How to prune petunia 'tidal wave silver'

Midsummer when plants show signs of legginess or reduced bloom. Shear stems back by one-third, cutting above a leaf node. Remove any dead or yellowing basal stems entirely. Water thoroughly and apply a high-potassium liquid feed to support the flush of new growth and flowers.

Once mid-season; optional light shaping as needed. Petunia 'Tidal Wave Silver' is a robust spreading-mounding annual that can reach 24 inches tall and spread several feet. Trim stems back by up to a third mid-season if it becomes leggy or bare at the base. This encourages fresh branching and sustained flowering. Feed generously after cutting to fuel regrowth.

Shear stems back by one-third, cutting above a leaf node. Remove any dead or yellowing basal stems entirely. Water thoroughly and apply a high-potassium liquid feed to support the flush of new growth and flowers.