Analysis of information sources in references of the Wikipedia article "Forsythia" in English language version.
Yellow flowers appear before foliage in February or March and last through April or May.
Pruning should be done immediately after spring flowering; if done after mid-July, you will likely remove flower buds for the following spring. To rejuvenate an older plant, you can cut it back almost ground level.
Yellow flowers appear before foliage in February or March and last through April or May.
Pruning should be done immediately after spring flowering; if done after mid-July, you will likely remove flower buds for the following spring. To rejuvenate an older plant, you can cut it back almost ground level.