Wisteria/ Wisteria Bonsai

Bonsai Species Guides: Page 2 of 2

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Once the trunk has developed, the tree is allowed to become completely rootbound. This stops all vegetative growth in the tree; that is, though it will produce new leaves each year, it will produce very few new shoots (if at all). The Wisteria stops producing juvenile vegetative growth and is forced into a 'mature' phase in its life where it tries to reproduce (make flowering spurs and flowers).


Finally, feed correctly. As a member of the Leguminosae family, Wisteria are able to harness Nitrogen from the atmosphere. Feeding with fertilisers that have anything other than a low nitrogen content will encourage excessive vegetative leaf-growth at the expense of flower production.

wisteria flowers

Wisteria sinensis / Chinese Wisteria flowers

BONSAI CULTIVATION NOTES

POSITION
Full sun or partial shade. Wisteria bonsai can become quite top-heavy and care should be taken that specimens are not blown over in strong winds. Wisteria are fully-hardy when grown in the ground but due to the high moisture content of the roots, should be given some protection when temperatures drop below -5°C.

FEEDING
Feed with a low-nitrogen fertiliser fortnightly after flowering has finished until Autumn.wisteria

WATERING
Wisteria require large quantities of water in comparison to most other bonsai species and need heavy watering to keep them continually moist. In periods of hot weather during the Summer they will happily tolerate their pots being stood in a shallow tray of water to keep up moisture levels. However, water trays, if used, should be allowed to dry out daily.

REPOTTING
Repot every 2 or 3 years after flowering has finished in a basic soil mix. Wisteria can be repotted in early Spring as with other bonsai species but flower production will be affected.

Repot annually to encourage vegetative groth (at the expense of flowering)

PROPAGATION
Basal cuttings from side shoots in early to mid-Summer and root with bottom heat. Ground layer in Autumn or air-layer after flowering.

PESTS AND DISEASES
Leafspot, brown scale and aphids might be a problem.

STYLING
Wisteria are styled into forms that allow their flowers to cascade to their full length. Style trees to show off their flowers rather than their foliage. Use informal upright, slanting or cascade forms in medium to extra-large sizes.

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