introduced extensively worldwide, and has invigorated and decimated entire populations. I speak, of course, of the humble potato (Solanum tuberosum), which performs well in our cooler North Florida winter. This member of the Solanaceae or nightshade family can trace its origins to the Andes mountains, where it was discovered by European settlers and brought back to their countries of origin. From there, the potato found success as a food crop and was reintroduced worldwide. This tuber is a big producer, and worthy of a spot in your home garden.

Varieties

The first objective with potatoes is to find a variety that will perform well in our sandy soils and climate. Russets are thought to be the gold standard in potatoes, and while some may be suitable, they are not optimal for Florida gardens. Instead look for some of the later entrants to this market. Several white and red varieties are available which mature quickly and can tolerate environmental conditions in the panhandle. White varieties suitable for this region are ‘Lachipper’ and ‘Sebago’, while the red varieties known to do well here are ‘Red Lasoda’ and ‘LaRouge’. These are compatible with our environment and as such perform well here.

Potato varieties
UF/IFAS photo: C. Hutchinson

Growth Practices

A well-draining, slightly acidic, and loose soil will provide the best environment for maximum yield. As with all gardening, it’s best to have your soil tested well before you plant and make any pH adjustments required early. Potatoes grow from “seed” which are essentially smaller potatoes grown specifically to produce more plants. It’s best to acquire these from a reputable seller and avoid grocery store leftovers, as their variety and disease resistance is questionable. Growth happens from the “eye” of the seed, which may be planted with or without growing roots.  Cut the seeds into smaller pieces, ensuring there is at least one eye per piece, and allow them to sit in a cool, dark environment for a few days to callous over. They are now ready to plant and should be four inches deep, spaced eight inches apart in three-foot rows. Potatoes require two fertilizer applications, emphasizing nitrogen and potassium specifically, as these pass through the soil easily with irrigation. Apply half of the fertilizer at planting with another application approximately 30-40 days later. Application rates vary and are based on yield goals as well as soil test results so check with your local extension agent to discuss application rates. Keep the potatoes evenly moist but make sure not to flood the rows. Finally, there is a unique methodology with potatoes in that you’ll need to add soil to the top of the row when the potatoes poke through. This is called hilling and is crucial to keep the tubers from turning green and producing a toxin known as solanine.

Potato plant with tubers
UF/IFAS photo: C. Christensen

Harvest Time

Your potatoes should be harvestable in about 90-105 days, depending on variety and environmental factors. You’ll be able to tell the plant has matured as the vines will begin to die back naturally. Modern practices have augmented this to include a vine kill which may be performed mechanically or through chemical application. This will force the tubers to mature, allowing the gardener greater control of harvest times and helping to avoid the risk of late-season pathogens. Vine kills are performed between 80-90 days after planting with tubers remaining in the ground for an additional 21 days. All of these time frames are dependent on variety but will produce a more usable and easy-to-store tuber.    

Potatoes after digging
UF/IFAS photo: C. Christensen

Potatoes are a worthy addition to the garden and can provide a lot of nutrient-dense food in a small space. There are a few tricks to growing these tubers, but for what they give back, you’ll find it a very rewarding experience.  For more information, see these Ask IFAS documents. As always, please contact your local extension agent for additional information on this and any topic regarding your gardens and more.

Bird Feeder Surprises

Bird Feeder Surprises

Cardinal at bird feeder. Source: Adobe Stock.

Many homeowners enjoy placing bird feeders in the landscape and filling them with purchased bird seed mixes to delight in observing the various visitors. In addition to our common songbirds, and maybe some rare migrating species that stop for a moment, you may also find some non-feathered species, such as the ever-troubling squirrels and an occasional snake. You may find some interesting and new plants popping up under the feeder, too.

Plant volunteers under the feeder are usually coming in from the bird seed itself. Hulled seeds, as well as any imported seeds, are less likely to sprout, but bags of purchased bird seed will generally provide an ingredient list, showing you the potential options. Based on my observations, along with a review of other articles and communication with local bird seed providers, the common plants you will see sprout under the feeder include millets, safflower, and sunflowers.

Proso millet (Panicum miliaceum) has a more open seed head than great millet (Sorghum bicolor). Credit: Adobe Stock.
Great millet (Sorghum bicolor), also known as sorghum or milo, is a common bird seed ingredient. Credit: Adobe Stock.

Millet is a common name applied to various grain crops. Proso millet (Panicum miliaceum) and great millet (Sorghum bicolor), also known as sorghum or milo, are your most common millets in bird seed mixes. Proso millet is more preferred as bird seed since most birds tend to push aside the great millet. Lower cost bird seed products will often have the great millet, and this species will readily sprout under a feeder. In addition to feeding birds, the various millet crops are also used to feed humans throughout the world, with sorghum being the fifth most important cereal crop after rice, wheat, corn, and barley.

Safflower (Carthamus tinctorius) is a surprising find under the bird feeder. Credit: Adobe Stock.

Safflower (Carthamus tinctorius) is the bird feeder volunteer that sparked my interest in discovering the plants contained in bird seed. Safflower is readily gobbled up by Cardinals, Grosbeaks, Nuthatches, Finches, and Titmice. This daisy relative is native to the Mediterranean region and is one of human’s earliest cultivated crops used for dyes, seasoning (a substitute for saffron), oils, and, of course, bird seed.

Everybody loves sunflowers (Helianthus annuus)! Credit: Rachel Mathes; UF/IFAS.

A more common bird feeder volunteer are sunflowers (Helianthus annuus). There are many varieties of sunflowers that have been developed over the years. Bird enthusiasts mainly distinguish between black oil and striped sunflower seeds. These derive from either oil-producing varieties (black oil seeds) or what is known as confection sunflowers (striped seed). The oil-producing varieties were bred to produce sunflower oil and the seeds are generally smaller, have a higher oil content, and a thinner husk, all making them very attractive to a larger variety of birds. The confection sunflowers have larger seeds on larger heads and were bred to be easier for us humans to get into. For feeding birds, the confection varieties with the striped seed have a thicker husk and so are harder for many smaller birds to feed on. If you allow these to grow, both varieties can grow quite large, so be prepared.

In general, many bird enthusiasts will encourage you to clean these seeds up as they can attract unwanted wildlife, from unsavory birds, like Pigeons, Starlings, and Finches, to mice and raccoons. However, even a tidy feeder of birds will likely have some seeds germinate and may want to know what they are. It’s also great fun to watch the birds skip your feeder and go right to the source, picking millet or sunflower seeds right off the plant.

Providing a diverse landscape of native plants that occupy different vertical layers is beneficial for birds and other wildlife. Credit: NC State Extension.

While bird feeders should be considered a treat for your wild birds, like desserts on the top of the old food pyramid, they are still fun to set out in the landscape to provide a spot for you and your family and friends to observe wildlife. Remember that the best way to feed the birds is to provide a diverse landscape, especially one with many different vertical layers and native plant species. For more information on feeding birds, you can read the UF/IFAS document Attracting Backyard Birds: Bird Feeder Selection that contains information on the different types of bird feeders, but also on the various seeds. The UF/IFAS Gardening Solutions website also has a great page on Gardening for Birds.