‘Tonto’ Crape Myrtle – the Perfect Small Tree for Small Yards

‘Tonto’ Crape Myrtle – the Perfect Small Tree for Small Yards

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.

Propagating Plants by Layering

Propagating Plants by Layering

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
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
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. 

American beautyberry

American beautyberry

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.

When It’s Too Hot to Garden.  What to Do?

When It’s Too Hot to Garden.  What to Do?

I don’t know if you’ve noticed, but it’s been hot outside.  Like really, scorching, hellacious, dog days hot.  In this weather pattern we’ve been in, it’s hard to make yourself do non-essential stuff outside that doesn’t involve swimming and so our gardens go by the wayside.  In my opinion, that’s totally okay!  Give yourself a rest from the garden and landscape chores for the next couple of weeks and get your fall gameplan ready.  The following are some things to think about over the next few weeks to prepare yourself for the coming cooler weather!

Soil testing in centipedegrass. Photo courtesy of Daniel Leonard.

Get your soil tested.  If you’re an in-ground vegetable gardener or just like to have an attractive lawn/landscape, performing a simple soil test can offer either peace of mind that your soil’s pH and fertility is good or give you a nudge to schedule some needed amendments.  Though I don’t recommend fertilizing lawn grass this late and there’s no need to fertilize the garden before it gets planted in mid-late September, you can certainly begin to source and price fertilizer for the appropriate time based on your test results.  However, now IS the perfect time to get lime out in a vegetable garden if your pH has sunk beneath the recommended 6.5.  Lime takes weeks to months to begin to alter soil chemistry so the sooner the better if it is needed! 

Order seeds.  While I love to support local farm stores and plant nurseries, you are limited with the vegetable and flower varieties you can plant by what they have in stock.  I enjoy trying new/improved and heirloom plant varieties each year and, most of the time, these can only be found by ordering online.  For the latest in vegetable and cut flower varieties with a nice mix of heirloom cultivars thrown in also, I can recommend Johnny’s Selected Seeds, Baker Creek Heirloom Seeds, Seed Savers Exchange, and other similar purveyors – all of these are great places to look.  Continue to purchase your more common standbys through local outlets but, this year get different and try new things by ordering online!

Develop a garden/landscape plan.  I doubt there’s a gardener amongst us who wouldn’t like to rearrange things a bit outside.  Maybe you planted your lettuce a little too closely together last year, you’ve been dreaming of installing a new flower bed, or you really want to do a full garden/landscape renovation.  The best way to be successful at any of these things is to get outside (or at least look out from behind a window in the A/C), take stock of what is already there, the space that is or might be available, research what plants or varieties might do well in your yard/garden (your local UF/IFAS Extension office is a great resource for this), and begin to sketch your ideas out.  This planning step WILL save you time and money by ensuring you don’t purchase too many plants, by picking plants that will do well, and ensuring you install everything at the correct time.

So, take advantage of the heat, stay inside, and work up your garden gameplan together this August – fall is just around the corner.  For help with soil testing, recommendations on plant varieties to purchase, or working up a garden/landscape plan tailored to you, contact your local UF/IFAS County Extension Office.  Stay cool and happy gardening!

Poinsettias

Poinsettias

A Short History

The poinsettia (Euphorbia pulcherrima) is a plant synonymous with the holiday season. Growing in deciduous forests along the Pacific coasts of southern Mexico it becomes a woody shrub reaching 10-15 feet tall. In 1825 the ambassador to Mexico Joel Poinsett was taken by the red blooms and brought it home to the United States. He propagated and gifted the plant to friends and a few public gardens. Before long the nursery industry took notice and the plant was on its way to becoming the potted plants we see in stores. Today, an extensive breeding program has created a multitude of colors and leaf patterns available to consumers for the holiday season.

