WHAT NOT TO PLANT!

■ Tender summer bulbs such as cannas, dahlias, begonias, eucomis or zantedeschia

■ Tender exotics such as colocasia, aloes or tree ferns

■ Summer bedding such as pelargoniums, petunias or lobelia.

■ Half-hardy annuals such as cleome, zinnias and cosmos – sow these in late spring.