PP31431 Ever since Cornell published its cold hardy Agapanthus trials, we’ve been awaiting more mass market cold hardy varieties to emerge in the trade. This Walters Gardens introduction is hardy to zone 6, overwintering best in snowy winters. Large, 5’” pure white globular clusters open on tall stems and large, rounded clumps of foliage. Tall quart pot. This plant ships no sooner than mid-March.