Home and Building, Volume 18 Number 1 (June 1955)
Disbudding: Varieties producing heavy bud crops should be disbudded to obtain better and larger fiowers. By mid-summer flower buds may usually be distinguished from leaf buds. Terminal buds should be thinned to one, or not more than two and those along the stem should be spaced at least 2 inches apart.
If possible, leave buds at various stages of development so that the blossoms will not all mature within a short time of each other.