The solitary daisy-like golden yellow flowers emerge from slender, erect stems.
It is planted in the spring and has a moderate growth rate.
Coreopsis Lanceolata Care
While allcoreopsis speciesrequire little care, lanceleaf coreopsis is especially easy to care for.
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You dont have to worry about drought and deer because it is resistant to both.
Light
Coreopsis lanceolatashould get full sun to thrive.
Lack of light leads to scraggly growth and reduced bloom.
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Soil
The plant is very adaptable, as long as the soil has excellent drainage.
It can grow in dry soil as well as shallow, rocky, and poor soil.
Water
New plants, or divided plants, should be watered until they are established.
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Once you know its established, you dont need to giveCoreopsis lanceolataextra water in dry spells.
Fertilizer
Unless you plantedCoreopsis lanceolatain extremely nutrient-deprived soil, you dont need to fertilize it.
It grows well in poor soil.
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Types of Coreopsis Lanceolata
C. lanceolataandC.
If the plant looks a little scraggly in mid-summer, cut it back slightly to encourage more compact growth.
If not divided,Coreopsis lanceolatawont live very long.
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Dividing the plant is also an easy way to propagate it.
The best time to do that is in the early spring.
It often reseeds itself to form large, naturalized colonies.
Coreopsis lanceolata ‘Sterntaler’Helena Bezold / Getty Images
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Potting and Repotting Coreopsis Lanceolata
The plant is suitable for container growing.
The container should be large enough to allow the fibrousrhizomesroot system to multiply freely.
Divide and repot the plant in fresh potting mix when the roots have filled the pot.
Pearl crescent butterfly on lanceleaf coreopsisCassieB03 / Getty Images
Unlike in-ground plants, potted coreopsis needs regular watering because potting soil dries out much faster than garden soil.
Leave the foliage on the plant and clean it up in the spring.
A commonly found but harmless disease ispowdery mildew.
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Potential, but rather rare diseases, include botrytis blight, bacterial and fungal leaf spots, andaster yellows.
But if it fails to bloom, the cause in most cases is lack of sun.
Although it can tolerate some shade, it does best in full sun.
The plant can also reseed quite aggressively, which can become a problem if its competing with other plants.
The plant spreads not by vegetative growth but by reseeding itself.
If you dont want it to spread, remove the spent flowerheads before they turn into seeds.
Coreopsis goes dormant in the winter and all the aboveground parts die back and shrivel.
It is native to the United States and thus not invasive, but it is invasive in Asia.
Coreopsis lanceolata.North Carolina State Extension Plant Toolbox
Coreopsis lanceolata.
Invasive Species of Japan.
