Coreopsis verticillata – Threadleaf Coreopsis
Threadleaf Coreopsis, Tickseed
Planted, in 2006, next to bird feeder and also in open forest
Family: Asteraceae
Genus: Coreopsis
Species: verticillata
Type: Perennial
Height: 18-24 in. (45-60 cm)
Spacing: 18-24 in. (45-60 cm)
Hardiness: USDA Zone 4a to -34.4 °C (-30 °F)
Sun Exposure: Full Sun
Bloom Color: Bright Yellow
Foliage: Herbaceous
Soil pH from: 6.1 to 6.5 (mildly acidic)
Soil pH to: 7.6 to 8.0 (alkaline)
Propagation Methods: By dividing the rootball From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed: Allow seedheads to dry on plants; remove and collect seeds Properly cleaned, seed can be successfully stored
Otherdetails: May be a noxious weed or invasive This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Self-sows freely; deadhead if you do not want volunteer seedlings next season
Planted: 2006
Updated: 2008
