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Wisteria sinensis 'Caroline' Tree

Name: Wisteria sinensis 'Caroline' Tree
Brand: Ornamental Trees
SKU: WSC.C.75.1
Price: 58.0 GBP
Availability: InStock

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Product Details

Planting & Care

Delivery Information

Key features

Final size 6 x 4 metres in 20 years

Foliage Pinnate green leaves (deciduous)

Flowers Racemes of purple flowers

Position Full sun to part shade

Soil Prefers moist yet well-draining soil

Description

Wisteria sinensis 'Caroline' is a beautiful, twining climber; a relatively new variety that blooms earlier in the season than most other kinds of wisteria. In late spring to early summer, lilac blue flowers emerge in abundance, drooping from the plant in clusters (that can reach up to 30cm long!) for a stunning floral display. The blooms are highly fragrant and very popular with bees and butterflies. Seed pods which emerge after flowering add further interest into autumn, at which point you can expect the green pinnate foliage to turn bright shades of yellow.

Though it does tolerate some partial shade, we recommend planting Wisteria 'Caroline' in a full sun position for the best blooms—a sunny wall, pergola or trellis would be perfect. Wisteria 'Caroline' is fast-growing and will reach an approximate height and spread of 6 x 4 metres in 20 years. In maturity, it can reach heights of up to 9 metres.

All our Wisteria are grafted (rather than cuttings) so ought to flower earlier.

AKA Wisteria floribunda Caroline, Wisteria Caroline, Japanese Wisteria, Japanese Purple Wisteria

Planting Steps

1Preparation

Pot-grown plants can be planted at any time of year, whereas bare roots need to be planted between November and March.
Clear weeds and grass within a metre of the planting hole.
Dig a hole as deep as the root mass and twice as wide.
To help your plant establish more effectively, sprinkle Rootgrow in the hole.

2Planting

Gently loosen the roots and place into the planting hole.
Ensure the top of the plant's compost is flush with the level of the surrounding soil and the graft union or collar of the tree is above ground level.
Mix 50% of the original soil with 50% compost.
Fill in the hole, firming the soil gently.

3Last Steps

Water generously around the base of the plant.
If you are planting either a single stem tree or mature standard tree, we recommend adding a staking kit and rabbit guard.

Aftercare Advice

Wisteria require a good watering regime for a couple of years whilst they establish. Water well and regularly through spring and summer, increasing in hot or dry weather. If planting in autumn, you may only need to water a little. It is advisable to keep the area free of competing weeds and grass during this period.

Wisteria should be pruned twice annually—once in February when it is dormant and once in August—in order to maximise flowering and help keep it under control. The idea is to encourage the development of short, flowering-bearing spurs and reduce the amount of vigorous, leafy growth.

In February, start by removing any dead, diseased or damaged branches, right back to the main branch. Tie in new growth to extend the main framework and cut back summer side shoots to two or three buds from the base. As there are no leaves on the wisteria at this time of year, it'll be easier to see what does and doesn't need pruning.

In August, after flowering, cut back long or whippy green side shoots of the current year's growth back to 20cm (about five leaves from the main stem). If there are any dead, diseased or damaged branches, these should be removed. If your wisteria is young, select a few strong shoots to tie onto your climbing support. On an older wisteria, simply prune side shoots back to your framework of strong shoots.

To keep them happy and healthy, wisteria can be fed every spring with a general purpose fertiliser. Feeding with a high potash fertiliser or a flowering shrub feed (such as a rose feed) will encourage flower production.

For more detailed advice and video guides, please visit our Help & Advice section.

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