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We Have A Mimosa Tree We Planted Two Years Ago;…

Pam Asked

We have a mimosa tree we planted two years ago; it is doing well, but there are no blooms. What is wrong?

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The Gardener’s Answer

Hello, Pam: Mimosa trees (Albizia julibrissin), also commonly known as silk trees, are medium growing deciduous trees. The fern-like foliage and fragrant flower of the mimosa give it a tropical feel. It can take a few years for this tree to flower. If your mimosa otherwise looks healthy it may not be old enough to bloom yet. How large was it when you transplanted it? Unfortunately, here in Kentucky these trees are associated with many disease and insect problems, the most common being a vascular wilt disease. There are a few cultivars that are wilt-resistant, including ‘Flame’ and ‘Union.’ Hopefully you have one of these and not one that has been transplanted from the roadside. These non-native trees are tolerable of most growing conditions but prefer full sun to bloom well. Mimosa trees should not require any annual pruning except to remove any dead, diseased, or broken branches.

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