A large Carolina wolfberry shrub thrives near St. Marks’ lighthouse at the wildlife refuge. Photo credit: Carrie Stevenson, UF IFAS Extension
I was lucky enough to spend a weekend in November exploring a lovely, low-key stretch of northwest Florida. We hiked trails and took the boat tour at Wakulla Springs State Park, marveling at the numerous alligators and admiring birds and a slow-moving manatee. We also hiked through St. Marks National Wildlife Refuge, which is home to a nearly 200-year-old lighthouse and keeper’s house, which have a fascinating history of their own.
The brilliant red, and edible, berry of the Carolina wolfberry is ripe in late fall/early December. Photo credit: Carrie Stevenson, UF IFAS Extension
Exploring the shoreline of Apalachee Bay behind the lighthouse, we watched fiddler crabs run the salt flats and herons quietly stalk their prey. Always on the lookout for something new, I noticed a large shrub growing several yards back from the beach. It looked like a cross between a rosemary and a holly, with delicate lavender/purple flowers and brilliant red teardrop-shaped fruit. I’d never seen it before.
Map of the natural range of Carolina wolfberry in Florida. Figure courtesy of the Florida Native Plant Society.
After a quick investigation, I learned it was a Carolina wolfberry, aka Carolina deserthorn, aka Christmas berry (Lycium carolinianum). The invasive species coral ardisia (Ardisia crenata) is also known in some areas as Christmas berry—this is why scientific names are so useful—but that is not the plant we saw at St. Marks. The native Carolina wolfberry was located right where you might expect it, on dry coastal scrub, in view of the saltwater it easily tolerates. Its native range in Florida starts along the coastline east of here, particularly Bay and Wakulla counties and all the way down around the state.
The delicate lavender flower of the Carolina wolfberry is a popular nectar source for native butterflies. Photo credit: Peggy Romfh
The tall shrub is evergreen, with leaves adapted into a long, thin, slightly succulent near-needle shape. This leaf form helps hold water in a dry, salty environment and prevents evaporation. The tips of the shrub’s branches have thorns, hence the common name “desert-thorn.” Carolina wolfberry produces those attractive little purple blooms in the fall, providing nectar for several species of native butterflies. In late fall/early winter, the brilliant red fruits show up. They are less than an inch long and reminiscent of peppers. When ripe, the fruit are edible and are described as sweet and tomato-like. The fruit are not only popular for human consumption, but also for birds, deer, and raccoons. Just before we walked down the beach, another visitor saw a bobcat disappear into the shrub, which provides cover for many additional species besides those who eat it directly.
Illustration from a 15th century plant medicine book showing the mandrake, a member of the Solanaceae family.
Carolina wolfberry is a member of the Solanaceae family, aka nightshade (sometimes referred to as “deadly nightshade”). Other relatives include edible tomatoes, peppers, potatoes, eggplant, and groundcherry. The “deadly” part refers to related species like belladonna and mandrake, from which toxic poisons can be extracted. If you’re looking for a fascinating historical deep dive into these plants’ connection to witches, Shakespeare, and the death of multiple Roman emperors, look no further than the US Forest Service’s web page on the “Powerful Solanaceae” family!
One of my favorite landscape plants is blooming right now in Panhandle landscapes – ‘Soft Caress’ Mahonia. ‘Soft Caress’ was first introduced into the commercial nursery trade in 2006 and included in the Southern Living Plant Collection, but didn’t achieve garden fame until 2013 when it won first place in the Royal Horticultural Society’s (RHS) prestigious Chelsea Flower Show. I first planted a group of ‘Soft Caress’ about ten years ago and as those plants have matured, so too has my appreciation for them. The following are a couple of my favorite outstanding aspects of these small shrubs.
Fall Flowers. Other than camellias, there isn’t a lot else in Panhandle landscapes blooming from mid-November to January and ‘Soft Caress’ Mahonia helps fill that flower void. Brilliant yellow flower spikes rise above the deep-green fernlike foliage and very welcome in this otherwise drab and dreary gardening season.
‘Soft Caress’ Mahonia’s winter flowers are excellent pollinator attractors. Photo courtesy Daniel Leonard.
Quick growing but small statured. If you’ve gardened very long, you’ll know this is a tough ask! Plants that reach mature size relatively rapidly but also don’t get very big are a rare breed. ‘Soft Caress’ Mahonia grows quickly but also maxes out in size rather quickly – mine are very easily maintained at 3-4’ in height with a single annual trim.
~10-year old ‘Soft Caress’ Mahonia Shrub. Photo courtesy Daniel Leonard.
Extremely tough and adaptable. My Mahonia plants have persisted through drought, hurricanes, floods, and freezes and have never looked better. These little plants are simply tough. They’ve had no disease issues and no pest problems (except for a little deer browsing one year, but that appears to be an isolated incident). While they prefer shade, they can also handle several hours of morning sun without incident.
