Tested on 10-06-20, 93% Germ. Zones 3,4,5,6,7,8,9,10 This variety is deer resistant, has charming white flowers and grows fast--in a variety of climates. Periwinkle flowers like well drained soil. They make for useful border plants, and excellent ground cover as they only grow up to 10 inches high. Spruce up boring looking pavers with these dwark white periwinkle flowers and you'll enjoy them all the way until fall in colder climates. Even longer in warmer ones! These are deer and rabbit resistant. Germination Instructions: Sow the seeds indoors cover the seeds with a quarter of an inch of soil as they need darkness to grow. Keep the seeds/soil moist during this time. Germination time takes up to 14 days. Once germinated plant in the full sun spacing them a little over a half of a foot apart.