Tulipa greigii 'Calypso' (1992) is a reliably perennial Greigii tulip, just 12 inches tall, with decorative stippled leaves and large orange-red flowers rimmed in primrose yellow with a black base. Greigii tulips are unique—every cultivar has variegated foliage, providing interest before and after bloom. Early to mid-spring flowering.
Full sun to part shade in fertile, well-drained soil. Plant bulbs 6-8 inches deep in fall. Zones warmer than 8 need 8-10 weeks cold treatment (40-45°F). Containers or raised beds for poor drainage.
Allow foliage to die back naturally. Lift bulbs in summer, remove offsets, replant in fall with low-nitrogen fertilizer. Protect from rodents and excess moisture.
Bulb rot, gray mold, slugs, snails, aphids, nematodes, voles. Good drainage essential.
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