Drought tolerant ornamental grasses give Pennsylvania yards texture, movement, and color without a daily hose routine. Once their roots settle in, many of these perennial ornamental grasses handle dry summer spells on normal rainfall. Their foliage shifts through green, blue, bronze, and gold, and their seed heads catch wind and low winter light. They work in borders, on slopes, in mass plantings, and as seasonal screens. Not every grass suits every yard, though. Sun, drainage, and mature size decide which of the 12 below will do well in Bucks and Montgomery County landscapes.
Why Choose Drought-Tolerant Ornamental Grasses for Your Yard?
These grasses suit low-water landscaping because deep, fibrous roots let established plants cope with dry stretches. Most need little more than an annual cutback, which makes them reliable low-maintenance garden plants. The hardy ornamental grass research from Chicago Botanic Garden shows how much hardiness, form, and performance vary between species, so choosing carefully pays off.
Clumping ornamental grasses stay put and form tidy mounds, so they rarely need edging. They look good from late summer through winter, when many perennials have faded. Native types also give birds seed and cover, and caterpillars of some skipper butterflies feed on certain species.
Drought tolerant does not mean maintenance-free. New plants need regular watering through their first growing season, and even established clumps appreciate a soak during a long dry spell.
12 Drought-Tolerant Ornamental Grasses Worth Considering
Heights below include flower stalks unless noted. All are perennial and clump-forming unless stated. Several come from the Great Plains or the Southeast, so we note where a grass is native to Pennsylvania and where it is not.
| Ornamental Grass | Mature Height | Sunlight | Drought Tolerance | Best Landscape Use |
| Little Bluestem | 2 to 4 ft | Full sun | High once established | Borders, slopes, meadows |
| Switchgrass | 3 to 6 ft | Full sun to part shade | Moderate to high | Screens, mass plantings |
| Prairie Dropseed | 2 to 3 ft | Full sun | High with good drainage | Edging, accents, paths |
| Blue Grama | 1 to 2.5 ft | Full sun | High with sharp drainage | Dry sunny beds |
| Purple Lovegrass | 1 to 2 ft | Full sun | High in sandy soil | Naturalized areas, edges |
| Big Bluestem | 4 to 7 ft | Full sun | High | Screens, large meadows |
| Indiangrass | 4 to 7 ft | Full sun | Moderate to high | Screens, back borders |
| Bottlebrush Grass | 2 to 4 ft | Part to full shade | Moderate (dry shade) | Woodland edges |
| Karl Foerster Feather Reed Grass | 4 to 5 ft | Full sun to part shade | Moderate | Vertical accents, screens |
| Crinkled Hairgrass | 1 to 2 ft | Part shade to sun | Moderate | Dry shade, groundcover |
| Sideoats Grama | 1.5 to 3 ft | Full sun | High with good drainage | Slopes, naturalized beds |
| Pink Muhly Grass | 2 to 3 ft | Full sun | High with good drainage | Accents, mass plantings |
We replaced blue fescue and June grass from the starting list. Blue fescue often struggles in humid Mid-Atlantic summers and wet winter soil, and June grass is short-lived and hard to source.
1. Little Bluestem (Schizachyrium scoparium)
Native to Pennsylvania. It reaches 2 to 4 feet tall and 1 to 2 feet wide, with blue-green summer blades that turn copper and rust in fall. Fluffy silver seed heads follow. It prefers full sun and lean, well-drained soil. Rich soil makes it flop. Cut it back in late winter. It works well on slopes, in borders, and in meadow plantings, and it is one of the most dependable ornamental grasses for dry soil here.
2. Switchgrass (Panicum virgatum)
Native. Expect 3 to 6 feet tall and 2 to 3 feet wide, depending on the cultivar. Upright types such as ‘Northwind’ hold their shape well. It tolerates clay, dry spells, and occasional wet feet, though it grows lusher with some moisture. Airy seed panicles appear in late summer. It self-seeds modestly. Cut it back in late winter. Use it in masses or as a tall ornamental grass at the back of a bed.
