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Gladiolus x grandiflorus Olympic Flame - Sword Lily

Gladiolus x grandiflorus Olympic Flame
Sword Lily, Gladiolus

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A tall variety of gladiolus, with stunning flowers in a fairly soft but distinct orange shade, slightly bleached in some places. The inflorescence is beautifully highlighted with a yellow throat. The appearance of the floral spikes and their subtle hue harmonises perfectly with light foliage and green flowers, in summer borders as well as in bouquets.
Flower size
9 cm
Height at maturity
1.30 m
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -6°C
Soil moisture
Moist soil
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Best planting time April to May
Recommended planting time March to June
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Flowering time July to September
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Description

The Gladiolus 'Olympic Flame' is a tall variety, ideal for mid or back of borders, or large borders. Its flowers bloom in summer in a fairly soft orange hue, slightly bleached in places, beautifully lit by a yellow throat. The petals are finely plicate, undulating at the edge. The stems are strong, stout, covered with numerous buds. As graceful as they are bright, the floral spikes also create beautiful arrangements in bouquets.

Originating from Africa, Europe, the Middle East, belonging to the Iridaceae family, the most colourful Gladiolus species come from South Africa. Cultivated gladioli are hybrids with large flowers, divided into 3 main groups: Grandiflorus (large-flowered), Primulinus, and Nanus (butterflies). 'Olympic Flame' is part of the Grandiflorus group. It is a perennial herbaceous plant with corms (globose bulbs), broad sword-shaped leaves, arranged fan-shaped, forming a clump of approximately 1.10 to 1.40 m in flower height, depending on growing conditions. The leaves are topped by a spike inflorescence with funnel-shaped flowers 8-9 cm wide, arranged unilaterally, almost all on the same side of the floral stem. The 6 tepals (or undifferentiated petals) are slightly undulate.

Gladioli, with their sometimes extravagant long colourful spikes, evoke the 70s and somewhat formal floral arrangements. Essential in bouquets, they gain charm in the garden when accompanied by plants with opulent or airy foliage, softening their dense flowering. Plant them in groups in borders with catmints, chamomiles, small grasses, toadflaxes, bee balms, wallflowers, and forget-me-nots to create large colourful bouquets. These flowers, typical of cottage gardens, also find their place in the vegetable garden, amidst the vegetables. For bouquets, cut the spikes as soon as the first floret begins to open. Plant gladioli every two weeks, from early spring until late June, to enjoy them in bloom all summer, at home and in the garden.


The gladiolus owes its name to the shape of its sword-like leaves, derived from the Latin gladius. Its wild forms were often depicted in jewellery or on carpets and fabrics made by the Semites before the Christian era.

Plant habit

Height at maturity 1.30 m
Spread at maturity 30 cm
Growth rate normal

Flowering

Flower colour orange
Flowering time July to September
Inflorescence Spike
Flower size 9 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green
Foliage description sword-shaped

Botanical data

Genus

Gladiolus

Species

x grandiflorus

Cultivar

Olympic Flame

Family

Iridaceae

Other common names

Sword Lily, Gladiolus

Origin

Cultivar or hybrid

Product reference23519

Planting and care

The 'Olympic Flame' hybrid gladioli thrive in rich, fertile, well-drained, sandy soils. Plant in full sun. Space the bulbs or corms 10 to 15 cm apart, covered with 10 cm of soil. Fertilise after cutting the flowers. Avoid using manure which promotes bulb rot. Gladioli are susceptible to frost. Therefore, they should be dug up when faded or immediately after the first frosts. Cut the leaves and allow them to dry in a well-ventilated area for three weeks. Remove the old bulbs. Store the new bulbs and bulblets throughout the winter in a cool place, but protected from frost. The bulblets will bloom in two years. It's best not to plant gladiolus bulbs in the same spot for several years in a row. An annual rotation will yield better results. In mild climates, Gladioli can be planted in September-October and left in place over the winter.

Planting period

Best planting time April to May
Recommended planting time March to June
Planting depth 10 cm

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 35 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil, Well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Needs to be stored

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