Cenothera (Evening Primrose)

Herbaceous and slirubby plants suitable for cultivation in beds, borders, or on the rockery. Plant in autumn or spring in a light, sandy loam. They like a well-drained sunny situation, and need a copious supply of water.

Mulch with decayed cow manure once a year. Lift, divide and replant every third or fourth year. These plants may also be increased by cuttings taken in spring or summer, or by suckers removed at the same period.

These plants resemble the primrose, the flowers being various shades of yellow, and in the evening they are wonderfully fragrant.

A few varieties for cultivation in the amateurs garden are: O. frulicosa Youngi, golden-yellow. 1 ft. O. Pilgrimi, golden-yellow, li ft. O. odorata sulphured, pale-yollow. 3 ft. Omphalodes (Rock Forget-me-nots). Perennial herbs, for culture on the rock garden.

Plant in autumn or spring in an ordinary rich soil in a partly-shaded position. They like plenty of moisture, and a mulch of decayed cow manure should be applied in spring.

Increase by division of the roots in spring. The flowers are borne on 6 in. stems in summer and are similar to the Forget-me-not, being blue in colour.

Onosma. Perennial herbs, mostly cultivated on the rockery.

Plant in spring in sandy loam and grit. They like a sunny position with plenty of moisture. In spring a mulch of decayed cow manure should be given.

Increase by shoots taken in July or August.

Seeds may also be sown in the greenhouse in March, planting out in May to their flowering position.

The various species are mostly yellow, white, and rose, appearing in summer on stems from 6 in. to 1 ft. in. height.

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