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Hermodactylus tuberosus - Tuber Iris

Iris tuberosus
Tuber Iris

4,0/5
10 reviews
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2 reviews

I just received them and planted them, but unlike the online description ("sol sec" - dry soil), the packet says "humide" - moist. So, what now?

Gabry, 30/11/2023

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This plant carries a 12 months recovery warranty

More information

Curious little Mediterranean bulbous plant, Hermodactylus tuberosus or Iris tuberosa produces chartreuse green and black flowers!
Height at maturity
30 cm
Spread at maturity
15 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -18°C
Soil moisture
Dry soil
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Best planting time September to November
Recommended planting time January, September to December
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Flowering time March to May
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Description

Curious little bulbous Mediterranean plant, called Iris tuberosa or formerly Hermodactylus tuberosus produces chartreuse green and black flowers! 

Belonging to the same family as Irises, Hermodactylus tuberosus is native to the Mediterranean basin. It forms a stump emitting tubercles like small bulbs, from which in spring lanceolate, very narrow leaves emerge. The solitary flowers at the end of a small stem, velvety, are colored chartreuse green and have black spots.

The plant multiplies by bulblet and quickly forms beautiful colonies.

Easy to grow, it likes very well-drained, poor, limestone soils and above all, lots of sunlight to bloom! In summer, it goes into vegetative rest.

Hermodactylus tuberosus - Tuber Iris in pictures

Hermodactylus tuberosus - Tuber Iris (Flowering) Flowering
Hermodactylus tuberosus - Tuber Iris (Foliage) Foliage

Flowering

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

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 30 cm
Spread at maturity 15 cm
Growth rate normal

Botanical data

Genus

Iris

Species

tuberosus

Family

Iridaceae

Other common names

Tuber Iris

Origin

Central Asia

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Planting and care

Easy to grow in any rocky and well-drained soil of a scree garden or gravel garden. It is in the latter that we cultivate this plant, more strange than beautiful, alongside Alstroemeria aurantiaca.

Planting period

Best planting time September to November
Recommended planting time January, September to December

Intended location

Suitable for Meadow, Rockery
Type of use Border
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Amateur
Planting density 12 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Stony (poor and well-drained)
Soil moisture Dry soil, Sandy

Care

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

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