Growing Hydrangeas in Pots: Choosing Varieties, Planting and Care
Hydrangeas grow well in pots when the variety, container and compost are chosen with their eventual size and moisture needs in mind. Learn how to plant, water, feed and protect...
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Ceanothus arboreus ‘Trewithen Blue’
Felt-Leaf Ceanothus 'Trewithen Blue'
‘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.
Plant Details
Flowering Months
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 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 Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
- South West
- Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
- Sheltered
- Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
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(−10 to −5 °C) Hardy in most of Ireland
Ideal Soil Conditions
- Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
- Soil Moisture 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 Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Plant Uses & Merits
- Uses
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- Architectural
- Patios / Courtyards
- Coastal Areas
- Against Wall
- Merits
-
- Drought Resistant
- Fragrant
- RHS | Award Of Garden Merit
- Loved By Pollinators
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Mophead, lacecap, panicle, smooth, oakleaf and climbing hydrangeas differ in far more than flower shape. This guide compares their growth, flowering habit, preferred position and garden use to help you...
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How to Grow Hydrangeas in Ireland: The Complete Guide
Hydrangeas are well suited to many Irish gardens, provided the type is matched to the position. This guide covers choosing Hydrangeas, light and soil, planting, watering, feeding, pruning, flower colour,...
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Best Hydrangeas for Small Gardens
Small gardens can accommodate hydrangeas very well when mature size and habit are considered from the outset. Compare compact mophead, panicle, oakleaf and lacecap choices that give substantial summer interest...