‘Soft Caress’ Mahonia is a standout plant that fills a mostly flowerless period in landscapes, fills its designated landscape spot quickly but won’t outgrow it, and is truly tough. Add a couple to your landscape this winter!
A recent visit to the Dothan Area Botanical Garden (DABG) reminded me that although many of our summer flowers are winding down, we have a great garden show coming this winter when the southern classic camellias start to show their stuff. DABG has a large collection of camellias that will start blooming in the coming months. Here is a little background on the two most common types of camellias grown in our area.
Camellia japonica
Also known as Japanese Camellia, C. japonica thrive in partial sun to full shade. Direct morning sun with some shelter from the sun in the hottest part of the day is a good compromise. Too much shade can reduce flowering, so aim for at least partial sun.
Most Japanese Camellias bloom from January to March, but some may start earlier in the season. Flower shapes include single, semi-double, anemone, peony, and formal double. Flower colors are white, pink, red, and sometimes a combination of multiple colors! Camellia japonica mature at 10-15’ tall and wide but may get as big as 25 feet. This makes them ideal to create privacy in the garden or have the lower limbs trimmed into a tree-form.
Camellia sasanqua
Sasanqua camellias also prefer part sun but can also thrive in full sun once established. Leaves and flowers are typically smaller than C. japonica which is an easy way to differentiate. Although most have upright habits and can grow 10-15’ tall as well, there are a few cultivars such as ‘Shishi Gashira’, ‘Bonanza’, and ‘Mine-no-yuki’ that have more horizontal branching making them good options for foundation plantings. Sasanqua camellia are usually in full bloom in the fall, but may bloom as late as January. Flower shapes are similar to C. japonicas, but many varieties have more open flowers with exposed stamens that are beneficial to pollinators.
Despite being a near-perfect ornamental for the Panhandle, Crape Myrtle is often misused. Though there are dozens of commercially available varieties in all shapes and sizes, many people choose the wrong one for their yard. The most commonly sold cultivars ‘Natchez’ (white flowers), ‘Muskogee’ (pink flowers), and ‘Tuscarora’ (watermelon red flowers) – all three attain mature heights more than 20’ – are almost always too large for siting near a house or other structure and are often out of scale with landscapes. The simple solution to making the best use of Crape Myrtle in smaller yards (certainly not dramatic pruning – Crape Murder is among the worst landscape sins), is to select a smaller growing variety and ‘Tonto’ is a personal favorite in this category.
‘Tonto’ Crape Myrtle, one of the selections that emerged from Dr. Don Egolf’s Crape Myrtle breeding program at the U.S. National Arboretum over 50 years ago, is among my favorite Crape Myrtle varieties for several reasons. First, Tonto’s fuchsia hued flowers are as vibrant as flowers come; they practically glow in the landscape. The flower show lasts for several months and are a valuable food source for pollinators, bees in particular, in the late summer when few things are blooming. Tonto also is a relatively slow grower that only reaches about 10’ tall and wide at maturity. This allows the variety to be exceedingly versatile in landscapes as it can be used in the background of planting beds, as a specimen plant, limbed up as a small tree in open areas, or even placed in very large containers. Finally, beyond just the flower show and ideal size, ‘Tonto’ has uniquely attractive, cream colored, exfoliating bark and reliably attractive fall foliage. Both these features add interest to landscapes, even when ‘Tonto’ isn’t flowering.
Though ‘Tonto’ sports many unique qualities, it shares many other excellent traits and growing preferences with its Crape Myrtle kin. For best results growing any Crape Myrtle, trees should always be sited in full sun, at least 6-8 hours a day. Shading will result in greatly reduced flowering and lanky plants. Regular watering during the first year after planning while trees are becoming established is helpful, as is periodic fertilizer application. Once established, ‘Tonto’ and all other Crape Myrtles are exceedingly drought tolerant and can get by on their own with minimal inputs from gardeners.
If you’ve been struggling with a Crape Myrtle that has outgrown its site or thinking about planting a new Crape, I’d encourage you to give ‘Tonto’ a look. It’s an outstanding shrub/small tree, will reward you with flaming fuchsia flowers and smooth cream-colored bark each summer, and will never outgrow its space. Plant one today! For more information on growing Crape Myrtles or any other horticultural topic, contact us at the UF/IFAS Calhoun County Extension Office. Happy gardening.
Vegetative plant propagation is a way for one plant to create another plant without the need for pollination to occur. This process is often much faster in achieving a new plant than growing from seed. The genetics of the parent plant can be carried on through this vegetative propagation method. There are many methods to propagate plants and the one covered in this article was taught to me by my grandmother many years ago – layering. Layering is a science and an art and has been performed by humans for over four thousand years.
