How To Encourage Iris Blooms. Pinch and remove some of the small leafy plant tips and not the flower buds on parts of the plant in late spring and early summer once you see several sets of leaves on any stem end. After blooming is finished cut flower stems down at their base but do NOT trim iris leaves after they have finished blooming.
09062015 Water every other week to keep the soil moist and prevent the plants from going into dormancy. Photo by Donna Brok. Reblooming irises can be cut back at the end of each blooming cycle to encourage a new flush of flowers.
Leaves carry on photosynthesis and generate energy for next years growth.
11022021 Pinch Pinch Pinch. Water irises in a way that the water would permeate deep into the soil. 09062015 Water every other week to keep the soil moist and prevent the plants from going into dormancy. Do not handle the flower buds or blooms too much.