Poinsettias for sale
Poinsettias for sale IFAS Photo: Josh Criss

The Plant

Poinsettia is a member of Euphorbiaceae commonly referred to as the Spurge family. The primary feature of this family is a milky sap or latex produced in the stem tissue. Some may be allergic to the latex, but to most it is at worst a mild irritant. This irritation conjoins a reputation of toxicity which may give some pause toward purchasing one. While a very mild toxicity does exist, you would need to consume very large amounts of the leaves to experience negative effects. That said, it is always best to dissuade consumption by pets and children with this and any other house plants.  The flowers of this plant are somewhat unremarkable and appear in the middle of several red leaf structures. These leaves are actually bracts and are protective structures for the flower. As a tropical plant, frosts and freezes have a detrimental consequence for this plant, but in areas where there is little or no risk of cold it may be used in your landscape after the holidays. In these scenarios, it will grow much as in its native habitat into a shrub.   

Mature poinsettia as a shrub in the landscape
A mature poinsettia planted outside of a home. IFAS photo

Care

When kept inside, keep the temperature around 65F at night and 80F during the day. They need full sun and water only when the soil is dry. It is good practice to remove any water left in pot saucers as this plant performs poorly with wet feet. All-purpose fertilizers should used except while this plant is in bloom. When blooming the plant does not require fertilization. Placed outdoors in a protect area once freeze risk has passed. Keep in mind that the bracts are photosensitive. Around October, theses plants will need 14 hours of complete darkness daily to turn their customary red by Christmas. Keep them covered and completely blacked out as even porch lights will delay color change.      

Poinsettias are a beautiful plant and certainly worth your efforts this holiday season. With some knowledge and a little effort, you may extend their life in our environment through much of the year. For more information on poinsettias, see this Ask IFAS document, or contact your local extension agent for additional information on this and any topic regarding your gardens and more.

A Nice Cup of…Camellia?

A Nice Cup of…Camellia?

Residents of North Florida are no doubt familiar with camellias, the large, glossy-green-leaved shrub that flowers during the cooler seasons. Common varieties include Camellia sasanqua, which blooms from October through December (depending on variety), and Camellia japonica, which blooms January through March. Both make huge, showy blossoms that demand attention, with forms that range from wild-rose-like to stunning geometric formal patterns.

The popularity of these shrubs is not in doubt, but a cousin of theirs takes the prize as one of the most popular plants in the world. Not due to its flowers: this variety of camellia does bloom, but the leaves are most interesting to humans. It is grown in dozens of countries worldwide and global production is estimated at over $17 billion worth of these leaves. The primary product made from this plant is a beverage that is consumed more than any other drink except water. It is, of course, tea.

Camellia sinensis or “Tea Plant”. Photo courtesy of UF/IFAS.

Camellia sinensis was named by botanist Carl Linnaeus, “Camellia” to honor another botanist, Rev. Georg Kamel, who really had nothing to do with the plant at all, and “sinensis”, which means “from China”. You may be able to deduce where tea is native to.

The tea plant prefers temperatures from 65 to 86 degrees Fahrenheit, doing well in zones 7-9. It can survive freezing or slightly-below-freezing temperatures, though leaves may be damaged by frost. It enjoys moist conditions, needing around 50 inches of rainfall per year. China tea (variety sinensis), which produces smaller, more serrated leaves, prefers more light than Assam types (variety assamica), which have larger, less serrated leaves. Either variety can be grown as a shrub or small tree.

Propagation may be accomplished either by seed or cuttings; cuttings are the preferred method for reproduction, as seeds must be germinated before the seed coat hardens for best results. Caring for tea plants once established involves more frequent but light fertilization, mulching, and regular scouting for pests. Camellia sinensis is susceptible to mites, thrips, scale insects, and aphids, all of which are present in large numbers in our area. Luckily, most of these problems can be solved with an application of either insecticidal soap or horticultural oil, if control is even necessary.

Once a tea plant is large enough to harvest leaves from, it is the new growth which is plucked. The top 2-3 leaves are used either fresh or fermented for a period of time before they are brewed. Green tea comes from the fresh leaves of China type tea plants, while either China or Assam types may be used to make black tea. Black tea leaves are picked, wilted or crushed, and allowed to ferment. Fermentation darkens the leaves and is halted by heating, which also serves to dry the leaves for storage.

For more information on the tea plant, see our EDIS publication on Tea Growing in the Florida Home Landscape.

Camellia sinensis foliage. Where the tea is made! Photo courtesy of UF/IFAS.