Overview

Stipa tenuissima 'Pony Tails' is a clumping grass in the genus Nassella, part of the Poaceae family, with green to blue-green, fading to straw in winter foliage. Stipa tenuissima 'Pony Tails' grows best in full sun, and tolerates well-drained soils and any pH. Its UK hardiness is rated H5. Suggested uses include ornamental grass, borders and containers. It is native to south-western United States, northern Mexico and Argentina.

About

Nassella tenuissima is a species of grass known by the common names Mexican feathergrass, finestem needlegrass, fineleaved nassella, and Argentine needle-grass. It is native to the south-western United States, northern Mexico and Argentina.

Wikipedia contributors, CC BY-SA 4.0 — Nassella tenuissima

About the genus

Nassella, or needlegrass, is a New World genus of over 100 perennial bunchgrasses found from North America through South America. The Latin word nassa refers to "a basket with a narrow neck".

Growing conditions

Best soil and position for Nassella

Sunlight
full sun
Soil type
well-drained
Soil pH
Acid, Alkaline, Neutral
Soil moisture
dry to medium
Aspect
East-facing, South-facing, West-facing
Exposure
exposed
UK hardiness
H5

Plant details

Stipa tenuissima 'Pony Tails' size, habit and characteristics

Plant type
Grass
Habit
Clumping
Foliage
Green to blue-green, fading to straw in winter
Suggested uses
ornamental grass, borders, containers
Native to
south-western United States, northern Mexico, Argentina

Care notes

Pruning and caring for Stipa tenuissima 'Pony Tails'

Cultivation
Prefers well-drained soil and full sun; drought tolerant once established
Pruning
Cut back in late winter or early spring to encourage fresh growth
Propagation
seed, division
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

How do I grow Stipa tenuissima 'Pony Tails'?

Prefers well-drained soil and full sun; drought tolerant once established.

Where is the best place to plant Stipa tenuissima 'Pony Tails'?

Stipa tenuissima 'Pony Tails' prefers full sun. It suits exposed positions.

What soil does Stipa tenuissima 'Pony Tails' need?

Stipa tenuissima 'Pony Tails' grows best in well-drained soil. It is happy in soil of any pH. Aim for soil that stays dry to medium.

How do I prune Stipa tenuissima 'Pony Tails'?

Cut back in late winter or early spring to encourage fresh growth.

Is Stipa tenuissima 'Pony Tails' hardy in the UK?

Stipa tenuissima 'Pony Tails' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Stipa tenuissima 'Pony Tails'?

Seed, division.

From the Fenn Plants journal

More in the Nassella genus

Browse all Nassella →