大象传媒

	Plant list: Half-hardy perennials Half-hardy perennials are best brought into a frost-free place such as a greenhouse for the winter. Alternatively buy new plants each year.
	Penstemon Penstemon Perennial Half-hardy White, pink, red, mauve and purple Dark green 30cm to 90cm x 30cm to 90cm (1ft to 3ft x 1ft to 3ft) Penstemons are grown for their spikes of bell-shaped flowers and make a great splash of colour in the perennial border. They prefer a sunny spot and rich, well-drained soil. To prolong the flower show into autumn, deadhead regularly.
	Related plant lists: Hardy annuals Half-hardy annuals Biennials Hardy perennials Half-hardy perennials Deciduous plants Evergreen plants Trees Shrubs Bulbs Climbers