- Plants are too young and immature. Let them develop.
- Planted too deep. Examine and, if eyes are more than 3” inches underground, raise to two inches.
- Large clumps are planted without proper division. Dig, divide into small or standard divisions and plant.
- Buds were killed by late frost. Hope for better luck next year.
- Buds were killed by disease. They turn black and die. Spray with a fungicide in early spring; again in the summer.
- Buds were attacked by thrips. They open partially, turn brown, and fall. Spray to prevent this.
- Buds water logged, also turn brown and refuse to open. Bagging would help.
- Plants undernourished. Buds show but do not develop. Fertilize to add strength to the plant.
- Ground too dry. Water down to the bottom of the roots.
- Roots infected with nematodes or root-knot or both. Destroy.
- Plants are undermined by moles.
- Excessively hot weather. Late full doubles often fail from this cause. No remedy.
- Planted too near trees and shrubs, or crowded by other plants.
- Too much shade makes the plants tall and leafy. Move.
- Moved and divided too often. When once planted, they need to be left alone and never moved, unless necessary.
- Too much nitrogen. Cut down on fertilizer rich in nitrogen.
44659 by Na