Shrub

Ceanothus arboreus ‘Trewithen Blue’

Felt-Leaf Ceanothus 'Trewithen Blue'
Award Winner Loved by Pollinators Fragrant Scent Hardiness H4

‘Trewithen Blue’ is a large evergreen Ceanothus with spreading branches, broad green leaves, and pyramidal clusters of fragrant mid-blue flowers in spring. Its generous scale makes it perfect for those who want a statement shrub, while also drawing pollinators to its blooms. Awarded the RHS | Award of Garden Merit, it combines beauty with resilience. For anyone seeking a fragrant, wildlife-friendly shrub with size and presence, this variety stands out.
SKU: CEA-2L-TM6Z5G
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Flowering Months
Jan J
Feb F
Mar M
Apr A
May M
Jun J
Jul J
Aug A
Sep S
Oct O
Nov N
Dec D
Size
Max Height
4.0 m — 8.0 m
Max Spread
4.0 m — 8.0 m
Growth Habit
Densely branched plant with compact, leafy, rounded overall shape., Widely extends outward with many lateral branches from center.
Planting Position
Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun
Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
South West
Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Sheltered
Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
(−10 to −5 °C) Hardy in most of Ireland
Ideal Soil Conditions
Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Loam Sand
Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Free draining
Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral
Plant Uses & Merits
Uses
  • Architectural
  • Patios / Courtyards
  • Coastal Areas
  • Against Wall
Merits
  • Drought Resistant
  • Fragrant
  • RHS | Award Of Garden Merit
  • Loved By Pollinators

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