Product description
If you are wanting to add all-year round interest and colour to your garden, the Ceanothus 'Trewithen Blue' makes a fabulous choice. It is one of only a few plants that offer stunning blue flowers, creating an usual and wonderful display.
Californian Lilac is an ever-green, keeping its dark green leaves all year round, adding colour when other plants are bare. The flowers burst forth in mid to late spring in the form of weighty dark blue clusters. They have a slight honey perfume and attract bees, butterflies and birds into your space, bringing sound and movement. The flowers can become so heavy that the branches arch downwards - a stunning sight to see!
Ceanothus arboreus 'Trewithen Blue' is frost hardy and is best suited to moist, well-drained sites and all soils except clay. Try to keep your plant protected from windy conditions by planting in a sheltered area or against a wall. It can be planted and trained as a climbing shrub or as a small tree reaching heights of 6m and a spread of 5m in a 20 year period. If you have green-fingers, you can train it as an espalier or a fan.
A holder of an RHS Award of Garden Merit, the Ceanothus 'Trewithen Blue' makes a fabulous display all-year round. Makes a wonderful gift idea for new home owners who are establishing a young garden.
Plant specs, care guide & tips
Key features
Specifications
When to plant
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
Prune Ceanothus annually after flowering to encourage healthy growth and maintain its shape. Focus on removing any dead or damaged wood and avoid cutting into old wood, as it may not regrow. Protect young plants in colder regions with a fleece during harsh winters to prevent frost damage and ensure vibrant growth in the following season.
How to Water
Water Ceanothus deeply after planting to help establish its root system. During the first growing season, water regularly, especially during dry spells, but ensure the soil does not become waterlogged. Once established, Ceanothus is drought-tolerant and requires minimal watering, except in prolonged dry conditions. Use rainwater if available, and water early in the morning or late in the evening to reduce evaporation.
How to Plant
To plant Ceanothus, choose a sunny, sheltered spot with well-draining soil, ideally slightly acidic to neutral. Dig a hole twice as wide as the root ball but no deeper than its height. Place the plant in the hole, ensuring the top of the root ball sits level with the soil surface, then backfill with soil and firm gently. Water thoroughly after planting to help the soil settle. Apply a layer of mulch around the base to retain moisture and suppress weeds, keeping it clear of the stem.