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Value-for-money

Allium Globemaster

Allium Globemaster

4,6/5
37 reviews
5 reviews
3 reviews
2 reviews
1 reviews

very beautiful bulbs, I am looking forward to seeing the outcome in the spring

suzanne luminet, 23/11/2023

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More information

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A spectacular ornamental garlic, with deep pink-mauve umbel inflorescences measuring 15 to 20cm (6 to 8in) in diameter. It is stunning in summer flower beds where it multiplies over the years. It is easy to grow in the sun, in well-drained and rather moist soil. It flowers in May-June.
Flower size
18 cm
Height at maturity
90 cm
Spread at maturity
20 cm
Exposure
Sun
Hardiness
Hardy down to -20°C
Soil moisture
Moist soil
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Best planting time September to November
Recommended planting time September to November
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Flowering time May to June
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Description

Allium 'Globemaster' is the largest, most impressive, most structuring ornamental allium. Sadly, it had fallen into disuse, but was brought back into fashion by many landscapers eager to structure maintenance-free sunny flower beds. It emerges from flower beds from the end of spring, bearing large round flower heads of a deep pink-purple carried on top of robust and tall stems. This variety multiplies rapidly over the years in well-drained and sunny soils. It is superb in flower pots. Its flowers are also perfect in dried or fresh bouquets.

 

Allium 'Globemaster' is a bulbous perennial plant from the Amaryllidaceae family. It comes from A. giganteum, native to the east and centre of Asia, from Afghanistan to Pakistan and Russia, as well as the Himalayas. It loves the sun and light, well-drained, limestone soil. Its bulb is resistant to cold in soils that are not too moist, especially in winter and the second half of summer.

From spring onwards, the large bulb develops a rosette of long, thick, ribbon-like, fleshy leaves with a green-grey-blue colour, measuring up to 50cm (20in) in height. This decorative foliage dries out as the flowering blooms. The stiff and sturdy floral stems measure 80cm (31in) in height. They emerge from the end of May in average climates, sometimes in June-July depending on the regions. They carry a superb globular inflorescence measuring 18 to 22cm (7 to 9in) in diameter. Each inflorescence is composed of numerous small star-shaped flowers with 6 pink-purple petals. These flower heads, devoid of fragrance, remain very decorative in flower beds once pollinated. The bulb replenishes its reserves after flowering and produces numerous bulb offsets, allowing it to multiply rapidly.

 

On its own, Allium 'Globemaster' has little interest. However, it proves to be quite remarkable when planted in voluminous flower beds with perennials in shades of pink and blue. Perfect in a contemporary-style decor, it is irreplaceable in a romantic mixed border, surrounded by a carpet of Nepeta 'Six Hill Giant', accompanied by Stachys byzantina and herbaceous peonies with large flowers such as 'Break a Day' or 'Bowl of Beauty' against a backdrop of opulent pink-flowered roses like 'Eglantyne', 'Heritage' or 'Mary Rose'. In any case, consider accompanying it with low and bushy plants that will hide its base, which becomes unsightly once the foliage has dried. For a more "dynamic" effect, its flowers can structure a modern garden where several geometric shapes oppose each other. For example, it can be planted with Stipa tenuissima, lavender, and cone-shaped trimmed boxwoods.

In short, the possibilities are endless!

Allium Globemaster in pictures

Allium Globemaster (Flowering) Flowering
Allium Globemaster (Plant habit) Plant habit

Flowering

Flower colour pink
Flowering time May to June
Inflorescence Umbel
Flower size 18 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green
Foliage description Deciduous foliage when flowering.

Plant habit

Height at maturity 90 cm
Spread at maturity 20 cm
Growth rate normal

Botanical data

Genus

Allium

Cultivar

Globemaster

Family

Alliaceae - Liliaceae

Other common names

Origin

Cultivar or hybrid

Product reference5111331

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Planting and care

Ornamental alliums are relatively easy to grow in sunny areas. They prefer light, well-drained soil that doesn't retain too much moisture. However, they do require some soil moisture throughout their growth and flowering period, as well as immediately after flowering so that the bulb can replenish its reserves and multiply. They will not grow well in hot regions where the soil naturally dries out from June onwards. Its ancestor, Allium giganteum, is native to mountainous and rocky areas that receive more precipitation in early summer.

Plant them before the end of October so that they have time to establish themselves. They are sensitive to winter moisture in clayey and waterlogged soils. Provide them with a sunny spot in well-drained soil, even if it is stony or enriched with gravel. Plant larger bulbs at a depth of 10cm (4in), spaced 15cm (6in). Plant smaller bulbs at a depth of 10cm (4in), spaced 7cm (3in) apart. Planting them in a 20x20cm (8x8x8in) pocket of pure sand proves to be effective in preventing bulb rot.

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Planting period

Best planting time September to November
Recommended planting time September to November

Intended location

Suitable for Meadow, Rockery
Type of use Border, Back of border, Container, Slope
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Planting density 9 per m2
Exposure Sun
Soil pH Neutral
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, light, well-drained

Care

Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
4,6/5

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