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Forget-me-not Saxifrage-like Tunica Oenothera biennis Viola canadensis Evening Primrose Canadian Violet Phlox divaricata Viola canina Wild Sweet William Dog-tooth Violet D. Perennials for Long Flowering Period. Not only are peren-nials selected because of the colours of the flowers and other character-istics such as good blooming combinations, perpetual bloom, and goodflowers, as shown in the following groups, but many times certaintypes are selected because of their long blooming period. Such plantsas the yellow marguerite, the Shasta daisy, the blanket flower, andcertain hardy phloxes, are very valuable in the garden because theyproduce flowers over a long blooming period, extending in instances forthree or four weeks. Some of these plants require cutting back, likethe larkspurs and nettle-leaved mulleins, thus causing them to pro-duce a second crop of bloom. They are all useful to insure a bridgingof the gaps between the flowering period of other sorts or to plant inthose places where only one, or at most a few sorts, can be used. The |
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