Annelise advises against seed trays for chrysanthemums as they don’t tolerate root disturbance when it comes to pricking out. 'Chrysanthemums like a fertile but well-drained soil,' says Nigel.

Planting bare root mums in spring gives them time to get established for the fall blooming season. You can plant potted mums you buy in autumn, but this works best when done as early as possible with ...