How to prune ipomoea batatas 'blackie'

Any time during the growing season when stems become too long. Cut trailing stems back by one-third to one-half using clean scissors or pruners, cutting just above a leaf node. Stems root easily in water if you want to propagate cuttings.

Every 4–6 weeks during active growth, as needed for containment. Ipomoea batatas 'Blackie' (ornamental sweet potato vine) benefits from regular trimming to keep its dramatic purple-black foliage compact and contained. Long trailing stems can be cut back by one-third to one-half at any point during the growing season. This cultivar is grown for foliage rather than flowers, so no bloom timing concerns apply.

Cut trailing stems back by one-third to one-half using clean scissors or pruners, cutting just above a leaf node. Stems root easily in water if you want to propagate cuttings.