|its been at least 7 yrs of nonbloom any suggestions?? it's got one last chance|
|The biggest frustration gardeners face when growing wisteria is that plants have a longer than average juvenile period and sometimes fail to bloom as expected. Start with grafted plants or those produced from cuttings rather than those grown from seed. A plant will also fail to bloom if: it does not receive full sunlight; there is excessive vegetative growth that may have been stimulated by excess nitrogen fertilizer; it is pruned heavily in winter and spring, which encourages vigorous, vegetative growth; and/or it is pruned improperly. Also, in severe winters, flower buds may be injured or killed. The following practices may help induce non-blooming vines to flower: a heavy application of superphosphate (0-20-0) in early spring; severe pruning of new growth in late spring or early summer; root pruning in late fall. Hope this helps!