The Concise Encyclopedia of Garden Plants |
Common terms and phrases
2cm long 2cm wide 30cm tall Asia autumn to spring beneath bipinnate blue bracts bright broadly ovate catkins China clump-forming clusters cold frame corymbs cosmopolitan distribution cultivars cymes dark green deciduous deep dense division at planting downy early summer elliptic erect Europe evergreen florets flower-heads flowers white fragrant fruit gardens genus glaucous glossy Greek greenhouse Grow in well-drained grown habit hairy half-hardy hardy herbaceous Himalaya humus-rich soil hybrid Japan lanceolate late spring late summer leaflets leaves lanceolate leaves linear leaves ovate lobed mat-forming moisture-retentive oblanceolate oblong obovate ovoid pale panicles partial shade perennials petals pinnate Plant autumn Propagate by division Propagate from seed purple racemes rhizomatous rhizomes rounded seed in spring seed when ripe sepals sheltered shrub slender small tree soil in sun sometimes Species cultivated species of annuals species of evergreen stamens stems sub-shrubs summer to autumn sunny tepals terminal toothed tufted umbels usually well-drained soil winter yellow