Here are some easy tips on how to grow Coreopsis plants: Loosen average, well-drained soil to a depth of 12-15 in. Add 2-4 in. compost. Dig a hole twice the diameter of the pot. The top of the root ball should be level with the soil. Fill in the hole and tamp down to eliminate air pockets. Water well. Space them 2-3 ft. apart, depending on variety.
Common Names: Tickseed; Calliopsis
Description: These dependable, colorful, easy-to-grow perennial plants have a long bloom time. The flowers are yellow or pink and they look like daisies. Coreopsis plants grow from 9 in. to 4 ft., depending on variety. The fruits are flat and look like bugs.
Origin: N. America; Central and South America
Propagation: Division every few years in spring
Sun/Light Needs: Full sun is best
USDA Hardiness Zones: 3-9
Fertilizer Needs: Generally none, once established. Too much fertilizer will make Tickseed plants too tall and floppy. Apply a thin layer (2 in.) of compost each spring.
Maintenance: Low. After the first killing frost, cut these perennial plants back to 1-2 in. above soil line.
Companion Plants: Coneflower, Lavender, and Salvia
Display: Borders, cutting gardens
Pests/Diseases: Coreopsis plants can have problems with snails, slugs, and fungal disease
Wildlife Value: Food source for moths and butterflies; tolerates dry soil (Xeriscape ready)