Chrysanthemum coccineum--Pyrethrum Daisy

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Chrysanthemum coccineum--Pyrethrum Daisy

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Pyrethrum daisy produces daisy-like flowers in red, pink, lilac and white. The plants grow 18 to 24 inches high. Most bloom in June and July and the removal of side buds increases flower size. Pyrethrum prefers a fertile, well drained soil and full sun or partial shade. Some winter protection is advisable. The plants are fertilized regularly during the growing season. Sometimes pyrethrums are cut down in June after the first bloom to promote a fall bloom. The second blooming is much poorer than the first and probably weakens the plant, so the practice is not recommended. Pyrethrums need staking early in the season. Dwarf varieties do not need staking.

Propagation is by division, seed or cuttings. The cuttings are stem cuttings rooted in sand. Division is done in late summer or early spring. Divisions done in late summer have to be well watered when replanted. Seed germinates in one to two weeks at temperatures between 60 and 70 degrees.

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