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Gladiolus grandiflorus Tineke - Sword Lily

Gladiolus x grandiflorus Tineke
Large-Flowered Gladiolus, Sword Lily

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A large, bright red gladiolus, with sturdy stems reaching around 1 metre in height. Its large, well-aligned flowers form architectural spikes, perfect for borders and cut flower arrangements. A summer bulb to plant in spring, it can reflower each year if its corms are overwintered dry and frost-free.
Flower size
10 cm
Height at maturity
1 m
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -6.5°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

Gladiolus 'Tineke' is a large-flowered gladiolus with a vibrant red colour, selected for use as a cut flower. Its upright spikes, adorned with large, intensely red corollas, bring a fantastic colour to both contemporary and more classic displays. This easy-to-grow summer bulb is an ideal variety for creating large, elegant cut flower arrangements that last for several weeks.

This gladiolus belongs to the Gladiolus genus, from the Iridaceae family, largely native to southern Africa.
'Tineke' is a complex hybrid classified in the horticultural group of large-flowered gladioli, characterised by long spikes bearing large, widely open flowers, aligned on one side of the stem. It reaches about 1 metre in height when in flower. Its sturdy flowering stems emerge from green, narrow, lanceolate foliage. The 10-12 cm diameter flowers display a bright, deep, and uniform red, which highlights the pale stamens; they open from the bottom to the top of the spike. Flowering is staggered from July to September, depending on the planting date. The upright foliage forms a fan around the stems. The plant is deciduous: the vegetation dries out at the end of the season, and the corm enters dormancy; in cold climates, they should be lifted to be overwintered in a dry place.

In the garden, Gladiolus 'Tineke' is best planted in rows or small clumps in borders or at the back of mixed borders. It pairs particularly well with dark dahlias such as 'Karma Choc' or with the violet sage 'Amistad'. You can lighten the overall effect with the airy plumes of Panicum virgatum 'Shenandoah', and with annuals like Cosmos 'Rubenza'.
In a vase, play the monochrome card: red gladioli, raspberry-red calla 'Red Alert', a few branches of purple cotinus 'Royal Purple', and some fresh green foliage from butcher's broom, for example, for a very contemporary, large cut flower arrangement.

The Gladiolus genus takes its name from the Latin gladius, meaning sword; in the Netherlands, gladioli are even presented to walkers who complete the "Four Days Marches of Nijmegen", extending their ancient symbolism of strength and victory.

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Gladioli: planting, growing and care
Family sheet
by Alexandra 17 min.
Gladioli: planting, growing and care
Read article

Plant habit

Height at maturity 1 m
Spread at maturity 30 cm
Growth rate normal

Flowering

Flower colour red
Flowering time July to September
Inflorescence Spike
Flower size 10 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

Tineke

Family

Iridaceae

Other common names

Large-Flowered Gladiolus, Sword Lily

Botanical synonyms

Gladiolus × hortulanus ‘Tineke’, Gladiolus grandiflorus 'Tineke'

Origin

Cultivar or hybrid

Product reference25252

Planting and care

Hybrid gladioli 'Tineke' prefer rich, fertile, but well-drained soil, so loamy and sandy. Plant in full sun, sheltered from the wind. Space the bulbs or corms 10 to 15 cm apart, covered with 10 cm of soil. Feed after cutting the flowers. Avoid using manure, which encourages bulb rot.
Gladioli are not frost-hardy. They should therefore be lifted when they have faded or immediately after the first frosts. Cut the leaves and allow the corms to dry in a well-ventilated place for three weeks. Detach the old bulbs. Store the new bulbs and the bulblets throughout the winter in a cool, but frost-free place. The bulblets will flower in two years. It is preferable not to plant gladiolus bulbs in the same spot for several consecutive years. An annual rotation will yield better results.
In a mild climate, Gladiolus can be planted in September-October and overwintered in situ.

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, Back of border, Cut flowers, Vegetable garden
Hardiness Hardy down to -6.5°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 35 per m2
Exposure Sun
Soil pH Any
Soil moisture Moist soil rich, well-drained

Care

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

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