Giant Oats, Spanish Oats
Stipa gigantea

Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Stipa (STEE-pa) (Info)
Species: gigantea (jy-GAN-tee-uh) (Info)

Category:

Ornamental Grasses and Bamboo

Foliage Color:

Blue-Green

Bloom Characteristics:

Flowers are good for drying and preserving

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

6-8 ft. (1.8-2.4 m)

Spacing:

4-6 ft. (1.2-1.8 m)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Cream/Tan

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Evergreen

Smooth-Textured

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

By dividing the rootball

From seed; sow indoors before last frost

Seed Collecting:

Bag seedheads to capture ripening seed

Regional

This plant has been said to grow in the following regions:

,

Grand Junction, Colorado

Olympia, Washington

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Jul 11, 2015, Lodewijkp from Zwolle
Netherlands (Zone 7a) wrote:

beautiful beatiful beatiful and extremely hardy and foolproof. its big but not too big and is high enough to be in the shrub category. it is very vigorous, it has a winter interest appearance with high green / brown stems with oat like seeds appearance for many months sometimes throughout the year.

look greats on every spot that receives full sun , looks great in combination with ficus carica or any other mediterranean/ arid plant. i have it for 5 years now and it is still going strong. surely one of the best ornamental grass i have ever purchased.

Positive

On Jan 15, 2011, CosyMeadows from Lismore
Ireland wrote:

Looks fantastic with Verbena Bonariensis, this plant will flower after year 2, probably year 3. Also a good one to accompany this grass is Agastache Mexicana Sangria. SG looks amazing in the glow of the evening sun and a star of the grass border.