A genus comprising between seventy and eighty species of hardy perennials. The common Primrose, the Cowslip, the Chinese Primula obconica, the Primula Japonica, besides many others, are charming early-Spring flowers, often opening their pretty yellow, mauve, brown or white blossoms as early as January and continuing in flower for months. Many of the double varieties are very floriferous, almost hiding the foliage with their beautiful white, pink or purple blossoms. The Primulas delight in a shady, moist situation facing the East or North, in a light rich soil. Plant them one foot apart.
Propagate by seeds sown in Spring, covered to the depth of one-eighth of an inch, and kept growing in pots or boxes or a sheltered, shady border until Fall (when they should be planted where they are to flower) or, where a stock of old plants is at hand, by dividing the roots in the Fall.
Pyrethrum (Feverfew) This hardy herbaceous perennial is best known here by the variety named the Golden Feather which is much used in bedding and as front lines to ribbon borders, etc.
Pyrethrum roseum, used in the manufacture of insect powders, has rose-colored, single, Marguerite-like flowers which axe exceedingly handsome. There are also many varieties with double flowers and tall erect stems, very useful for cutting for inside room decoration. Their cultivation is simple, any good garden soil suiting them.
Propagation is effected by seeds sown a sixteenth of an inch deep, in February, in a cold frame, or in March with a little bottom heat; prick the seedlings out in boxes or sheltered borders until they are large enough to be placed in their permanent quarters. Pyrethrum roseum and other tall-growing sorts may also be increased by taking up the roots, dividing them into sections, replanting them one foot apart and top-dressing the surface of the soil with old manure.