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Molinia caerulea Moorflamme - Purple Moor-grass

Molinia caerulea Moorflamme
Purple Moor-grass, Moor Grass

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A particularly dense selection, with fine foliage, spectacular in autumn with shades of orange-red touched with purple and flowering in fine brown-purple spikelets. Molinia is a charming perennial grass, native to acidic and wind-swept heathlands. When planted in the sun, it will adapt to dry or waterlogged soils, even clay.
Flower size
20 cm
Height at maturity
45 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil, Damp soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time August to October
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Description

Molinia caerulea 'Moorflamme' is a variety of Purple Moor grass that is attractive, with a very dense habit and remarkable autumn colours. It is a charming, simple and robust perennial grass. The plant forms an erect, swaying column with fine foliage, flowering with fine, dark spikelets between July and October. It adapts to sunny locations and can tolerate dry or waterlogged soils, even clay, but not limestone. Its beautiful structure enhances the garden even in winter. 

Native to Northern Europe, Southwest Asia, and the North, through Siberia, Turkey, and the Caucasus, Molinia caerulea belongs to the Poaceae family. This grass has a thick, fibrous, and tenacious crown. It owes its species name to the blue highlights that characterize its foliage. 'Moorflamme' is a horticultural selection with more foliage and more colourful autumn hues. This perennial forms a slightly stiff but graceful bundle of foliage 45 to 50 cm (18 to 20in) high, 90 cm (35in) in bloom, with a spread of 40-45 cm (16-18in). It bears slender, flat, light bluish-green leaves in summer, turning orange and mixed with purple in autumn, a deeper brown in winter. In summer, tall, sturdy stems rise above the foliage, carrying panicles of fluffy, dark purple spikelets that hug the stems and remain interesting over winter. At maturity, the stems turn violet, and the spikelets dry well before winter. Growth starts late in spring. 

Moorflamme Molinia is a sculptural 'grass' with a harmonious but distinct architecture. Plant en masse for a beautiful effect in a natural garden, or as a small hedge in a contemporary or rural garden. This grass withstands occasional drought well, allowing it to be featured in rockeries, alongside cotton lavenders for example. It will also flourish near water features, where it will help to stabilise the banks, alongside other grassesplume poppies, willowherbs, or sedges

The swollen base of the stems is used for pipe cleaners and toothpicks. In the wild, molinias are hosts to ergot, a cryptogamic disease of cereals which can cause serious neurological disorders due to the hallucinogenic alkaloids it contains. The only cereals not affected are maize and sorghum.

Molinia caerulea Moorflamme - Purple Moor-grass in pictures

Molinia caerulea Moorflamme - Purple Moor-grass (Plant habit) Plant habit

Flowering

Flower colour purple
Flowering time August to October
Inflorescence Spike
Flower size 20 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour green

Plant habit

Height at maturity 45 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Molinia

Species

caerulea

Cultivar

Moorflamme

Family

Poaceae

Other common names

Purple Moor-grass, Moor Grass

Origin

Cultivar or hybrid

Product reference18903

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Planting and care

Molinia caerulea Moorflamme adapts to all types of soil, as long as they are not more than slightly chalky. It prefers soils which are moist in summer, but tolerates moderate periods of drought well, and waterlogged soils during the growing season. This makes it an easy grass to grow. Plant it in a sunny position, or partial shade in regions with very hot summers. Water abundantly at planting, and avoid frost periods. Avoid excessive fertiliser. Remove damaged foliage during the growing season and cut back the clump in late winter, just before the start of vegetation.

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Planting period

Best planting time March, October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Pond edge
Type of use Border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Clayey (heavy), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, Damp soil, all types as long as they are not too chalky

Care

Pruning instructions Remove damaged foliage during the growing season and prune back in late winter, just before the start of new growth.
Pruning Pruning recommended once a year
Pruning time February to March
Disease resistance Very good
Overwinter Can be left in the ground

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