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Allium & Iris collection from Holland

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Collection contains 18 plants

  • 15 x Iris x hollandica White Excelsior
  • 3 x Allium Globemaster

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This plant carries a 6 months recovery warranty

More information

This Allium & Iris collection from Holland consists of 15 bulbs of White Excelsior iris, pure white with a golden yellow signal, and 3 ornamental Globemaster Alliums with large pink-violet flowers. Magnificent in a sunny bed or in a flowering pot on a terrace. Flowering in May-June.
Exposure
Sun
Hardiness
Hardy down to -20°C
Soil type
Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
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Best planting time September to November
Recommended planting time January, September to December
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Flowering time May to June
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Collection items (18 plants)

Description

This Allium & Iris Collection from Holland combines the bright and elegant flowering of White Excelsior Dutch irises, pure white with a small golden yellow signal, with the huge pink-violet pompom-like floral heads of the ornamental garlic Globemaster. Plant your bulbs in a sunny flower bed or in a large pot on the terrace. Flowering in May-June.

This collection is composed of:

- 15x Iris hollandica 'White Excelsior': this 55cm (22in) tall Dutch iris offers a flower of pure white, highlighted by a small golden yellow spot on the sepals.

- 3x Allium Globemaster: this famous variety reaches a height of 80-90cm (32-35in) and offers large, perfectly round flowers in a deep mauve-pink colour, measuring up to 15cm (6in) in diameter. It multiplies over the years in well-drained soil and full sun.

Labeled separately

Less known and less used by gardeners than German irises, Dutch irises are nevertheless easy to grow in fertile and light soil, with undeniable elegance, but also indifferent to wild grasses that struggle to infiltrate their very vertical clumps. They come back year after year to offer you more and more elegant and joyful flowers, which go particularly well with ornamental garlic. Pick their flowers to make bouquets, add roses, arums or lilies or even late tulips. All irises and ornamental garlics need a sunny exposure to flower well. Give them at least half a day of full sun per day.

Plant habit

Height at maturity 80 cm
Growth rate normal

Flowering

Flower colour two-tone
Flowering time May to June
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Origin

Cultivar or hybrid

Product reference15274

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Planting and care

Plant your bulbs as soon as possible in a well-drained soil. Loosen the soil deeply, add compost and gravel if necessary in heavy soils. Plant at a depth of 10cm (4in) (Bulbs should be covered with twice their height of soil). Space the bulbs a few cm apart, making sure they do not touch each other. Choose a very sunny exposure for better flowering. After flowering, cut the flower stalks and let the leaves dry completely before cutting them back.

Planting period

Best planting time September to November
Recommended planting time January, September to December
Planting depth 10 cm

Intended location

Suitable for Meadow, Rockery
Type of use Border
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral, Any
Soil moisture Dry soil, Moist soil, Well-drained.

Care

Pruning instructions Once the flowering is over, it is preferable to remove the seed heads in order not to exhaust the plant. Remove the foliage once it is dry.
Pruning Pruning recommended once a year
Pruning time June
Soil moisture Dry soil, Moist soil
Disease resistance Very good
Overwinter Can be left in the ground

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