Flowers

All zones Alyssum, calendula, cineraria, cornflower, pansy, poppy, primula, statice, stock and viola.

Zones 2–6

Delphinium, foxglove, helichrysum, hollyhock, polyanthus, snapdragon, sweet pea and Virginia stock.

Zones 7–8

Candytuft, clarkia, impatiens, nasturtium, nemesia and, in tropical areas, petunia and phlox.