The colder part of the year is the best time to install hardy trees and shrubs. All their energy is in the root zone. They will establish much faster than if you wait until they are actively growing leaves.
The shaved rootball (right) is smaller than the rootball before shaving (left).
Photo: Shelia Dunning
However, planting them correctly is critical to their survival. The top three mistakes that people make are: (1) installing too deeply, (2) leaving the rootball undisturbed, and (3) not applying enough water all the way through establishment of the root system. Unfortunately, it may be years before the mistakes are noticed.
Here are the ten steps for successful planting:
1. Call 811 and have all underground utilities marked before digging the hole.
Hitting a line can be costly and life threatening.
2. Loosen all surrounding compacted soil within the potential root zone of the tree.
Tree roots are close to the surface and need to be able to push through the soil.
3. If the soil is extremely dry and sandy, amend with the entire area with organic material.
This is only needed in coastal regions.
4. Remove the container from the tree and find the top-most root.
All media covering the root flare must be removed.
5. Prepare the rootball by removing encircling roots and shaving the edges of the rootball.
The rootball should no longer be shaped like the container when complete.
6. Dig the hole slightly less shallow than the rootball.
Make sure the bottom of the hole is firm soil, so sinking will not occur.
7. Place the rootball in the ground with the main root showing just above the soil grade.
Oxygen must reach the roots for new roots to develop.
8. Back fill around the rootball with the surrounding loose soil.
Take care to not cover the root flare.
9. Mulch around the outside of the rootball without covering the rootball.
Apply at least 2-3 inches of organic mulch. No more than 4″.
10. Water immediately to settle soil and then on a regular schedule until established.
Minimum of 1 gal per 3 gal plant, every 2-4 days, for 20-28 weeks. Larger plants will require more water at each event.
Mulch should be spread about 3 inches thick around the rootball. No mulch should be spread over the rootball.
Photo: Shelia Dunning
This giant heritage live oak tree has been providing oxygen, habitat, and shelter for 900 years! Photo credit: Carrie Stevenson, UF IFAS Extension
While many people think of planting trees in the spring, autumn and winter are ideal for these activities in Florida. The cooler weather means most trees are no longer actively growing and producing new leaves and fruit, so there are fewer demands on a newly planted tree to start “working” right away. The dormant winter season allows the trees to acclimate to their new environment and begin developing sturdy root systems.
However, a newly planted tree is only as valuable as the care it’s given when planted. To ensure a successful tree, important steps to follow include proper placement, planting depth, mulching, and watering.
Proper tree planting practices can ensure a long-lived, healthy tree in the environment. Photo credit: Carrie Stevenson, UF IFAS Extension
Before digging, look up and around to make sure there are no overhead or underground obstacles within the reaches of the tree’s mature height or root system. When digging the planting hole, make sure the hole is 2-3 times as wide as the root ball. When planted, the topmost root flare (where the roots join the trunk) should be just above the surface of the adjacent landscape. It is not necessary to fertilize a newly planted tree. Use mulch to retain moisture in the soil, but do not place it against the tree’s trunk. Finally, water the tree daily, saturating the root ball, for 1-2 weeks then weekly for a year.
For more information on planting trees and good varieties of trees for Florida, visit this excellent resource from UF. As always, one should strive to plant the right tree in the right place. For those who live in suburban or urban areas, considerations like tree size, leaf shed, and water requirements are big concerns. For more information on size evaluation and plant selection, please visit this link from the UF Horticulture department.
A blackgum/tupelo tree begins changing colors in early fall. Photo credit: Carrie Stevenson, UF IFAS Extension
It’s autumn and images of red, brown, and yellow leaves falling on the forest floor near orange pumpkins enter our minds. However, Florida isn’t necessarily known for its vibrant fall foliage, but if you know where to look this time of year, you can find some amazing scenery. In late fall, the river swamps can yield beautiful fall leaf color. The shades are unique to species, too, so if you like learning to identify trees this is one of the best times of the year for it. Many of our riparian (river floodplain) areas are dominated by a handful of tree species that thrive in the moist soil of wetlands. Along freshwater creeks and rivers, these tend to be bald cypress, blackgum/tupelo, and red maple. Sweet bay magnolia (Magnolia virginiana) is also common, but its leaves stay green, with a silver-gray underside visible in the wind.
