This is the best time to cut agapanthus back for big blooms next year, according to its type

Blue agapanthus flowers growing in garden.

I’ve noticed a lot of gardeners wondering when to cut back agapanthus in recent weeks, and if you’re gearing up to trim the plants pretty soon, you’re bang on the money.

Knowing when to deadhead agapanthus is one thing, but it’s best to cut the plants right back for the final time in late autumn, when they’ve finished flowering. There’s an art to timing it just right, though, and you mustn’t jump the gun.