by Joshua Criss | Jan 9, 2025
Well folks, the earth has made yet another trip around the sun, and we find ourselves in another of hopefully many a new year. The weather has been cold, but it’s important that we spend a few moments plotting a strategy for our lawns in the coming year. Lawncare is a subject which is shrouded in myths and often misunderstood. Luckily, a little bit of knowledge can help you achieve stress free healthy turfgrasses.
Lifecycle
The first thing homeowners should understand is how turfgrass grows throughout the year. Turfgrass is split into warm and cool season species. You may have guessed that in the Florida Panhandle, warm season grasses are dominant. These grasses perform well in warmer weather going dormant when temperature begins to fall. During this dormant period, these grasses turn brown and may appear to have died. The grass itself is alive and well, but the roots have died back significantly.
Fertilizers
Why is this an important piece of information? There is no point in applying fertilizers to turfgrasses with no ability to absorb them. Instead, waiting until mid-April (think Tax Day) for fertilizers provides two key benefits. First, it allows time for the grass to develop a thick mat of roots. As roots are the main tissue for nutrient entry into plants allowing your lawn to utilize the applied nutrition. Second, waiting until a little later evades late season freezes. Cold weather may harm early season growth which stresses your lawn which could cause die back allowing weeds to take over.
UF/IFAS photo: GI-BMP
Weed Prevention
The subject of weeds brings us to a critical cultural practice in terms of lawncare. The application of preemergent herbicides. These herbicides are designed to create a barrier in the top 1/2 inch of soil which prevents shoot and root growth after weed seed germination.
Now, it’s important to understand, there are hundreds of thousands of weed seeds in the top layers of soil all over the world. Weeds take advantage of open spots in your lawn as does any plant in any ecological system.
A preemergent herbicide prevents weed from being able to fill those spaces, by preventing their growth. Given the proper watering and fertilization, your grass may now fill these voids. Your lawn will outcompete the weeds and become its own preventative.
Selecting and application of a pre-emergent herbicide does have some nuance. Not every product is compatible with every grass type, consult our Weed Management Guide to select a product that will work for your lawn. Another concern is application timing and frequency. Multiple applications will likely be required in the spring due to those triggers which break seed dormancy combined with product efficacy timelines. Local extension offices are a great resource for specificity, but generally application will need to be mid-February with a second application 6-8 weeks later based on the product label. Also important to note is that this is a long-term process. It may take a few years of spring and fall application to eradicate the weeds in your lawn.
Lawn decline from weed infestation UF/IFAS Photo: Pawel Petelewicz
To Sum Up
Turfgrasses make excellent groundcovers and are look best when grown as stress free as possible. In the early parts of the year that entails holding off on fertilization and adding a layer of protection for summer weeds. Getting to know your turfgrass and familiarizing yourself with proper cultural practices will go a long way to making a healthy lush lawn. For more information you may read through our Florida Lawn Handbook or consult your local Extension Agent.
