Threadleaf Coreopsis, Tickseed
Find out how to maintain tickseeds.
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Plant type: Herbaceous perennial
Hardiness: USDA Zones 3 to 9
One of the easiest perennials to grow. Delicate, daisy-like flowers complement fine-textured green foliage on this herbaceous perennial. Blooms, about the size of a nickel, come in a variety of yellows; breeders have produced pink and red bloom colors too. Tickseed starts flowering in June and lasts through frost; blooms surge throughout the summer and fall. This perennial is a low-maintenance plant, requiring very little care once established. Plant size ranges from 16 to 24 inches tall and 15 to 18 inches wide, depending on cultivar.
How to use it: In masses (use at least three or five plants in a grouping), as a specimen plant or in containers. Use in a mixed perennial border. Good contrast to bold-textured foliage plants, such as canna. Cutflower.
Culture: Prefers a well-drained site and is often easy to grow in less than ideal soils. Plant in full sun to light shade. Can be planted from spring up to a month before a killing frost. Benefits by periodic deadheading and division every three to five years. Propagated through division, seed, or cuttings; some cultivars, like 'Moonbeam', are difficult to propagate through seed. No serious pest or disease problems; can have slugs, snails, and fungal problems, particularly if overwatered.
Special notes: Valued for its low maintenance, yellow blooms all summer long and fine texture. Attracts wildlife, including bees, butterflies and birds.
Follow these instructions on how to divide irises and develop new varieties.