When and how to cut back and prune lupins?
As well as pruning, deadheading lupins is an important key to keeping your plants successfully blooming over the summer. I generally deadhead as individual flowers finish flowering, and then once they stopped flowering well, I usually hard prune to ground level, which usually results in a second flush of flowers. I then usually prune back at the end of autumn to ground level to get my lupins ready for winter. Here’s how I personally deadhead and prune lupins in more…