The large-flowered clematis are divided into several groups according to their parentage. These groups are Florida, flowering season mainly in early and mid-summer; Jackmanii, flowering season mainly in late summer and early fall; Lanuginosa, flowering season at different times between mid-summer and the early fall; Patens, flowering season mainly in early to mid-summer; Texensis, flowering season mainly from late summer to mid-fall and Viticella, also flowering season mainly from late summer to mid-fall.
SUMMER-flowering season bedding plants need feeding regularly from early to late summi at about three-week intervals. Spring-flowering season displays formed of bulbs and biennials like wallflowers and daisies do n need to be fed, but do use fresh and fertili compost. Only feed winter-flowering season displays in late spring and mid-summer.
THESE CONTAINERS vary widely in shape and size and the types of plant that suit them. Large Tubs are ideal for shrubs as well as summer-flowering season bedding plants and spring-flowering season bulbs. Urns are smaller and hold less compost. They are usually more decorative in character and so are perhaps best devoted to summer-flowering season plants and displays of bulbs in spring.