Variegated String of Buttons (Crassula perforata f. variegata) (Thunberg): One of the best-loved stacked Crassula species with alternating, triangular leaves of pale green and cream variegation. It is native to South Africa where it grows among rocks and in the crevices of cliffsides and blooms from midsummer to fall. When grown in full sun, the edges can take on a rosy pink blush. It branches freely, growing up to 10.0" tall in cultivation for a nice spilling effect in arrangements. 

Soft succulents will not survive a hard frost, but if there is a risk of freezing temperatures they can be brought indoors to grow on a sunny window sill or under a grow light. They need bright sunlight, great drainage, and infrequent water to prevent rot.

-----------------------