Snow Cap Arabis flower garden seeds. Perennial flower. 2nd Year Maturity. Snow Cap Arabis flower seeds promise dense and elegant full-season blooming to your garden when others can not. Arabis flower seeds grow vigorous, hardy mounds that thrive in a wide range of hot and arid North American gardens. Snow Cap seeds mature into a tidy and convenient 4-6 inch tall Arabis boasting delightful ½ inch blooms in a classic spread of alpine white. Snow Cap Arabis seeds are an ideal grow in the back of the garden or a decorative planter up on the patio or to brighten up any drab room.