Threadleaf Coreopsis

Part of the You Can Learn Landscaping and Gardening series.
By Ken Brown
Editor, YouCanLearnSeries.com
Updated:
September 17, 2005

The Threadleaf Coreopsis produce blooms in early to late summer. It is also known as tickweed or tickseed. The flowers of the threadleaf coreopsis are normally yellow with a light brown center.

You should plant in full sun in well drained areas. They are hardy in hot dry areas and withstand poor soil conditions. They are native American wild-flowers.

Place these plants toward the front of the garden as they only grow to a height of 1 and a half feet. They grow to a width of 2 to 3 feet. When I first saw the plant, I was terribly disappointed. It looked like a scraggly weed. But once it came into bloom and the 5 plants I have filled in with flowers, the arrangement was stunning. Do not plant this perennial as one plant. It looks best as a grouping of at least three or four.

Though they withstand dry summer heat, water if they begin to wilt. If you water the threadleaf coreopsis too much, then it will become overly vigorous and it won't flower as much. It is best to not baby the plant. Don't fertilize it or add special amendments to the soil. Just plant and add mulch.

Plant in full sun and with other plants requiring little water such as coneflowers and russian sage. To keep it flowering all summer long you can deadhead the flowers. If you choose to make home bouquets with them then you won't have to deadhead.
Perennial Full sun
flowers attract butterflies Requires little care
Grows 1 to 2 feet high Grows 2 to 3 feet wide
Flowers in summer Flowers in yellow with tan centers

Click on Threadleaf Coreopsis photo to see larger photo.
Threadleaf Coreopsis tolerates full sun and dry conditions.
Threadleaf Coreopsis provides a lush yellow bouquet that works as a border plant.


The Threadleaf Coreopsis grows in full sun and can produce plants from 1 to 2 feet tall. The flowers normally bloom yellow and are in full bloom throughout the summer. It makes an excellent border plant.

They are long stemmed flowers and transition nicely as cut flowers.


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