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Pennisetum alopecuroides f. viridescens (Black-flowered fountain grass)

Intermediate
skill rating
2 hours care
per year
1m
Max height
1m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Pennisetum alopecuroides f. viridescens

Other names

Black-flowered fountain grass, Black-seeded fountain grass, Pennisetum alopecuroides var. viridescens, Pennisetum alopecuroides 'Viridescens', Dwarf purple fountain grass

Genus

Pennisetum Pennisetum

Species

P. alopecuroides f. viridescens - P. alopecuroides f. viridescens is a clump-forming, densely-tufted, evergreen perennial grass with arching, linear, flat, glossy, mid-green leaves turning golden-brown in autumn and bristly, purple-black flower spikes in late summer and early autumn.


Pennisetum alopecuroides f. viridescens is: Evergreen

Habit

Clump-forming

Flower

Purple, Flushed black in Summer; Purple, Flushed black in Autumn

Foliage

Mid-green in Spring; Mid-green in Summer; Yellow-brown in Autumn

How to care

Watch out for

General care

Pruning

Remove dead foliage and old flowered stems in spring.

Propagation methods

Division, Seed


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Where to grow

Pennisetum alopecuroides f. viridescens (Black-flowered fountain grass) will reach a height of 1m and a spread of 1m after 2-5 years.

Suggested uses

Beds and borders, City, Containers, Cottage/Informal, Low Maintenance, Planted in groups, Prairie planting

Cultivation

Plant in light, moderately fertile, moist but well-drained soil. May need winter protection in colder areas.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Tender in frost (H3), Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Pennisetum alopecuroides f. viridescens

Other names

Black-flowered fountain grass, Black-seeded fountain grass, Pennisetum alopecuroides var. viridescens, Pennisetum alopecuroides 'Viridescens', Dwarf purple fountain grass

Genus

Pennisetum Pennisetum

Species

P. alopecuroides f. viridescens - P. alopecuroides f. viridescens is a clump-forming, densely-tufted, evergreen perennial grass with arching, linear, flat, glossy, mid-green leaves turning golden-brown in autumn and bristly, purple-black flower spikes in late summer and early autumn.

Foliage

Evergreen

Habit

Clump-forming


Colour

Flower

Purple, Flushed black in Summer; Purple, Flushed black in Autumn

Foliage

Mid-green in Spring; Mid-green in Summer; Yellow-brown in Autumn

General care

Pruning

Remove dead foliage and old flowered stems in spring.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Pennisetum alopecuroides f. viridescens (Black-flowered fountain grass) will reach a height of 1m and a spread of 1m after 2-5 years.

Suggested uses

Beds and borders, City, Containers, Cottage/Informal, Low Maintenance, Planted in groups, Prairie planting

Cultivation

Plant in light, moderately fertile, moist but well-drained soil. May need winter protection in colder areas.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Tender in frost (H3), Hardy (H4)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Pennisetum alopecuroides f. viridescens (Black-flowered fountain grass)

Common pest name

Rice leaf nematode; Strawberry crimp disease nematode; White tip nematode; White tip nematode of rice

Scientific pest name

Aphelenchoides besseyi

Type

Nematode

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Damaging nematode affecting rice crops and strawberry production in warmer climates; could potentially present a threat to strawberry production and ornamental production in protected environments. But modern production practices seem to reduce likelihood of impacts. Pest is also regulated at EU level; which reduces likelihood of entry.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Tender in frost (H3), Hardy (H4) Tell us...

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