Indian Grass (Sorghastrum nutans): Native Plant Guide

Botanical NameSorghastrum nutans
Common NameWood grass, Indian grass
FamilyPoaceae
Plant TypePerennial
Mature SizeUp to 6 ft. tall
Sun ExposureFull
Soil TypeSandy, loamy, clay, well-drained
Soil pHAcidic, neutral, alkaline
Bloom TimeSummer, fall
Flower ColorYellow, orange
Hardiness Zones4, 5, 6, 7, 8, 9
Native AreaNorth America

Wood Grass Care

Providing wood grass gets plenty of full sun, this could be an easy to grow, relatively low-maintenance addition to your garden. It adapts well to a variety of soils, and it can cope with dry conditions and even occasional flooding. This plant reseeds easily and needs minimal attention once established.

The Spruce / Evgeniya Vlasova

The Spruce / Evgeniya Vlasova

The Spruce / Evgeniya Vlasova

Light

The one thing that wood grass really does need to thrive is a sunny position. Without full sun for much of the day, it won’t perform to its best potential. Ideally, the grass should be exposed to around six hours of direct sun every day.

Soil

This ornamental grass isn’t particular about the type of soil it’s planted in. Heavy clay and dry, infertile soils all still usually result in a good performance if the plant has access to the sun.

Its only preference is not to be consistently overly moist, so make sure the soil is well-drained. If this grass gets too much moisture, it can start to flop.

Water

Don’t be tempted to water your wood grass too frequently. This can result in sprawling stems that aren’t as strong. Once established, this plant is fairly drought tolerant and copes well in dry to medium conditions.

Temperature and Humidity

Warm-season grasses prefer a drier environment and mild temperatures. Optimum temperatures are around 85 to 95 degrees Fahrenheit, but anything over 60 degrees Fahrenheit usually produces decent results.

Fertilizer

Wood grass doesn’t need fertilizer to thrive. In fact, it’s best avoided as it can result in the roots becoming weak and overly long. The only time you might want to consider light fertilization is when you’re trying to get very young grass established.

Pruning

Cutting back wood grass to the ground in late winter to early spring can encourage more impressive growth next year. If you want to appreciate the grass in winter or allow the remaining seed-heads to act as feed for birds and other wildlife, wait until early spring before you do this. Just make sure you’ve done it before any new growth begins, as you shouldn’t cut the grass back in its first year of growth. If your garden is small, you may want to deadhead during the fall to prevent excess self-seeding.

Propagating Wood Grass

Wood grass does well being grown from seeds. Division is possible, but it isn’t recommended. The root system is sprawling, thick, and complicated, so it can be tricky to separate successfully.

How to Grow Wood Grass From Seed

This grass germinates easily from seeds. You can either sow them in the fall or stratify them before sowing them in the spring. These seeds need soil temperatures above 50 degrees Fahrenheit for germination to be successful, and the soil should be kept moist while establishing. Wood grass is a rapid grower and reaches maturity by its second year.

Common Pests and Plant Diseases

Wood grass can fall prey to aphids, spider mites, and spittlebugs. All can be remedied with insecticidal soap or neem oil.

Leaf spot diseases also like wood grass; they is a group of fungal diseases that can be cured by making sure the plant is neither overcrowded nor overwatered and applying a fungicide to diseased areas.

FAQ

  • As a result of its hardiness, clumping formation, strong rooting system, and ability to grow in infertile soils, wood grass can work well on slopes to prevent erosion.

  • Wood grass is highly flammable, and if you live in an area with a high risk for fire, it’s recommended that you do not plant this grass within the defensible space of your home.

  • A few flowers really stand out among wood grass, including asters, cosmos, cleomes, coneflowers, and salvia.

Disclaimer: Curated and re-published here. We do not claim anything as we translated and re-published using google translator. All images and Tattoo Design ideas shared only for information purpose.

Related Posts