Double Diamond Agapanthus
Double Diamond Agapanthus
Double Diamond Agapanthus
Double Diamond Agapanthus
Double Diamond Agapanthus
Agapanthus Double Diamond
African Lily, Lily of the Nile
Very good!
Marie, 02/07/2025
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Description
The Agapanthus Double Diamond is a new variety known for its compact size and stunning pure white double flowers. It blooms from July to August, producing beautiful globular umbels of flowers around 10cm (3.9 inches) in diameter. The flowers are carried on short stems, only about 30cm (11.8 inches) in height. The trumpet-shaped double flowers are pure white, and when cut and placed in a vase, they can bring freshness to any home. The foliage of the agapanthus is evergreen, especially in mild climates and remains decorative throughout the year.
This plant is not hardy and cannot tolerate temperatures below -5°C. Planting the Agapanthus Double Diamond in a pot placed on a sunny terrace to ensure abundant flowering is best. If you're planting it in the ground, choose a warm exposure in a mixed border, perennial bed, or border. It can also be grown on its own. This plant thrives by the seaside, in an English cottage, and even in a city garden.
Double Diamond Agapanthus in pictures
Flowering
Foliage
Plant habit
Botanical data
Agapanthus
Double Diamond
Amaryllidaceae
African Lily, Lily of the Nile
Cultivar or hybrid
Planting and care
The Double Diamond Agapanthus needs to be grown in a warm, protected location and faces south, getting full sun. The plant can endure drought well, but it requires rich, moist soil and particularly well-drained soil during winter. Water it twice a week in the growing season, but do not water it while it is dormant. During winter, the Agapanthus is susceptible to excessive moisture and doesn't like waterlogged soil. Therefore, it's recommended to mulch the base with a 20 cm (7.9 in) thick layer of dead leaves over the base of the plant and cover it with a mesh to prevent wind damage. Snow is also an excellent protection against excessive moisture and cold. Bring the plant indoors for protection if you're planting the Agapanthus in a pot. When planting it, ensure the fleshy roots are covered with leaf compost and planted at a depth of 30 cm (11.8 in). Once it's established in the ground, avoid disturbing it. In autumn, remove dead leaves and trim the faded stems so the plant doesn't exhaust itself by producing seeds.
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).
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.
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