Coreopsis verticillata 'Zagreb' ~ Zagreb Threadleaf Tickseed

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Zagreb Threadleaf Tickseed is a compact clumping perennial with narrow palmate deep green foliage. Its bright yellow daisy-like flowers with untoothed petals and darker yellow disk s bloom from late spring into summer. Prompt deadheading can prevent spread and encourage additional bloom in fall. Prefers full sun and dry to medium well-drained soil. Drought, humidity, and road salt tolerance. Zagreb will spread aggressively in moist soils. Type: Perennial Origins: Southeast N. America; GA Native Height: 1' - 1.5' Spread: 1’ - 1.5' Spacing: 1’ USDA Hardiness Zone: 3 - 9 Culture: Full Sun, Part Sun Bloom Color: Yellow Season of Interest: Spring, Summer, Fall MAINTENANCE NEEDS: Low Maintenance. Can be an aggressive self-seeder- deadhead in spring to encourage extended bloom and prevent spreading. Crown rot may occur in moist, poorly-drained soils. Foliage decline may occur in hot summers if the soil is allowed to dry out. Snails and slugs can be a problem. LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Naturalized Areas, Rock Gardens, Foundational Plantings, and Containers. COMPANION PLANTS: Switch Grass, Coneflower, Avens IMAGES: Photo by Leonora (Ellie) Enking, Coreopsis verticillata 'Zagreb', (2) photoset by Andrey Zharkikh, (1) 2012.08.20_18.19.22_CIMG1212, (2) 2012.08.20_18.19.00_CIMG1211, (3) photoset by F. D. Richards, Coreopsis verticillata 'Zagreb', 2015 (1)+(2) *As plants have ranges in appearance they may not appear as the images shown. Show more