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Biennials live for 2 years, whereas perennials live for longer. As a general rule, biennial and perennial seeds should be sown in spring, but some can be sown in autumn as well. Many varieties will self-seed after flowering, giving you even more plants!
Nepeta transcaucasica 'Blue Infinity'
Tall wands of violet-blue flowers in seemingly infinate quantity over a long period. With its characteristic aromatic fragrance it is extremely effective in the border, long-lived, easily grown and very reliable.
* Seed came to T&M under this name which is yet to be verified.More info
Macedonian Scabious, Scabiosa rumelica
One of the finest perennials for the border we have seen. It has a very long season of flowering lasting well into the autumn and early winter. The dense, double, pin cushion scabious like flowers are a brilliantly strong cherry red, a rare colour in border flowers. Makes a large, neat, rounded bushy plant producing many flowers which are excellent for cutting. Easy to grow and undemanding. Flowers summer/autumn. Height 90-120cm (3-4ft). More info
Knautia macedonica 'Melton Pastels'
Macedonian Scabious, Scabiosa rumelicaMore info
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