This section is from the book "The Gardener's Monthly And Horticulturist V23", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
These still stand unrivalled as hardy edging plants. Like other members of the Primrose family, they delight in cool shaded quarters in summer, for if fully exposed to strong sunshine they lose most of their foliage, and if dry at the root for any length of time, die away altogether, a mishap which may possibly account for the comparative scarcity of this variety. We find it to do best on the north side of a hedge or other screen, and the best time to increase it is directly it ceases flowering, or hot dry weather sets in. Every crown of it should be planted separately on rather stiff soil, and kept moist until well established. A few evergreen branches may be used to produce shade if north borders are not available. In nurseries where large quantities of similar plants require protection more from summer heat than winter cold, a thin layer of straw is frequently employed for this purpose with good results.
•We find this Primrose to succeed well as a permanent edging plant for beds of choice evergreen or deciduous shrubs, as the shelter afforded by the latter in spring when the Primroses are in bloom protects the purity of their blossoms, and the shade in summer is just what the plants require. Well established clumps produce such a profusion of bloom as to quite hide the foliage, and the blooms are so very double and of such pearly whiteness, that they form a good substitute for choicer flowers in floral decorations. We sometimes use them for spring gardening, but in freshly-dug beds the purity of their blossoms gets marred by heavy rains much more than in permanent plantations in sheltered positions. - Gardening Illustrated.
Among the matters of interest at the Gettysburg meeting of the State Horticultural Association, was an exhibit of improved Chinese Primroses by Mr. Henry Rupp, whose great success has been before noted in the Gardener's Monthly. By persevering selection and crossing he has now nearly a couple of dozen varieties. Mr. Rupp finds that after the varieties are once secured, not over three per cent, shows any disposition to wander from their new characters.