Molinia caerulea
Purple moor grass, Mountain's friend
- Height × spread
- 0.4m × 0.5m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This native grass makes tussocks: a foliage mound with erect and arching green leaves. It sends up vertical flowering spikes that open to slim panicles. The individual flowers within this are purple, though the colour hardly notices. It plays a quiet role all season but, in late autumn the leaves and flowers attain burnished hues that glow against the light. The grass has traditionally been used for fodder; but it is also potential host to the fungus that causes ergot of rye, cause of the plague of Holy Fire. The gardener is generally more interested in the variegated forms of this grass, but the species plant has a place in the wild garden. It is happiest in cool moist acidic sites but has some lime tolerance. It stands around 40cm (16in) high with a 50cm (20in) spread.
- Flower colour
- Purple
- Foliage colour
- Green
- Autumn foliage
- Gold-burnished
- Variegated
- No
- Scent
- No
- Shape
- Cube
- Height
- 0.4m
- Spread
- 0.5m
- Season of interest
- Summer
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Prairie garden
- Sun or shade
- Likes full sun, tolerates part shade, tolerates light shade
- Soil type
- Loam (normal)
- Soil pH
- Acid (ericaceous), Neutral
- Drainage
- Moisture retentive soil, Damp and wet soil, Well drained soil, Dry soil, Drought resistant
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders and containers
- Use for
- Ground cover, Bird attraction
- Hazards
- No
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring - late · Outdoors
Feed with sequestrol
If plants are acid loving and grown in soil with little acidity, or in a container, or are watered with limey tap water an annual feed with sequestrol (iron chelate) is highly beneficial. Follow guidelines on the packet. Will also 'blue-up' hydrangeas.
For hydrangeas that have good blue flowers in acid soil, this product can be used with alkaline soil to turn the flowers blue. This is most effective when the soil is neutral or just slightkly alkaline.
Spring-Autumn · Outdoors
Water during drought
After three or four weeks without rain, except for drought tolerant plants, those in the ground often get stressed. Adopt the habit of deep-watering one section of the garden each day. Check plants in pots more frequently, especially in hot weather.
Encourage plants to develop good root systems by giving occasional deep watering. Some plants, such as conifers and heathers, do not show much sign of distress so water these if in doubt.
Spring - early · Planting
Prune to the ground
Cut foliage to the ground before new growth starts.
Where stems are grown for their ornamental value, old stems should be removed either before new growth starts in spring, or during winter when they begin to look ragged or untidy.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Planting & general
Outdoors
Water with rain water
This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.
Found in
More Molinia
Molinia caerulea 'Variegata'
Purple moor grass, Mountain's friend
Molinia
Moor grass
Molinia caerulea 'Banshee'
Purple moor grass
Molinia caerulea 'Karl Foerster'
Purple moor grass, Mountain's friend, Tall purple moor grass
Molinia caerulea 'Moorhexe'
Purple moor grass, Mountain's friend
Molinia caerulea 'Poul Petersen'
Purple moor grass
Molinia caerulea 'Transparent'
Purple moor grass, Mountain's friend, Tall purple moor grass
Molinia caerulea 'Windspiel'
Purple moor grass, Mountain's friend, Tall purple moor grass