Callistephus chinensis Matsumoto White - Reine-marguerite Matsumoto White, Aster de Chine

Sowing 'Matsumoto White' Shasta Daisies: It is preferable not to sow these plants in the same location for two consecutive years. Sow outdoors from April to May, then transplant into position as soon as the young plants have 2 to 4 leaves, spaced 40 cm apart, in well-loosened, fresh, and well-manured soil, having chosen a very sunny spot. Water frequently, but sparingly. It is beneficial to transplant several times while keeping the rootball intact to encourage root development and slightly slow down stem growth, which could otherwise break under the weight of the flowers. To achieve earlier flowering, sow under a cold frame or on a hotbed, in seed trays, from February to April. Sow the Shasta Daisies in trays filled with sand and blonde turf under cover at a temperature of 16 to 20 °C. Carry out a transplant into individual small pots when the seedlings have at least four leaves. Plant them out in the garden when they reach a height of 15 cm. Install stakes to support the taller varieties with very double flowers.

A later sowing in June allows for staggered flowering until the end of autumn. The sowing can then be done directly in position in the garden.

These plants like a neutral or slightly calcareous, very fertile and well-drained soil and require a very sunny exposure. Generous watering will be necessary twice a week during dry periods, but care must be taken to water the base and not the foliage, as Shasta Daisies are susceptible to powdery mildew. Remember to remove faded flowers as they appear to prolong flowering and prevent weakening of the plant.