It is drought resistant and widely used in rockeries, over dry banks, and as edging for borders. Both types of phlox are propagated by division of clumps, stem cuttings, or seed. Chill seed for a month in the refrigerator before planting. Germination requires about 25 days and is very irregular. Seed-grown plants are highly variable in color and form.
Primroses are good for rock gardens, edging a border, and along streams.
They are also useful for cut flowers. They grow 6 to 9 inches high. They need rich, welldrained soil in shaded spots. Propagation is by division immediately after flowering in the spring or later in the fall, or by seed. Seed germinates in about 25 days, but germination is very irregular.