These elegant half-hardy annuals grow well in any light soil, but prefer a mixture of sandy loam and leaf-mould. Sow the seed in March or April in slight heat, harden off, and plant out in May as soon as all fear of frost is over. They flower in July.

The nierembergia (cup flowers) grows to a height of 9 in. to 1 ft.

Plant classification : Half-hardy, Annual, Bears Flowers