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Helictotrichon sempervirens - Blue oat grass

Helictotrichon sempervirens
Blue oat grass

67 reviews
4,4/5
46 reviews
7 reviews
7 reviews
4 reviews
3 reviews

Entirely cracked pot, when delivered the young plant had come out of it. I hope to recover it. Lack of seriousness in the packaging.

Syloup, 05/09/2023

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This plant carries a 12 months recovery warranty

More information

Graden Merit
Helictotrichon sempervirens, an evergreen metallic blue grass.
Height at maturity
50 cm
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -15°C
Soil moisture
Dry soil
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Recommended planting time February to April, September to November
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Flowering time July to August
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Description

At our place, Helictotrichon sempervirens is the ideal grass for the scree garden, rockery or well-exposed slope as it doesn't appreciate overly moist regions.

A reliable perennial, Blue Oat Grass forms an upright, then spreading clump. The evergreen leaves, quite stiff in appearance, are of a very soft colour, more blue than grey. The culms bearing the spikes are rather rigid and beige in colour.

Helictotrichon sempervirens - Blue oat grass in pictures

Helictotrichon sempervirens - Blue oat grass (Flowering) Flowering
Helictotrichon sempervirens - Blue oat grass (Foliage) Foliage
Helictotrichon sempervirens - Blue oat grass (Plant habit) Plant habit

Flowering

Flower colour yellow
Flowering time July to August
Inflorescence Spike

Foliage

Foliage persistence Evergreen
Foliage colour blue
Foliage description Evergreen, steely blue.

Plant habit

Height at maturity 50 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Helictotrichon

Species

sempervirens

Family

Poaceae

Other common names

Blue oat grass

Origin

Central Europe

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Planting and care

Helictotrichon sempervirens dislikes heavy and wet soils. It prefers light and fertile soils, even rocky ones, and always well-drained.

Planting period

Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Rockery
Type of use Border
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Sandy, free-draining.

Care

Pruning instructions Pull out the old foliage with a rake or by hand. Attention, this grass does not tolerate pruning.
Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
4,4/5

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