cypress spurge Euphorbia cyparissias Type:groundcoverperennials Notable Traits:fast-growinggreen roof plantslow-maintenanceresistant: deerresistant: diseaseresistant: rabbitstriking foliagetolerates clay soiltolerates harsh roadside conditionstrailing habit Hardiness:Zone 4 – 8 Mature Height:8-12in Light:part sun/afternoon shade (eastern exposure)part to full sun (6 hours or more sun)sun (8+ hrs) Water:drought tolerant once established Bloom Color:yellow Bloom Shape:flathead Bloom Time:spring Foliage:bluegreen Description Narrow blue-green foliage resembles spruce or cypress and spreads by rhizome to form a low, drought tolerant ground cover. Tiny yellow flowers appear in umbel clusters in spring. Like other euphorbias, stems and leaves contain a milky sap.