Propagating plants by layering can be accomplished in several ways, including simple, tip, air, mound, compound, and runner production layering methods. Many plants in nature propagate by layering accidentally when long, low-lying limbs contact the soil around the plant and are eventually covered by leaves from other surrounding trees and shrubs. This creates an organic cover over a part of the limb and keeps the area moist. This creates the situation for adventitious roots to develop at the soil contact area. This occurrence is called simple layering and is often mimicked by gardeners in the landscape. Not all plants respond to this type of propagation, but several common species that do are azaleas, jasmine, viburnum, climbing rose, and grapevines.
Unlike simple layering, tip layering involves digging out a shallow 3–4″ hole, which will allow space to bend the end of the branch down into the hole with the tip out the other side. Then, simply cover the hole to keep the branch in the ground. It may take something with a little weight placed over the covered hole to keep the branch from popping out. A brick or rock may be all that is needed. Both methods will take months for enough roots to develop before clipping the branch with a new plant ready to be dug and set somewhere new. For best results with both simple and tip layering, begin either in early spring with last seasons growth or late summer, utilizing that current year’s growth.
Simple layering. Photo Credit: Stephen Greer, University of Florida/IFAS – Santa Rosa County
Air layering is a fun adventure to rooting a new plant and can be used with both outdoor and indoor plants. It can be used on outdoor plants like camellia, azalea, maples, and magnolia, or indoor plants including weeping fig, rubber tree, and dieffenbachia. This type of layering requires a bit more planning and preparation than simple or tip layering. If the plant has a bark layer surrounding the cambium layer (this is the growing part of the limb and trunk and appears green) this area will need to be removed with a sharp clean knife. Choose a 1- ½ inch long area of the limb and scrape this area to remove the cambium layer located just beneath the bark. This is done to prevent the outside limb area from reconnecting back to the limb portion connected to the plant. Sphagnum moss will be needed to wrap around the wound site to create a rooting zone. Be sure to soak the moss with water by immersing it in a bucket of water, then squeeze it out. Wrap the moss with plastic wrap, making sure the moss is fully covered and tucked inside of the plastic. Both ends of the plastic wrap need to be secured tightly with twist ties or string. Make sure it remains tight throughout the 2 – 4 months needed for rooting to occur. If this process takes place in a sunny location, cover the plastic wrap with tin foil to block out the light.
Air layering a camelia. Photo Credit: Stephen Greer, University of Florida/IFAS – Santa Rosa County
There are other methods to layering plants and if you are interested, search online through the University of Florida IFAS EDIS site or contact your local UF IFAS Extension office in your local county. Enjoy growing your new plants.
When beautyberries start producing their eye-catching, bright purple fruit in late summer, we start to get lots of questions. People want to know what it is, where can they find it, and can they eat it? While the berries look good enough to eat, it’s best to leave them to the birds and deer. They are not toxic and were used by Native Americans for a root tea to treat fevers, stomach aches, malaria, and more, but the taste has been described as bitter and mealy. Thanks to a generous volunteer, I am lucky enough to have tried beautyberry jelly. A little (or a lot) of sugar can make most anything taste good—and the finished product is a beautiful, translucent shade of fuchsia.
Homemade beautyberry jelly is a real treat for breakfast! Photo credit: Carrie Stevenson, UF IFAS Extension
Even more interesting to me was the revelation that researchers have been able to extract compounds from beautyberry that successfully repel pest insects such as ticks and mosquitoes. The study began about 15 years ago, after a Mississippi botanist with the USDA Agricultural Research Service mentioned to a colleague that his grandfather taught him to rub the crushed leaves of beautyberry on his skin. The technique had been used as a home remedy to prevent mosquito bites for people (and horses) for generations. As a follow up experiment, another group of researchers found these same compounds—callicarpenal and intermedeol—successfully repelled black-legged ticks (which transmit Lyme disease) as effectively as DEET. In the last few years, researchers out of Mississippi have worked towards creating natural insect repellents from the compound that are less harsh on human skin that many commercially available brands.
The striking purple berries of the beautyberry shrub attract the attention of people and wildlife, alike. Photo credit: Carrie Stevenson, UF IFAS Extension
Aside from its many practical uses, Callicarpa americana is a beautiful native shrub. It has wide green leaves and the brilliant purple berries grow in clusters along its stem. They stay on through late fall and winter in some places, making a beautiful contrast to fall foliage. Beautyberry shrubs can be found in a wide variety of habitats, including sandy and wet soils, full sun, and part shade. Their adaptability makes them a great plant for tight conditions like roadsides or yard edges, but also for nearly any home landscape. The plants can grow to a height of 4-8 feet and spread 3-6 feet wide. The long-lasting berries make them a great wildlife food source later in the cool season than many berry-producing species.
