The types of plants adapted for this purpose are usually selectedbecause of well-defined characteristics such as:
(a) Long flowering period and abundance of bloom.
(b) Compact habit of growth.
(c) Ability to thrive under crowded conditions.
(d) Ability to respond to frequent and severe cutting back.
(e) Interesting colour and texture of foliage.
a. Low-growing plants from two to six inches tall:
I. Foliage plants:
Alyssum maritimum variegatum Sempervivum arachnoideum (in variety)
Variegated-leaved Sweet Alyssum Spiderweb Houseleek
Echeveria atropurpurea Sempervivum calcareum