by Sheila Dunning | Jan 9, 2025
Camellias have been a part of the landscape in the Southeastern United States for over 200 years. They are native to Asia and were introduced near Charleston, South Carolina in 1786. The common name camellia refers to varieties and hybrids of Camellia japonica and to lesser known varieties of C. sasanqua and C. reticulata. The growing conditions in Northwest Florida are well suited for many camellia varieties. Camellias can serve several functions in the landscape including foundation plantings, screens, accent plants, background groupings and hedges. Maximum benefit can be achieved by mass plantings or groupings. Single plants should be focal point in beds rather than randomly placed throughout the lawn. Camellias flower in the fall and winter when their display of colorful blooms is most appreciated. During the remainder of the year their evergreen foliage, interesting shapes and textures, and relatively slow growth make camellias excellent landscape plants. Some camellia growers enjoy competing in flower shows and manipulate the flower buds to achieve larger and earlier flowers. This involves removing competing flower buds and applying gibberellic acid (a plant hormone). Individual cultivars can be selected for size and form ranging from small and irregular to large and upright. Texture and foliage color also differ among the various species and multiple varieties. Midseason flowering varieties that bloom from November through January are best suited for Florida conditions. Warm fall temperatures may prevent early varieties from flowering properly. Late-blooming selections may attempt to send out new leaves before the end of the flowering period which results in “bull
noses”. Bullnosing is characterized by poor quality flowers which do not open fully and may even drop while still tight buds. Extended dry periods while in the bud stage can make the condition more likely. While flowering, camellias need 1 inch of water applied each week. Camellias perform best in partially shaded locations which are enhanced by good drainage and air movement. Fertile, acidic soils high in organic matter are preferred. The soil must be well drained because camellias will not grow in wet areas. Do not plant them in areas with a high water table and/or hard pan. This will result in a shallow root system which is more susceptible to injury during dry periods. Camellias should be installed where cold air can move in and out freely, but the area should be protected from strong northwest winds. Plantings under established trees or in areas that have structures to block the wind are usually injured less by cold temperatures. These conditions enable the plants to gradually thaw or warm in the morning before being exposed to direct sunlight. Dense shade may result in sparse foliage and poor flowering. Camellias exposed to full sun may appear yellow-green, but may yield more flowers. Either situation is stressful to the plants and can lead to pest problems. Tea scale is the most common insect on camellias. Scales generally feed on the underside of leaves and may not be noticed until large populations have developed. Symptoms include very small elongated white and/or brown raised “flakes” on the underside of leaves that turn yellowish in color.
by Daniel J. Leonard | Jan 9, 2025
The Panhandle isn’t known for its fall foliage. The best we can normally hope for are splashes of pale yellow amidst a sea of green pine needles, drab brown leaves killed by the first frost, and invasive Chinese Tallow trees taunting us with vibrant colors we know we shouldn’t have. However, in 2024, you’d be forgiven if you forgot you were in Florida and had instead been transported to a more northern clime where leaves everywhere turned brilliant shades of yellow, orange, purple, and red. I’ve heard comments from many folks, and I agree, that this is the best fall color we’ve seen here in a long time – maybe ever. So, why were the leaves so pretty this past year? Let’s dive in.
Shumard Oak displaying brilliant red fall foliage. Photo courtesy of Daniel Leonard.
What causes leaves to change colors in the fall?
First, what makes leaves of deciduous trees/shrubs (plants that shed their leaves in the winter) change color in the first place? The primary driver of leaf color change is daylength. During the summer, leaves appear green due to the presence of chlorophyll, which reflects green light, absorbs red and blue light, and is responsible for photosynthesis. When days shorten in the fall, plants sense that winter is coming and produce hormones that signal leaves to shut down chlorophyll production. They then initiate construction of a “wall” of cells that seals leaves off from the rest of the plant. When this happens, existing chlorophyll is “used up”, sugars build up in the now sealed off leaves, and other compounds that give leaves color, anthocyanins and carotenoids, take center stage. These compounds allow leaves to exhibit the familiar autumnal hues of yellow, red, orange, purple, and brown. However, plants go through this physiological process of shutting down growth and shedding leaves every year and excellent fall color. What we experienced this year, doesn’t always result. There has to be more to the fall 2024 story.
Why were leaves so pretty this year?
A second factor is required for a great fall foliage show – weather. According to the U.S. Forest Service, ideal temperature and moisture conditions must be met for leaf color to be its most intense. Ideal autumn conditions include warm (but not hot) sunny days with cool (but not freezing) nights and adequate (but not excessive) moisture. Too hot and plants become stressed, lessening fall color potential. Too cold, and frost can kill foliage – turning it immediately brown and preventing color development. Too rainy or windy, and leaves can be blown off prematurely. 2024 brought neither extremely hot, extremely cold, or extremely wet conditions, and we were blessed to experience a Goldilocks fall color season.
Bald Cypress with trademark burnt orange color. Photo courtesy of Daniel Leonard.
Did Some Trees Have Better Color than Others?
While pretty much all deciduous trees exhibited their peak color potential this year, there were definitely standouts! Fortunately, many of the prettiest trees this fall also make outstanding landscape trees. Be on the lookout for the following trees in nurseries this winter and consider adding a few to your yard to take advantage of the next Goldilocks fall color year:
- Red Maple (Acer rubrum) – brilliant red fall leaves.
