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Vines, Vines, Vines:  What’s Growing Up My Trees?

Vines, Vines, Vines: What’s Growing Up My Trees?

We work very hard to maintain our gardens and then we look up and vines are growing 20′ into the trees.  I get asked frequently “what is growing up my trees?” My first answer is “probably the same things growing on your fences.”  These include Smilax species, commonly called catbrier or greenbrier, Vitis rotundifolia, referred to as wild muscadine grape, Parthenocissus quinquefolia or Virginia Creeper, and the one to be most careful with, Toxicodendron radicans, known by many as Poison Ivy.

Smilax Vine

Spring growth on the Smilax vine.

Smilax is a native vine that grows quickly in spring and all summer.  There are 12 species in Florida and 9 species commonly found in the Panhandle.  Besides being armed with thorns on their stems and some leaves, Smilax spreads by underground stems called rhizomes.  If you choose to ignore it, some species can cover your trees and the stems become woody and hard to remove.  This vine also produces fruit and seeds are dispersed by birds all while the underground rhizomes are spreading under your lawns and gardens.

Smilax Vine on Tree Trunk

Smilax can quickly cover a tree trunk.

Removal can be difficult and mowing the vines only encourages more growth.  When trying to remove by hand, wear heavy leather gloves and some eye protection because of the thorns.  Cut the stems about three feet above the ground which allows you some stem to pull on to bring it out of your tree.  You also then have a handle to pull and try to remove some of the rhizome from underground.  Digging rhizomes is time consuming, but gives you piece of mind that they won’t come back immediately.  Our family actually harvests the new shoots in spring and we use them like asparagus.

Wild muscadine grape is also native and difficult to remove.  Most of the vines in nature are male and only produce by runners along the ground and then grow upwards.  The female vine can produce 4-10 grapes in a cluster and then reseeds itself.

Muscadine on a fence.

Wild muscadine grape covering a fence.

Wild grape completely covers plants and eventually the plants underneath can die.  There are no thorns to contend with when removing wild grape, it is just time consuming, especially if it has taken over your fence or natural areas.

Virginia Creeper is a native vine, still considered a nursery plant in some areas of the country, and has bright red fall color.

Virginia Creeper

Virginia Creeper climbing a tree trunk.

It is most often confused with poison ivy because of having five leaflets per leaf whereas poison ivy only has three leaflets per leaf.  It spreads by seeds, runs along the ground, and is the easiest of these four vines to remove from your property.

Poison Ivy is a native vine distinguished by its three leaflets with the individual leaflets getting up to 6″ long.  This vine spreads by seeds and underground rhizomes.  What makes removal of this vine difficult is the urushiol oils which causes the skin rashes and blistering.

Poison Ivy

Poison ivy covering a tree trunk.

Care must be taken to cover up all skin and I recommend wearing waterproof clothes versus cotton which can absorb the oils and transfer them to your skin.  Under no circumstances should these vines be put on the burn pile, the oils can become airborne and then you can inhale them.

Here are a few helpful tips when battling these native vines.  First have patience and be dedicated, this removal will not happen over night.  It may take a year or two to rid your property of the original vines.  Be diligent though, because birds will continually land in your trees and deposit more seeds to get a fresh start.  Try to remove vines when they are young and just beginning to climb your trees and fences.  If you know you don’t have the time or energy to remove the vines from all your trees, at least cut the vines close to the ground to reduce flowering and new seeds.  Be careful with poison ivy because falling leaves still contain oils.  Once the vines start to have a new flush of growth, spray a non-selective herbicide on new growth and you should have good results.  Lastly, remember one person can make a difference in trying to reduce the number of nuisance vines in our communities.

Here are some sited references to help with your removal tasks.  Key to Nine Common Smilax Species of Florida. https://edis.ifas.ufl.edu/publication/fr375.  Smilax is a Vine that can be Difficult to Control. http://blogs.ifas.ufl.edu/wakullaco/2017/04/21/smilax-is-a-vine-that-can-be-difficult-to-control/.  The Muscadine Grape (Vitus rotundifolia Michx.)  https://edis.ifas.ufl.edu/publication/hs100.  Muscadine Grape Vines: Difficult to Control in Your Landscape. http://blogs.ifas.ufl.edu/wakullaco/2017/03/24/muscadine-grape-vines-difficult-to-control-in-your-landscape/.  Parthenocissus quinquefolia: Virginia Creeper https://edis.ifas.ufl.edu/publication/fp454.  Identification of Poison Ivy, Poison Oak, Poison Sumac, and Poisonwood. https://edis.ifas.ufl.edu/publication/EP220.

