Ceanothus arboreus ‘Trewithen Blue’

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Picture by Leonora (Ellie) Enking (CC BY-SA 2.0)?by?wallygrom

Ceanothus arboreus ‘Trewithen Blue’

Californian lilac 'Trewithen Blue'

Code Temp Category Description
1 15C+ Indoor Grow as a houseplant or under heated glass.
2 10 to 15C+ Indoor / Outdoor Grow indoors, or outdoors in summer in a sheltered spot
3 5 to 10C Tender Grow outdoors in summer, and in a heated glasshouse in winter.
4 1 to 5C Tender Grow outdoors or under glass without risk of frost.
5 -5 to 1C Half-Hardy Hardy in coastal/mild/sheltered areas. Will not tolerate hard/sudden frost. May require winter protection in situ. such as fleece or straw mulch.
6 -10 to -5C Hardy May suffer at altitude, central/northerly locations, harsh winters, cold gardens and when grown in pots.
7 -15 to -10C+ Hardy Will survive most severe winters but may be at risk in central/northerly locations and in pots. Top growth may be destroyed but will usually re-grow.
8 -20 to -15C Hardy Will survive severe winter, but may need protection when grown in pots.
9 -20C & Colder Very Hardy / Hardy in the severest European climates.

£86.00

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SKU: 205086
Styles: , , ,

Description

Family Rhamnaceae
Originating from USA

Large and vigorous evergreen spreading shrub that has broad oval or rounded leaves with panicles of slightly fragrant deep blue flowers.
Grow in well-drained soil in full sun, sheltered from drying winds.

Height and spread after 10 years 5 x 5m

Colour

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Foliage type

Habit

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Light requirement

Location

Plant Type

Scent

Season of interest

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Soil PH

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