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Double Diamond Agapanthus

Agapanthus Double Diamond
African Lily, Lily of the Nile

4,3/5
18 reviews
1 reviews
3 reviews
1 reviews
2 reviews

So disappointed I've never had a single flower even though I bought them in 2019. I have plenty of leaves, that's all. I'm very disappointed.

Caroline, 29/06/2023

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This plant carries a 12 months recovery warranty

More information

New, compact variety with short, abundant floral stems and pure white double flowers.
Flower size
10 cm
Height at maturity
35 cm
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -6°C
Soil moisture
Dry soil, Moist soil
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Recommended planting time March to June
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Flowering time July to August
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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

Double Diamond Agapanthus (Flowering) Flowering
Double Diamond Agapanthus (Foliage) Foliage

Flowering

Flower colour white
Flowering time July to August
Inflorescence Umbel
Flower size 10 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Semi-evergreen
Foliage colour medium green

Plant habit

Height at maturity 35 cm
Spread at maturity 30 cm
Growth rate slow

Botanical data

Genus

Agapanthus

Cultivar

Double Diamond

Family

Alliaceae - Liliaceae

Other common names

African Lily, Lily of the Nile

Origin

Cultivar or hybrid

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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

Recommended planting time March to June

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Container
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, rich, loamy and well-drained

Care

Pruning instructions Cut the faded stems so that the plant doesn't exhaust itself by producing seeds.
Pruning Pruning recommended once a year
Pruning time August to September
Disease resistance Very good
Overwinter Can be left in the ground
4,3/5

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