How to prune ipomoea tricolor 'heavenly blue'

Pinch tips in late spring at establishment. Pinch the main stem tip above a leaf pair when the plant reaches 15–20 cm to encourage branching. No further pruning is necessary unless you need to redirect growth away from an obstacle.

Once at establishment; otherwise not needed. Ipomoea tricolor 'Heavenly Blue' is a vigorous annual vine that needs minimal pruning. A single pinch of the growing tip when seedlings are 15–20 cm tall promotes branching and more blooms. Deadheading is optional — spent flowers are barely visible among fresh ones. Let it grow freely and compost it at season's end.

Pinch the main stem tip above a leaf pair when the plant reaches 15–20 cm to encourage branching. No further pruning is necessary unless you need to redirect growth away from an obstacle.