Coreopsis 'Zagreb' is a tough drought-tolerant herbaceous perennial. A compact coreopsis with vivid, bright golden-yellow single flowers and very fine, thread-like foliage. Free-blooming from early summer through fall with good heat and drought tolerance. Thrives in full sun with average to poor, well-drained soil. Extremely drought tolerant once established. Deadhead regularly to extend the very long bloom season. A workhorse perennial for sunny borders, meadow gardens, and pollinator plantings where continuous color from early summer through frost is essential.