Silver Sea Holly is a fantastic variation of eryngium planum. It has a silver colour rather then your commonly seen blue. Butterflies are highly attracted to sea holly & will bring live & colour to your garden. Silver sea holly works best along side other eryngium planum on borders, with the correct colour choice these can make fantastic combinations. They can tolerate high heat & light droughts. Silver Sea Holly has a irregular germination time & can take between a week & three months. SOWING: Season: Perennial Plant Height: 48 in (120 cm) Bloom: June - August Environment: Full sun Germination Time: 7-90 days Seeds Watering: Moist Depth: Lightly covered Plant Spread: 18 inch (45 cm) Hardiness: Hardy Other:: Drought tolerant Ideal for: Cut flower, Butterflies Silver Sea Holly - 80 Seeds Eryngium Planum