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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!
Rock Rose, Sun RoseMore info
Stock 'Dwarf Mixed' (Brompton Stocks)
Matthiola incana, Gillyflower
Upright bushy, early flowering biennials producing gloriously scented flowers in a good colour range which are splendid for cutting. Flowers early summer. Height 18in. More info
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