Ginger Lily Adds Fragrance and a Tropical Flair to North Florida Gardens

Ginger Lily Adds Fragrance and a Tropical Flair to North Florida Gardens

‘Disney’ scarlet ginger lily produces beautiful orange flower clusters atop stems growing up to 7 feet in height

If you’re looking for colorful flowers with superpowered fragrance, look no farther than ginger lily (Hedychium sp.). This group of plants packs a punch with big, bright flowers, intoxicating fragrance and bold tropical foliage, all in a robust herbaceous perennial that is perfectly hardy in north Florida.

Ginger lilies are tropical and subtropical plants in the Zingiberaceae (Ginger) Family. They produce fragrant, colorful, complex flowers and often other plant parts also are aromatic. Ginger lily flowers appear in racemes or spikes at the tops of cane-like stems 4 to 6 feet or more in height. Flowering summer until frost, the clumps of upright stems grow from thick rhizomes that creep underground just below the soil surface. Native to Asia and related to the spice, true ginger (Zingiber officinale), ginger lilies will add color, fragrance and a tropical vibe to your home garden.

Ginger lilies grow best in full to part sun in rich, moist, well-drained soil. New stems emerge in late spring and quickly grow into upright stems with long, bold-textured leaves held horizontally or angled upright. The cane-like stems are topped with clusters of large, bright colored flowers starting in late spring to mid summer, often continuing through fall. Frosts or freezes will kill the above-ground stems, but rhizomes easily overwinter temperatures as low as 0°F (making them hardy into USDA Cold Hardiness Zone 7b) and produce new growth in late spring once warm weather resumes. Few pests or diseases affect ginger lily, and the only regular maintenance is to cut and remove the dead stems in late winter before new growth emerges.

Butterfly ginger is the type most widely grown and frequently shared as a pass-along plant. Butterfly ginger (Hedychium coronarium) is grown for its large fragrant white flowers. It grows 4 to 5 feet high and begins flowering in mid to late summer, continuing through fall. With a heavy sweet fragrance, a flowering clump of butterfly ginger smells heavenly in the garden and, as a cut flower, will easily perfume a large room! Butterfly ginger is not picky about growing conditions but prefers moist, good garden soil. This is the ginger flower most often used to make Hawaiian leis!

There are dozens of species and cultivars of Hedychium. Some of the ginger lilies that are often found in local nurseries or Master Gardener plant sales are listed below.

‘Dr. Moy’ variegated ginger lily (Hedychium ‘Dr. Moy’) is distinguished by white paint-like splashes on its leaves and fragrant, peachy-orange flowers. ‘Dr. Moy’ produces its first round of flowers from mid-July to August and a second crop in late-September to October.

‘Daniel Weeks’ ginger lily (Hedychium ‘Daniel Weeks’) is a perennial tropical ginger hybrid from Florida’s Russell Adams with hardiness to Zone 7. Growing to 6 to 7 feet high, it produces large dark throated golden-yellow inflorescences with the bonus of delightful evening fragrance. This vigorous clumping hardy ginger lily is the longest blooming, starting in early to mid summer and continuing to frost. It is considered by many as one of the best of all ginger lilies.

‘Disney’ scarlet ginger lily (Hedychium coccineum ‘Disney’) produces large, bright orange flower clusters on tall stems up to 7 feet in height. Foliage is very glossy with a reddish hue, and the overall effect of the clump of stems is very upright. Typically, all stems flower at the same time followed by a resting period before flowering again.

‘Pink Sparks’ ginger lily (Hedychium ‘Pink Sparks’) is a compact variety only growing 4 to 5 feet high. Terminal inflorescences are made up of many small bright pink flowers with very long stamens.

Ginger lily may be propagated by digging and dividing clumps or by cutting off sections of rhizome (making sure each section has at least one bud) and placing these in new locations for sprouting and growth. It’s best to divide or propagate plants before late summer so divisions have enough time to develop a new root system and/or stems before the cooler weather of fall slows growth.

References

Carey, Dennis and Tony Avent. 2010. Hedychium – A Hardy Ginger Plant for the Garden. Plant Delights Nursery, Inc., Raleigh, NC 27603. https://www.plantdelights.com/blogs/articles/ginger-plant-lily-variegated-hedychium-lilies. Accessed 9 June 2021.