The classic “swamp tree” shape of a cypress tree is due to its buttressed trunk, an adaptation to living in wet soils. Photo credit: Carrie Stevenson, UF IFAS Extension
Bald cypress (Taxodium distichum) is one of the rare conifers that loses its leaves. In the fall, cypress tress will turn a bright rust color, dropping all their needles and leaving a skeletal, upright trunk. Blackgum/tupelo (Nyssa sylvatica) trees have nondescript, almost oval shaped leaves that will turn yellow, orange, red, and even deep purple, then slowly drop to the swamp floor. Blackgums and cypress trees share a characteristic adaptation to living in and near the water—wide, buttressed trunks. This classic “swamp” shape is a way for the trees to stabilize in the mucky, wet soil and moving water. Cypresses have the additional root support of “knees,” structures that grow from the roots and above the water to pull in oxygen and provide even more support.
A red maple leaf displaying its incredible fall colors. Photo credit: Carrie Stevenson, UF IFAS Extension
The queen of native Florida fall foliage, however, is the red maple (Acer rubrum) . Recognizable by its palm-shaped leaves and bright red stem in the growing season, its fall color is remarkable. A blazing bright red, sometimes fading to pink, orange, or streaked yellow, these trees can jump out of the landscape from miles away. A common tree throughout the Appalachian mount range, it thrives in the wetter soils of Florida swamps.
To see these colors, there are numerous beautiful hiking, paddling, and camping locations nearby, particularly throughout Blackwater State Forest and the recreation areas of Eglin Air Force Base. But even if you’re not a hiker, the next time you drive across a bridge spanning a local creek or river, look downstream. I guarantee you’ll be able to see these three tree species in all their fall glory.
Insect pests can destroy substantial quantities of crops, prompting growers to invest heavily in pesticide use. Previ
These three common species of bats in FL, GA, and AL eat insect pests notorious for causing substantial damage to crops: the Seminole bat (Lasiurus seminolus), southeastern bat (Myotis austroriparius), and evening bat (Nycticeius humeralis) (photo credits @MerlinTuttle.org).
ous research in Texas suggested that bats could reduce pesticide costs by over a million dollars within their state, due to the bats’ fondness for pests that damage cotton. Scientists at UF/IFAS recently collected evidence locally that indicates bats are providing valuable assistance with pest reduction for many of the crops grown here too.
During spring and summer of 2018 scientists at UF clarified what the common species of bats were eating in north Florida, south Georgia, and south Alabama. We investigated 161 bats across 21 counties and found that 28% of these bats ate at least one Lepidopteran (moth) pest species, 21% ate a Coleopteran (beetle) pest, and 18% ate a Hemipteran (true bug) pest. In total, 12 different species of agricultural pest species were eaten by these bats.
The moth pests consumed by bats were:
Green Cutworm Moth (Anicla infecta)
Tobacco Budworm (Chloridea virescens)
Soybean Looper (Chrysodeixis includens)
Garden Tortrix (Clepsis peritana)
Lesser Cornstalk Borer (Elasmopalpus lignosellus)
Corn Earworm (Helicoverpa zea)
Beet Armyworm (Spodoptera exigua)
Fall Armyworm (Spodoptera frugiperda)
Red-Necked Peanutworm Moth (Stegasta bosqueella)
The beetle and true bug pests consumed by bats were:
Hairy Fungus Beetle (Typhaea stercorea)
Tarnished Plant Bug (Lygus lineolaris)
Two-lined Spittlebug (Prosapia bicincta)
Three of these pests (Soybean Looper, Beet Armyworm, and Two-lined Spittlebug) were most often consumed by pregnant and juvenile bats. This is good news for growers of crops affected by these pests because you have a sound option for increasing the likelihood of bats helping control them. The trick is to provide the conditions that adult female bats like near the crops these pests feed on (e.g., soybeans, peanut, cotton, corn, sorghum, safflower). Most female bats pick a maternity roost in early spring. A maternity roost is a structure that provides warm, dry, dark conditions for female bats to sleep in during the day, and it is ultimately where they give birth to pups. When selecting a site to set up a maternity roost, female bats look for structures that are large enough to provide shelter for a large number of bats. A roomy structure can accommodate many bats, which allows the flightless pups to keep each other warm while the mothers fly in search of food at night. Installing a bat house like those shown here can provide conditions appropriate for a maternity colony, increasing your chances of having bats help control these insect pests.
Another useful strategy for enhancing pest control services by bats involves creating or maintaining structures that could serve as natural roost sites for bats. The natural structures bats prefer include large trees with cavities, dead and dying trees with peeling bark, oak trees with Spanish moss, and palm trees allowed to maintain their dead fronds. In agricultural areas and suburban areas these types of trees are often in short supply.
Maintaining large, old trees of a mix of species, and supplementing with bat houses, can help ensure there are plenty of roosting options for bats. This, in turn, will increase the likelihood that bats are available to assist with your pest management.
The swing hanging from our magnolia tree has provided many happy memories for our family. Photo credit: Carrie Stevenson
Do you have a favorite tree? Often, the trees in our lives tell a story.
