Big and bold and blue this remarkable plant known for its enormous pinnate foliage makes a statement. To 7′ tall and as wide in time. Following mild years madder red rubbery flower spikes bear black flowers. yep. Its very important to establish your Melianthus happily before its first winter. That means you give it rich, well drained soil in full sun with REGULAR summer water. The bigger the root system the more vigorous the plant will return if frozen to the ground (below 20ºF). Luckily in the city this usually happens every four years or so. In colder outlying areas plant it next to a hot south facing wall and nurture the hell out of it. Mulch before arctic episodes is a good thing. Moderate deer resistance. South Africa.