The flowers are drooping, 8–12 cm in diameter, with nine (occasionally 12) tepals, the outer three small and greenish, sepal-like, the main six larger and pure white; the stamens and carpels are crimson.

Due to their drooping character, the flowers are best viewed from the underside.

This species is threatened by habitat destruction and collection for medicinal use (see Houpu magnolia), and regeneration is poor.

Magnolia wilsonii, though rare, is in cultivation as an ornamental tree and planted in temperate climate gardens, such as in coastal California.

This plant has gained the Royal Horticultural Society's Award of Garden Merit.