Is Lewisia a Perennial?

Lewisia cotyledon is an evergreen perennial of incredible beauty and well-balanced proportions. Fleshy leaves emerge in flat rosettes of spoon-shaped dark green leaves. Funnel-shaped flowers to 1 inch across are borne in compact panicles.

How do you overwinter Lewisia?

Detach offsets and plant them in a mixture of equal parts (by volume) peat and sand in half pots (pans) and place them in a cold frame. When rooted, pot into 75mm (3") pots of potting compost. Overwinter them in a frost free coldframe until planting out time.

Will Lewisia spread?

Lewisia are herbaceous or evergreen perennial plants that are native to western America. ... Lewisia are best suited as patio and container plants within rock gardens. You should expect to see Lewisia grow to an approximate height and spread of 50cm (20”).