Garden Forwardgrass
Giant feather grass
Stipa gigantea
Growing guidance
Horticultural figures below are practitioner estimates for planning, pending expert review. The botanical record further down is sourced and verifiable.
Current-climate suitability
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Future-climate resilience
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Sun
Full sun
Soil moisture
free-draining, average
Heat tolerance
Up to about 44°C
Cold tolerance
Down to about -20°C
Waterlogging tolerance
1/5
Drought tolerance
5/5
Mature size
1.5–2.2 m tall, 1.2 m spread
Seasonal interest
Early summer to autumn · Golden
Maintenance
low
Wildlife supported
General wildlife value 3/5 (verified species relationships are shown only where structured data exists)
Known risks or warnings
Needs space and full sun to stand upright.
Toxicity: none
Verified botanical record
- Accepted scientific name
- Stipa gigantea Ledeb., 1852
- Family
- Poaceae (Poales)
- Rank and status
- species · accepted
- GBIF record
- Taxon 7564641
Celtica gigantea, commonly called giant feather grass, giant needle grass or golden-oats, is a species of flowering plant in the grass family, Poaceae, native to the Iberian Peninsula and Morocco. Despite being renamed and placed within the genus Celtica, it is still widely referred to—both in horticultural literature and amongst gardeners—by its synonym, Stipa gigantea.
Description from Wikipedia — Celtica gigantea (CC BY-SA), shortened and unedited in substance.
Native status and geographic context
- United Kingdom: climate-suitable
- United States: climate-suitable
- Australia: climate-suitable
Native status is never inferred from climate similarity. Plants restricted or invasive in a jurisdiction are excluded from recommendations there.
Demonstration data. Climate, plant and retailer records shown here are realistic samples awaiting horticultural validation and live data connections.