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Heartleaf Skullcap is beautiful addition to your garden
June 21, 2019
By Phyllis Elmore - Victoria County Master Gardener Intern
Edited by Charla Borchers Leon
PHOTO CONTRIBUTED BY VICTORIA COUNTY MASTER GARDENER
While the Heartleaf Skullcap reembles Salvia (sage) i nsome of its growing characteristics and has some similarities in appearance-and is related to it, it should not be confused with it. Both in the mint family, Salvia comes in various sizes and bloom colors on spikes, while Skullcap is low-growing and has blue-purple blooms resembling a medieval skullcap on stems like shown here. Both are heat tolerant, but the Salvia thrives throughout the summer while the Skullcap goes dormant. Both have herbal-even medicinal-uses, but are used for different symptoms and in varying degrees.
PHOTO CONTRIBUTED BY SUZANNE LABRECQUE/VICTORIA COUNTY MASTER GARDENER
Dramatic spires of blue-green stems with bluish-purple blooms were prevalent in the xeriscape garden at Victoria Educational Gardens (VEG) at Victoria Regional Airport several weeks ago. Heartleaf Skullcap does not like severe heat; it will go dormant and return in the fall when temperatures are cooler.
PHOTO CONTRIBUTED BY PHYLLIS ELMORE/VICTORIA COUNTY MASTER GARDENER INTERN
Contrary to its name, the Heartleaf Skullcap is a beautiful, spring- and early summer-blooming perennial that is native to Texas.
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PHOTO CONTRIBUTED BY LADYBIRD JOHNSON WILDFLOWER CENTER
Velvety blue-green foliage and light to dark blue-purple blooms like shown up-close here give the impression of a delicate plant. To the contrary, Skullcap is tough and hardy, that when in bloom, adds color to a bed or container setting and attracts pollinators while needing little care. Part of the bloom resembles a medieval knight's headgear like shown center front and which helps explain its common name.
What’s in a name? To quote William Shakespeare, “That which we call a rose by any other name would smell as sweet.” Well, Bill, I’m not so sure about that.
Did you know that there are several scary plant names? First of all is the corpse flower. Secondly, there is a bleeding tooth fungus. Yuck! Next, we have deadly nightshade, bleeding hearts, brain cactus and devil’s claw. None of these plant names invite you to stop and smell the flowers, but you need not be frightened.
Lastly, we have today’s topic, the heartleaf skullcap. What’s that, you say? I am so glad you asked.
Don’t get me started on hearts. We all know that our hardest working muscle does not resemble the Valentine’s Day symbol or that cute little emoji some of us use, but there are many plants that include “heart leaf” in their common name.
There is a heart leaf philodendron, heart leaf brunnera, heart leaf begonia, heart leaf ice plant and a heart leaf foam flower.
Now about that name – the first thing that comes to my mind is a motorcyclist’s do-rag. That is dangerous and scary. How does this relate to this plant? Something that only bikers will cultivate? No, no, no. That is not it at all. Part of the bloom resembles a medieval knight’s headgear; hence, the skullcap moniker.
Heartleaf skullcap’s official scientific name is Scutellaria ovata. It is native to Texas, and it can be found as far north as Minnesota and as far south as Florida. It can grow from Kansas to the Atlantic Ocean.
This plant can be found here blooming in spring and early summer. It does not like the heat. So, we won’t be seeing it much longer during our hot weather. It will go dormant and reappear in the fall.
The heartleaf skullcap is a member of the mint family. Beware – just as mint can be invasive, the heartleaf skullcap is an opportunist as well. If you don’t want it to take over your entire flower bed, plan accordingly. Put up a border. Plant it in a container or remove the overgrowth.
This plant looks delicate but is a hardy perennial. The foliage is velvety blue-green with bluish-purple blooms. Sometimes, it is a challenge to include blue flowers in your garden. Who doesn’t want more blue flowers?
Distinct from salvia, heartleaf skullcap can be confused with salvia as they are related. The leaves are oily, making it deer resistant. Deer don’t want to eat it.
It is drought tolerant and great for low-water areas. It also will survive cold temperatures.
Heartleaf skullcap prefers partial sunlight, although it flourishes in full sunlight in the xeriscape garden at Victoria Educational Gardens. This low-growing, low-maintenance plant makes an excellent groundcover. It attracts bees and hummingbirds because of its nectar. We all should provide more food for our bee population. Who doesn’t want bees and hummingbirds to visit their garden? Yes, please.
Heartleaf skullcap prefers well-drained, sandy soil. While it will grow in a bed in full sunlight, it can be used in a rock garden.
You can propagate it by seed, transplanting clumps or planting the roots. It does not grow above 18 inches tall. The individual plants are about 15 inches in diameter.
In addition to its beauty, heartleaf skullcap is known to be an herbal medicine. The leaves have been used for centuries as a mild relaxant for treatment of anxiety. It also is said to have powerful antioxidant properties that may lessen food allergies and may help with Alzheimer’s and Parkinson’s disease. Before you go chewing on the leaves, please check with your health care provider.
There is another herb, Chinese skullcap, with a similar name and uses.
Do not confuse heartleaf skullcap with the Chinese skullcap, Sculletaria baicalensis, which is native to China with research indicating it has been used to treat inflammation, insomnia, hepatitis, epilepsy, atherosclerosis and some cancer.
Don’t be afraid to cultivate the multi-faceted heartleaf skullcap. This delicate, wispy plant is easily grown. As long as you don’t overwater it or give up on it during the hotter months, you will find it a welcome addition to your garden, despite its somewhat scary name.
What’s in a name? The name may be misleading. However, heartleaf skullcap may become one of your favorite plants. I encourage you to give it a try.
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, or comment on this column at VictoriaAdvocate.com.
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