Species blue oat grass
narrow, spiky, long, blue-green colored, needle-like leaves

blue oat grass

Helictotrichon sempervirens 'Saphirsprudel'

Blue oat grass has beautiful, steel-blue foliage that provides great architectural interest for your garden. It has long, stiff blades that form an upright growth habit, and reaches heights of approximately three feet tall in optimal SunLight conditions. It can tolerate both droughts and relatively moist soil. It is ideal for xeriscapes or rock gardens due to its drought tolerance. It is also deer resistant and salt tolerant. It is a perennial cool-season grass, and as temperatures begin to rise the foliage will slowly turn tan and eventually cease its growth in hot summer months. It may still send up a few last stems that bloom beautiful white-colored seed heads in early summer. Blue oat grass is easy to maintain with minimal pruning and can bring life to any garden with its lush texture and color.

Cycle:

Perennial

Watering:

Average

Propagation:

Division,Seed Propagation,Cutting,Layering Propagation

Hardiness Zone:

4 - 8

Flowers:

Bluish brown Flowers In Summer

Sun:

Full sun

Leaf:

Yes

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Blue oat grass should be watered deeply and infrequently, to encourage a deep root system. Water it once a week, in the early morning or late afternoon. Give the soil a good soaking, until it is moist to the touch about 4 inches (10 cm) down. If the soil does not stay moist, water it more often. In hot climates, it may need to be watered twice a week. During the summer, blue oat grass may need up to 1 inch (2.5 cm) of water each week. In the winter, it may only need to be watered once every 2 weeks, if the temperatures remain mild.

sunlight

Blue oat grass (Helictotrichon sempervirens 'Saphirsprudel') is a species of grass that enjoys full sun. In the summer months, blue oat grass will benefit from more sunlight, up to 8 to 10 hours of direct sunlight daily. During the winter months, the plant will do well in slightly less sunlight, about 4 to 6 hours daily.

pruning

For best results, prune in spring just before new growth appears, or in late summer. Begin pruning by removing any dead foliage at the base of the grass. Using sharp pruning shears, thin out the entire plant by cutting back the foliage to the desired size. Avoid cutting back more than 1-third of the foliage at a time. It is also important to leave some foliage to protect the crown of the grass and help it recover quickly.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Blue oat grass typically starts flowering in late spring, usually in May or June.

Starts Flowering

Blue oat grass typically starts flowering in late spring, usually in May or June.

Hardiness Map