Longleaf Woodoats (Chasmanthium sessiliflorum) is a clumping perennial grass with attractive, open panicles of spikelets. It thrives in shady, moist environments and is n
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade to Full Sun
50% intensity
Thrives in dappled shade or morning sun, but tolerates full sun if soil remains moist.
Moderate
50% intensity
Keep soil consistently moist but not waterlogged. Reduce watering during dormancy.
Well-drained
50% intensity
Cold Hardy
25% intensity
Prefers moderate temperatures during the growing season. Tolerates freezing temperatures.
Low
25% intensity
Minimal fertilization needed; benefits from a light feeding in spring.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly during the growing season, especially in drier periods. Allow the soil to dry slightly between waterings.
Reduce watering in fall and winter to prevent waterlogged soil and root rot, as the plant enters dormancy or slows growth.
Prune back dead or damaged foliage in late winter or early spring before new growth emerges. Spent flower stalks can be left for winter interest and then cut back.
Minimal pruning is typically needed; focus on maintaining a tidy appearance and removing any diseased material.
Propagate primarily through division of established clumps in early spring. Gently separate the root ball into smaller sections, ensuring each section has roots and shoots.
Replant divisions immediately into well-draining soil and water thoroughly to encourage establishment.
This perennial grass is generally not suited for frequent repotting. If grown in a container, repot only when the plant becomes root-bound, typically every 2-3 years.
Repot in early spring using a slightly larger container with fresh, well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Longleaf Woodoats (Chasmanthium sessiliflorum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Chasmanthium |
| Species | Chasmanthium sessiliflorum |
Similar in genus Chasmanthium
Answers based on plant encyclopedia data
