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nancyk
June 23, 2017
by Beth Ellis - Victoria County Master Gardener
Edited by Charla Borchers Leon
This week's article on vines addresses what I call "the heavy hitters." These vines are strikingly lovely in form and sometimes fragrance, but homeowners should be aware they can be quite invasive and even cause damage to structures if not controlled. As a result, these plants aren't for the horticulturally faint of heart.
Real workhorses
This old southern favorite originates from China and is well known for its long purple bloom racemes in spring. It grows to 30 feet, requires full sun to flower and is not particular about soils. To control this rampant grower, cut back the previous year's growth by half in late winter, pruning again after spring flowering.
As invasive as the Chinese version, with both becoming heavy enough to collapse trellises and separate roofs from walls. Consider growing American wisteria (W. frutescens) instead, as it is a bit more tractable.
Native to the eastern United States, this spectacular vine does damage via aerial rootlets to house siding and shingles if not monitored. It grows to 35 feet, prefers full sun and is not particular about soils. During drought conditions, give it occasional deep watering.
Large reddish-orange, trumpet-shaped blooms appear during summer and attracts hummingbirds and sphinx moths. Keep this vine under control via mowing and pruning. A popular cultivar - Madame Galen - is theoretically less invasive.
This Texas native is delicate in appearance and won't damage your home, but it belongs here because once planted, you'll have it forever. I planted one Passiflora incarnata Incense years ago along my front fence, and it now pops up all over my property, ready to climb up any structure, tree or shrub it can wind itself around.
I don't mind because it draws Gulf fritillary, zebra longwing and hairstreak butterflies like crazy since it's a preferred larval host plant for those species.
This vine grows to 25 feet and requires little water. It takes both sun and shade but produces its exotic flowers best in sun. Although it freezes back, it is root hearty.
Be ready to pull volunteer vines on a regular basis and put up with occasional ragged leaves left by hungry butterfly caterpillars, which is a good trade-off given the butterflies it draws.
If there's a scent representative of the South, this has to be it. Not long after Southerners began planting this invasive East Asian native in their gardens, it escaped cultivation and can now be found blanketing fences, trees and abandoned structures in many parts of the United States.
Be ready to mow or pull volunteer vines, as it can overwhelm small trees and shrubs and escapes easily. This vine can grow as much as 80 feet or more. It flowers in spring, summer and sometimes fall, and requires little care other than plenty of sun to produce the most flowers.
Hailing from Mexico, this fast-growing but delicate-looking plant is another one you'll have forever after planting just once. In this area, it's seen scrambling over fences, trees, porches and just about anything else that can't get away.
It dies back in winter, but in spring, it quickly reappears in all its rampant glory. This vine grows to 40 feet, prefers full sun and isn't particular about soil or water. It is a favorite nectar source for bees and malachite butterflies.
Intrepid gardeners
While lovely to behold, the vines mentioned here aren't for the faint of heart as determined maintenance is required to keep them in bounds. But if the gardener is serious about exercising control of these vigorous growers, the results are well worth the beauty they will bring to the garden.
Workhorse vine options
The workhorse vines discussed in both last week's and this week's column provide various options in characteristics, bloom color and charm for the landscape. Some are mannerly while others are more wild if not tended to. All grow vigorously and freely when happy, but remember to maintain, prune and shape them to keep their growing structures happier - and you the happiest of all.
The Gardeners' Dirt is written by members of the Victoria County Master Gardener Association, an educational outreach of Texas A&M AgriLife Extension - Victoria County. Mail your questions in care of the Advocate, P.O. Box 1518, Victoria, TX 77901; or vcmga@vicad.com.
PHOTO CONTRIBUTED BY SHUTTERSTOCK.COM
Chinese Wisteria with its springtime long, purple bloom racemes can be quite striking in the landscape. Growing to 30 feet, it can become invasively heavy so much so that it can damage trellis structures and separate roofs from walls when growing on a building. It requires full sun to burst into bloom and needs to be cut back to half after winter and again after spring blooming to best control it.
PHOTO CONTRIBUTED BY WILDFLOWER.ORG
A vine with somewhat delicate-looking but beautiful, brightly-colored reddish-orange trumpet-shaped blooms that attract hummingbirds would not appear to be as destructive as it can be. The workhorse Trumpet Creeper can grow to 35 feet and can badly damage house siding and shingles by affixing its aerial rootlets. It prefers sun, has no preference to soil and needs deep watering only occasionally.
PHOTO CONTRIBUTED BY BETH ELLIS/VICTORIA COUNTY MASTER GARDENER
The native Purple Passionflower, once successfully planted, can remain in the landscape year after year and while it freezes back, it comes back. Its ability to climb on fences, trellises, trees and most any kind of structure it can find expands the likelihood for various butterflies in the garden as it is a larval host plant for Gulf Fritillaries and several others. It will grow in sun or shade but needs sunlight to produce its exotic purple blooms. It grows wildly to 25 feet but is not known to damage structures or homes.
PHOTO CONTRIBUTED BY SHUTTERSTOCK.COM
The Queen's Wreath or Coral Vine is known to spread across a garden with vigor via fences, gates, trees, porches and anything that gets in its way. Delicate in foliage and deep pink blooms, it will grow to 40 feet, appearing quickly after freezing back. It thrives in direct sun and is not fussy about soil or water requirements. Native to Mexico, it stays a good, long while once planted here.
Internet:
https://plants.ifas.ufl.edu/plant-directory
http://www.thegardenhelper.com
Print:
• Ajilvsgi, Geyata; 1990 "Butterfly Gardening for the South." Taylor Publishing Company.
• Bender, Steve and Felder Rushing; 1993 "Passalong Plants." The University of North Carolina Press.
• Loeb, Sarah Ruley and C.W. Carpenter; 1992 "The Garden Book for Corpus Christi and South Texas." Corpus Christi Area Garden Council Inc. Golden Banner Press.
• Welch, William C.; 1989 "Perennial Garden Color - Perennials, Cottage Gardens, Old Roses, and Companion Plants." Taylor Publishing Company.
• Welch, William C. and Greg Grant; 2011 "Heirloom Gardening in the South - Yesterday's Plants for Today's Gardens." Texas A&M University Press.
• Wisteria - Prune after winter, again after spring blooms to control vine
• Trumpet creeper - Trim to keep vines clear of damage to house siding, shingles
• Passionflower - Maintain vines so butterflies are attracted to this host plant
• Japanese honeysuckle - Mow, pull volunteer vines to prevent aggressive growth
• Queen's wreath - Prune volunteer vines to prevent takeover of trees, porches
ph: 361-935-1556
nancyk