Gilman, Edward F. 2015. Hedychium coronarium Butterfly Ginger, FPS-240. Environmental Horticulture Department, UF/IFAS Extension, Gainesville, FL 32611. Original publication date October 1999. Reviewed February 2014. FPS-240/FP240: Hedychium coronarium Butterfly Ginger (ufl.edu). Accessed 9 June 2021.

Video: Cold Weather Damage Plant Care

Video: Cold Weather Damage Plant Care

The North Florida garden has experienced some cold weather damage and even though you want to start pruning back your perennials, now is not the time. Many damaged plant stems protect perennials that return from the roots. Learn about care of cold damaged plants with UF IFAS Extension Escambia County In the Garden. #colddamage #coldprotections

Video: Stevia, As Sweet as Can Be

Video: Stevia, As Sweet as Can Be

Stevia grows well when planted in the ground or in a container. Learn basic care in the garden and how to use fresh leaves to sweeten your next dish or drink with UF IFAS Extension Escambia County’s Garden to Table segment.

Aphids & Milkweed

Aphids & Milkweed

Perennial milkweed, Asclepias perennis, with oleander aphids; notice the brown aphid mummies that have been parasitized. Photo credit: Mary Salinas UF/IFAS Extension.

Milkweeds are appreciated for their beauty, but often we cultivate it for the benefit of the monarch butterflies who lay their eggs only on this plant genus. Avid butterfly gardeners want the monarch caterpillars to eat up the milkweed and become beautiful butterflies. Often instead, thousands of aphids show up and compete for space on the plants. These bright yellow aphids are known as oleander aphids.

Just how do aphids build up their populations so quickly? It seems that one day you have a small number on a few plants and then a few days later, thousands are all over your milkweed. Oleander aphids have a few advantages for quickly building their populations:

  • All oleander aphids are female and do not need to mate to produce their young
  • Aphids give birth to live young who immediately start feeding on the plant
  • Aphids start reproducing when they are 4 to 10 days old and keep reproducing during their one-month life span
  • When populations get heavy or the plant starts to decline, winged individuals are produced to migrate to new areas and plants.

Parasitic wasp and aphid mummies. Photo credit: University of California.

 

What can or should you do to control this pest?

One option is to do nothing and let the natural enemies come in and do their job. One of the best is a very tiny wasp that you will likely never see. This parasitoid lays its eggs only inside aphids. The wasp larva feeds on the inside of the aphid and turns it into a round brown ‘mummy’ and then emerges when mature by making a round hole in the top of the aphid. Look closely with a hand lens at some of those brown aphids on your milkweed and you can see this amazing process. Another common predator I see in my own garden is the larvae of the hover fly or syrphid fly. You will have to look hard to see it, but it is usually there.  Assassin bugs and lady beetles also commonly feed on aphids. The larvae of lady beetles look nothing like the adults but also are voracious predators of aphids – check out what they look like.

Lady beetle larva feeding on aphid on tobacco. Photo credit:
Lenny Wells University of Georgia Bugwood.org.

If you think your situation requires some sort of intervention to control the aphids, first check carefully for monarch eggs and caterpillars, keeping in mind that some may be very small. Remove them, shoo away any beneficial insects, and spray the plant completely with an insecticidal soap product. Recipes that call for dish detergents may harm the waxy coating on the leaves and should be avoided. The solution must contact the insect to kill it. Always follow the label instructions. Soap will also kill the natural enemies if they are contacted. One exception is the developing wasp in the aphid mummies – fortunately, they are protected inside as the soap does not penetrate. Oils derived from plants or petroleum can serve the same purpose as the insecticidal soap.

Syrphid fly larva and oleander aphids. Photo credit: Lyle Buss, University of Florida.

You also can squish the aphids with your fingers and then rinse them off the plant. If you only rinse them off, the little pests can often just crawl back onto the plant.

There are systemic insecticides, like neonicotinoids, that are taken up by plant roots and kill aphids when they start feeding on the plants. However, those products also kill monarch caterpillars munching on the plant and harm adult butterflies, bees, and other pollinators feeding on the nectar. So those products are not an option. Always read the product label as many pesticides are prohibited by law from being applied to blooming plants as pollinators can be harmed.

In the end, consider tolerating some aphids and avoid insecticide use in landscape.

Happy butterfly gardening!

Video: Gardening in Small Spaces

Video: Gardening in Small Spaces

You don’t have to huge open spaces to garden. Master Gardener, Muriel Turner shares how she gardens in small spaces in containers or small beds along structures and pathways around her home. She combines herbs, okra, blueberries, and citrus along with ornamental succulent and flowering plants to adorn her home and flavor the meals she prepares for her family and friends.

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