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The Illustrated Encyclopedia of Perennials: A Unique Reference Guide to More ...
No preview available - 1999
3ft lm 9 Propagation acidic alkaline autumn or spring basal cuttings blue bracts Bulbous Campanulaceae Common name corymbs cultivar cymes dark green deep disc florets early autumn early summer evergreen fertile Hardiness Flowers in racemes Flowers solitary foliage Full or half Full sun Soil garden genus Geraniaceae gray-green ground cover hairy half shade Soil humus-rich Hardiness Indefinite Aspect Iridaceae Iris l0in Labiatae/Lamiaceae late spring late summer leaflets Leaves basal Leaves lance-shaped Leaves linear Leaves ovate lobed midgreen Moist oblong obovate offsets panicles Papaveraceae pink pinnate pinnatisect plant purple racemes Ranunculaceae ray florets rhizomatous rhizomatous perennial ripe sandy Hardiness Scrophulariaceae Seed or division Sharply drained Softwood cuttings species spikes Spread spring or autumn spring Rhizomatous spring to summer stems subshrub summer to autumn summer to early Sun or half Sun Soil tepals toothed tubular U.S.A. Leaves umbels warmth in spring Well-drained Hardiness winter woodland yellow Zone 5 Propagation Zone 9