Thread-leaved tickseed (Corepsis verticillata ‘Zagreb') kor-ee-OP-sis ver-tiss-ill-LAY-tah Genus:  Coreopsis

'Zagreb' produces star-like blossoms in egg-yolk yellow in early summer on plants 12 inches tall and wide. The sturdy, upright stems and finely textured foliage add delicate texture to the garden.

Noteworthy Characteristics: 

Looks good in drifts; site next to plants with contrasting foliage.

Care: 

Generally, grow coreopsis in well-drained soil in full sun or partial shade. Deadhead in midsummer to encourage rebloom and to prevent self-sowing. It is tolerant of a variety of soils. It thrives on poor soils and is tolerant of heat, humidity, and drought. 

Propagation: 

Sow seed indoors in mid- to late winter at 55° to 61° F; divide in early spring.

Problems: 

Slugs, snails, bacterial spot, rust, Botrytis flower blight, aster yellows, powdery mildew, downy mildew, and fungal spots.

Overview

Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Spreads Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Dry to Medium Maintenance Moderate Characteristics Attracts Bees, Attracts Butterflies, Native, Self Seeds, Showy Flowers Bloom Time Early Summer, Summer Flower Color Yellow Uses Beds and Borders, Ground Covers Style Cottage Garden Seasonal Interest Spring Interest Tolerance Drought Tolerant Type Perennials