- Florida Maple (Acer floridanum) – yellow/orange.
- Deciduous Oaks (Quercus spp) – generally red to purple. Some species like Sawtooth Oak ( acutissima) are yellow.
- Green Ash (Fraxinus pennsylvanica) – yellow.
- Swamp Tupelo (Nyssa sylvatica) – crimson to purple.
- Sweetgum (Liquidambar styraciflua) – highly variable but generally reds, oranges, and purples.
- Bald Cypress (Taxodium distichum) – burnt orange.
For more information about fall color, which trees and shrubs produce great fall color and perform well in landscapes, or any other horticultural topic, contact your local UF/IFAS County Extension office. Happy Gardening!
by Matt Lollar | Jan 2, 2025
It’s a new year and if you’re still contemplating resolutions, here’s one for you. Stay organized with your vegetable planting schedule. Since it’s January, let’s start with what you can do now. Crops like beets, broccoli, and Brussels are best planted as transplants in January. But carrots and celery can be started from seed and potatoes can be planted as seed potatoes, which are usually pieces of potato tubers containing at least 3 buds (eyes). January is also a good time to start transplants indoors for the spring garden. Tomato and pepper transplants can be planted in the garden as early as February or March depending on the year. If all this planting talk is overwhelming, then at least consider collecting and mailing off a soil sample for nutrient analysis. More information on soil testing can be found on askIFAS. This will give you a head start on adjusting pH with lime and improving soil health with compost and other organic materials. To help plan this “Year of the Vegetable Garden” please click below to enlarge the image of the handy “Florida Panhandle Planting Guide”.
by Larry Williams | Jan 2, 2025
In the Christmas story as recorded in the book of Matthew, wise men presented gifts to baby Jesus. Two of these gifts were frankincense and myrrh. These are costly perfume oils derived from certain trees found in parts of the Middle East.
According to Dr. Kim Coder, urban forestry specialist with the UGA Extension Service, there are more than 36 trees mentioned throughout the Old and New Testaments. Some of these trees have relatives living here in Florida.
In an article on this topic, Coder said, “The trees most people think of from the Bible are the Cedars of Lebanon.” Lebanon cedars are true cedars like the Deodar cedar found planted in some North Florida communities. He said, “Today a relict (species of an earlier time) grove of 400 trees still survives on Mount Lebanon that is more than 2000 years old.”
Sweetgum tree fall foliage at Okaloosa County Extension Office. Credit: Larry Williams
The sycamore common to North Florida does not grow in Palestine. “The sycamore of the Bible is the sycamore fig,” Coder explained. The fruit of the sycamore fig is smaller and less sweet as compared to the table fig and was considered food for the poor. Another name used by some people in the United States for sycamore is plane tree but Coder said that the plane trees referred to in the Bible were the flowering viburnums and oriental plane trees in the Middle East. “Also mentioned is the sycamine, which is the black mulberry,” Coder said.
The poplar trees of the Bible are the same white poplar that you can find growing in some areas of North Florida but it is more commonly found north of Florida. “But poplar also means
Sweetgum star-shaped leaves in fall. Credit: Larry Williams
snowbell, which is related to our native snowbells,” Coder said. “The name poplar was used for two distinctly different trees.”
One tree from the Bible that is common in North Florida is balm. “The balm, or balm of Gilead, was the sweetgum tree,” Coder said. The sweetgum of the Middle East is almost identical to our sweetgum tree that grows all over North Florida. Coder said that there is a tree named “Balm of Gilead” that grows in the northern United States but it is native only to North America. “Our sweetgum is a botanical link to the sweetgum of the Bible,” he said.
Ebony wood, which is also mentioned in the Bible, was imported for carvings and decorations. “Ebony is related to our common persimmon,” Coder said.
Florida’s forests are filled with close relatives of a number of Biblical trees. “There are many links to our cultural heritage stemming from the Bible,” Coder said. “Touch a sweetgum leaf and you hold a piece of Christian and Jewish history.”
