Ceanothus Blue Mound
Ceanothus Blue Mound
Ceanothus Blue Mound
Ceanothus Blue Mound
California Lilac
Plants delivered on the scheduled date and time, but the size of the plants was advertised as 25/30 cm; they are only about ten centimeters...
alain, 06/11/2024
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Description
Ceanothus 'Blue Mound' is an evergreen variety forming a rounded and spreading, very dense clump, reaching about 1.5 m (4.9 ft) in height and 2 m (6.6 ft) in spread at maturity. Its intense green foliage, composed of small shiny oval leaves, serves as a backdrop in May-June for a superb, very bright sky-blue flowering. Not demanding on soil type, fast growing, not fearing the sun or drought, it ages better in poor and light soils, and prefers regions with mild winters.
Evergreen ceanothus are native to California. They belong to the Rhamnaceae family and are cousins of buckthorn (Frangula alnus).
'Blue Mound' was selected by Hillier Nurseries in England. This excellent variety holds the prestigious RHS Award of Garden Merit. It has a naturally bushy, compact and spreading habit; it is a bushy shrub that can reach 1.5 m (4.9 ft) in height and 2 m (6.6 ft) in spread in a few years. In May and June, an abundance of flowers appears at the end of the branches in the form of small dense panicles of bright sky-blue flowers. This fragrant flowering attracts many pollinating insects. It is followed by the formation of seeds which, once mature, are explosively released. The evergreen foliage is composed of small alternate, elongated and finely toothed leaves, of a shiny dark green, 1 cm to 3 cm (0.4 in to 1.2 in) long. This variety tolerates light pruning after flowering. Its average lifespan is 15 to 20 years, and its preferred climate will be rather maritime.
In recent years, horticulturists have 'invented' new varieties of ceanothus that are smaller and easier to acclimatise, making them perfect for our gardens and terraces. With good hardiness that goes down to -10°C to -12°C (14° F to 10.4° F) in well-drained soil, tolerating slightly limestone soils if they are light, 'Blue Mound' is an adorable small evergreen that is easy to integrate into the garden or rockery. Planted on the edge of a larger shrub bed, it adds the final touch that is appreciated in a well-kept garden. It can be planted with cistus, which is also evergreen and flowering in spring. Their pink or white corollas will harmonise perfectly with the bright blue clusters of 'Blue Mound'. This medium-sized variety will also enhance your balconies and terraces, with a few precautions.
Ceanothus Blue Mound in pictures
Plant habit
Flowering
Foliage
Botanical data
Ceanothus
Blue Mound
Rhamnaceae
California Lilac
Cultivar or hybrid
Planting and care
Place in a sunny or partially shaded location. Plant it in ordinary soil that should be moist but definitely well-drained in summer. Be careful of cold drafts that the bush does not like. It can be placed near a wall. Plant it throughout the year, except during frost, by mixing your garden soil with compost, coarse sand, perlite or any material that does not retain moisture. Water generously once or twice a week to promote establishment. Only water twice a month from the third year onwards, and only in case of drought. It is a plant that requires very little maintenance and grows easily as long as the conditions are met. Moisture in the soil during the winter period, as well as the summer period, is harmful to the plant. The combination of high heat and humidity leads to the development of a fungus that attacks the plant's collar and will be fatal to it. That is why, in affected soils, it is better to plant Ceanothus on a mound. You can lightly prune the stems after flowering to encourage the plant to branch out. Fertiliser applications are not recommended (just add a little horn at the bottom of the planting hole). Avoid severe pruning.
Pot cultivation:
Use a light substrate, a mixture of garden soil, coarse sand, and compost. In summer, water only when the soil is dry, abundantly but spaced out. The plant can be stored in a cool, bright room with little or no heating, protected from severe frost. Apply a slow-release fertiliser in spring and autumn.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.