Indispensable border plants, given soil that does not dry out too readily. Work in generous amounts of moisture-retaining materials such as peat and leaf mould before planting. They are easily divided in spring. Heights vary from 2 to 3 ft., all varieties being yellow or orange and flowering in May and June. If cut back, a second crop may be expected in late summer and early autumn. They are useful for cutting. Alabaster is best described as ivory-primrose, Canary Bird pale yellow, Orange Globe rich orange and Prichard’s Giant (taller than most) a real deep yellow. There are several attractive rockery species, Trollius acaulis reaches 6 in. with large golden-yellow flowers and T. primulusyunnanensis is a little taller.

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