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Chasmanthium sessiliflorum (Longleaf woodoats)
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1 hour care
per year
per year
0.9m
Max height
Max height
0.6m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Chasmanthium sessiliflorum
Other names
Longleaf woodoats, Uniola sessiliflora, Southern woodoats, Chasmanthium laxum subsp. sessiliflorum, Chasmanthium laxum var. sessiliflorum, Uniola longifolia, Chasmanthium laxum, Longleaf spikegrass
Genus
Chasmanthium Chasmanthium
Species
C. sessiliflorum - C. sessiliflorum is a clump-forming, deciduous, perennial grass with upright to arching, broadly linear, mid-green leaves and slender stems bearing widely-spaced clusters of tiny, greenish-white flowers from summer to early autumn.
Chasmanthium sessiliflorum is: Semi evergreen
Habit
Clump-forming
Flower
Yellow-green in Summer; Yellow-green in Autumn
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Pests
Generally pest free
Diseases
Generally disease free
General care
Pruning
Cut back in early spring before new growth begins.
Propagation methods
Division, Seed
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Where to grow
Chasmanthium sessiliflorum (Longleaf woodoats) will reach a height of 0.9m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Low Maintenance, Waterside, Woodland
Cultivation
Grows in humus-rich, moist soil in partial shade. Will grow in full sun if summer are not too hot or dry. Tolerates drier conditions and slightly alkaline conditions.
Soil type
Clay, Loamy, Sandy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Neutral
Light
Partial Shade
Aspect
North, South, East
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
Botanical name
Chasmanthium sessiliflorum
Other names
Longleaf woodoats, Uniola sessiliflora, Southern woodoats, Chasmanthium laxum subsp. sessiliflorum, Chasmanthium laxum var. sessiliflorum, Uniola longifolia, Chasmanthium laxum, Longleaf spikegrass
Genus
Chasmanthium Chasmanthium
Species
C. sessiliflorum - C. sessiliflorum is a clump-forming, deciduous, perennial grass with upright to arching, broadly linear, mid-green leaves and slender stems bearing widely-spaced clusters of tiny, greenish-white flowers from summer to early autumn.
Native to
Southeastern United States
Foliage
Semi evergreen
Habit
Clump-forming
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Colour
Flower
Yellow-green in Summer; Yellow-green in Autumn
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Pests
Generally pest free
Diseases
Generally disease free
General care
Pruning
Cut back in early spring before new growth begins.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Chasmanthium sessiliflorum (Longleaf woodoats) will reach a height of 0.9m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Low Maintenance, Waterside, Woodland
Cultivation
Grows in humus-rich, moist soil in partial shade. Will grow in full sun if summer are not too hot or dry. Tolerates drier conditions and slightly alkaline conditions.
Soil type
Clay, Loamy, Sandy
Soil drainage
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Soil pH
Acid, Neutral
Light
Partial Shade
Aspect
North, South, East
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Clay, Loamy, Sandy | Tell us... |
| Soil drainage: | Boggy damp conditions, Moist but well-drained, Moisture-retentive | Tell us... |
| Soil pH: | Acid, Neutral | Tell us... |
| Light: | Partial Shade | Tell us... |
| Aspect: | North, South, East | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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