Overgrown forsythia blooming sparsely: blooms on old wood. Prune immediately after flowering. For neglected plants: cut to 2-3" above ground—sacrifices 2-3 years of bloom but regenerates vigorous, floriferous growth.
Maintenance: annually remove 1/4 oldest stems to 4" after bloom. Fertilize early spring (Feb-May). Plant new if impatient—dormant season best.
Forsythia tough—responds dramatically to renovation.
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