Handbook of Hardy Herbaceous and Alpine Flowers

18 inches high 9 inches adapted alpine plants Alps appear in June beautiful beds blue border-plant branches clothed cold frame colour corolla corymbs cultivation culture cuttings deep dense distinct dwarf early summer easily egg-shaped erect Fcap feet high flower-garden flower-heads flower-stems flowers are large Flowers in April Flowers in June foliage foot high freely garden-soil gardens genus glaucous habit hairy handsome hardy height herbaceous plants increased by division inflorescence July and August June and July lance-shaped loam lobes masses mixed border moist Native of Britain Native of North naturalising North America numerous oblong ornamental ornamental plants pale panicles peat perennial petals pink places plant grows pots pretty propagated by division purple Pyrenees racemes rich rockwork roots sandy loam seed sepals shade showy shrubs Siberia soil southern Europe species grows spikes spring stalks stems succeed terminal toothed tufts umbels variegated varieties warm well-drained winter