One of the selling points when we bought our house 14 years ago was the tall, healthy Southern magnolia in the front yard. It was beautiful, and I could see it out my front window. A perfect shade tree, I could envision a swing hanging from its branches one day. Within six months of moving into the house, Hurricane Ivan struck. A neighbor’s tree fell and sheared off a quarter of the branches from our beloved magnolia. We were lucky to have minimal damage otherwise, and hoped the tree would survive.
The branches and leaves eventually filled in, and we added that swing I had imagined. One day I was pushing my daughter in the swing, when a car slowed on our street and stopped at our mailbox. A man stepped out and asked, “Are you enjoying that tree?” I responded that we very much were, and with a smile, he explained that his family built our house and that he planted that very magnolia tree 40 years before, when his son was born. He was so happy to see us enjoying the tree that he could not help but stop.
I was so grateful to hear that story and know that our family’s favorite tree held such special meaning. Our enjoyment existed because of the joyous celebration of a new birth. That is why we plant trees. For the benefit of those yet unborn, to commemorate special moments, and to provide the very oxygen we breathe. As the Greek proverb goes, “Society grows great when old men plant trees whose shade they know they shall never sit in.”
January 19 is Florida’s Arbor Day, a time to celebrate the many benefits of trees, and the day is often celebrated by planting new trees. Winter is the best time of year to plant trees, as they are able to establish roots without competing with the energy needs of new branches and leaves that come along in springtime.
“The best time to plant a tree is twenty years ago. The second best time is now.” –Anonymous
Check with your local Extension offices, garden clubs, and municipalities to find out if there is an Arbor Day event near you! Several local agencies have joined forces to organize tree giveaway events in observance of Florida’s Arbor Day.
Escambia County:
Thursday, January 18:
Deadline for UF IFAS Extension/Escambia County’s second annual Arbor Day Mail Art Contest. To participate, mail a drawing, painting, or mixed media artwork with the theme, “Strong Trees, Strong Communities” to Arbor Day Art Contest c/o Escambia County Extension, 3740 Stefani Road, Cantonment, FL 32533. Please include your name, age, and contact information on the back of your artwork. Contest entries must arrive by mail or be dropped off by Jan. 18 and will be judged at the tree giveaway on Jan. 20 at Barrineau Park Community Center.
First place winners of the art contest will receive prizes including a seven-gallon tree, a shovel, and a tree book. Second place winners will receive a tree book and third place winners will receive gardening gloves. Categories include children (12-under), teen (13-18), and adult (over 18). All participants in attendance at the tree giveaway will receive a special edition Arbor Day water bottle featuring last year’s winning design.
Many communities plant trees to celebrate Arbor Day. Photo credit: Carrie Stevenson
Saturday, January 20th
Escambia County will hold their tree giveaway and public planting from 10 a.m. to noon Saturday, Jan. 20 at Barrineau Park Community Center, located at 6055 Barrineau Park Road, Molino. Support for the event is provided by the Florida Forest Service, Resource Management Services, and Escambia County UF-IFAS Extension. Each attendee will receive two free native 1-gallon trees. Species available include tulip poplar, Chickasaw plum, Shumard oak, and fringetree.
For more information about either Escambia event, contact Carrie Stevenson, Coastal Sustainability Agent III, UF IFAS Extension, at 850-475-5230 or ctsteven@ufl.edu.
Santa Rosa County:
Friday, January 19
10 am—Navarre Garden Club Arbor Day celebration. Foresters will give away 1-gallon containerized trees and conduct a have tree planting demo. 7254 Navarre Parkway, Navarre, 32566. For more information, contact Mary Salinas, 850-623-3868 or maryd@santarosa.fl.gov
Saturday, January 20th
10 am—Milton Garden Club Arbor Day celebration. Foresters will give away 1-gallon containerized trees and conduct a have tree planting demo. 5256 Alabama Street, Milton. For more information, contact Mary Salinas, 850-623-3868 or maryd@santarosa.fl.gov
Leon County:
Saturday, January 20th
9am to 12pm – City of Tallahassee/Leon County Arbor Day Celebration – Join City and County Staff, UF/IFAS Leon County Extension Faculty and Master Gardener volunteers at the Apalachee Regional Park (7550 Apalachee Pkwy) for a tree planting in honor of Arbor Day. Citizens are invited to come help plant hundreds of trees in the park and also learn about the benefits of trees, how to properly plant a tree, and after the planting is done, take a tree identification walk. For more information, contact Mindy Mohrman, City/County Urban Forester at 850.891.6415 or melinda.mohrman@talgov.com
