Primula ‘Crescendo Blue Shades’ is part of the Primulaceae family of plants. They also call it Polyanthus ‘Crescendo Blue Shades’. It is part of the Crescendo Series. It is a short-lived perennial. They usually grow it as an annual.
Primula ‘Crescendo Blue Shades’ grows to about 10in or 25cm tall. It forms a rosette of bright green, oblong leaves. It grows umbels of yellow-eyed, blue flowers. It starts flowering early in winter and conitues into spring.
How to grow Primula ‘Crescendo Blue Shades’:
Grow Primula ‘Crescendo Blue Shades’ in the sun or partial shade. Plant it in humus-rich, fertile, moist but well-drained soil. Try to keep a consistent moisture level, without it ever getting too wet. Propagate by seed in spring. You may cut it back after the flowers are done. Watch out for aphids, red spider mite, leafhoppers, vine weevil, slugs, and grey molds. It might also be susceptible to brown core and virus.
Also read about Primula vulgaris.