3. Prairie Dropseed (Sporobolus heterolepis)
Native to North American prairies but rare in wild Pennsylvania. It forms a fine-textured 2 to 3 foot mound with arching blades that turn orange-gold in fall. Late-summer flowers have a faint scent. It needs full sun and good drainage, and it establishes slowly, so patience is required. It resists heavy, wet clay. Trim in late winter. It is lovely along walkways and at bed edges.
4. Blue Grama (Bouteloua gracilis)
Non-native here, since it comes from the Great Plains. It grows 1 to 2.5 feet tall, with fine gray-green foliage and eyelash-shaped seed heads held sideways. It excels in hot, dry, sunny spots with sharp drainage. Humid summers and heavy clay can cause decline. Cut back in late winter. It suits dry sunny beds, rock gardens, and gravelly borders, but it is not a first choice for dense clay.
5. Purple Lovegrass (Eragrostis spectabilis)
Native. This low grass reaches 1 to 2 feet and produces a haze of purple-red flower clouds in late summer. It prefers full sun and sandy or average, well-drained soil. It is short-lived and self-seeds freely, so it can wander in loose soil. Mow or cut it back in late winter. Plant it at the front of dry beds, along edges, or in naturalized areas.
6. Big Bluestem (Andropogon gerardii)
Native. It grows 4 to 7 feet tall and 2 to 3 feet wide, with blue-green foliage that turns burgundy and bronze. Flower heads have three branches that resemble a turkey foot. It tolerates drought, heat, and many soils, but rich soil makes it flop. Cut it back in late winter. It works for large meadows and seasonal screens. Give it room, because it is a big plant.
7. Indiangrass (Sorghastrum nutans)
Native. It reaches 4 to 7 feet tall and 2 to 3 feet wide. Blue-green blades turn gold, and showy bronze-gold plumes appear in late summer. It handles dry and clay soils but does better with some moisture, so drought tolerance is moderate to high. ‘Sioux Blue’ is a popular, slightly shorter cultivar. Cut it back in late winter. Use it behind shorter perennials or in a screen planting.
8. Bottlebrush Grass (Elymus hystrix)
Native woodland grass. It grows 2 to 4 feet tall and 1 to 2 feet wide, with bristly, bottlebrush-like seed heads in summer. It prefers part to full shade and tolerates dry shade once established, but it is less drought tolerant than the prairie grasses. It self-seeds lightly. Cut back in late winter or spring. Plant it under trees and along woodland edges.
9. Karl Foerster Feather Reed Grass (Calamagrostis x acutiflora ‘Karl Foerster’)
A non-native hybrid that is sterile, so it does not self-seed. It forms an upright clump 4 to 5 feet tall and 2 feet wide. Feathery plumes appear in early summer and persist into winter. This cool-season grass tolerates clay and moderate dryness, but it grows best with some summer moisture. Cut it back in late winter. It gives strong vertical lines and a narrow screen.
10. Crinkled Hairgrass (Deschampsia flexuosa)
Native to northern and mountainous areas, including Pennsylvania. It forms a soft tuft 1 to 2 feet tall and wide, with glossy fine leaves and a coppery haze of seed heads. It prefers part shade and acidic, well-drained soil. It tolerates dry shade but may fade in hot, humid summers. Remove tatty foliage in spring. Plant it in small groups as a cool-season groundcover.
11. Sideoats Grama (Bouteloua curtipendula)
Native to much of the central and eastern United States, though uncommon in Pennsylvania’s wild landscapes. It grows 1.5 to 3 feet tall, with seed oats lined up along one side of each stem. It needs full sun and good drainage and tolerates dry conditions well. It struggles in wet clay. Cut back in late winter. It fits slopes, naturalized beds, and sunny borders.
12. Pink Muhly Grass (Muhlenbergia capillaris)
Native to the eastern and southeastern United States, but not to Pennsylvania. It forms a 2 to 3 foot mound, and airy pink plumes rise to about 3 to 4 feet in fall. It needs full sun and well-drained soil. Wet clay in winter is its main enemy, and it is borderline in colder microclimates, so site it carefully. Cut back in late winter. It looks best in mass plantings.
Grasses to avoid: Chinese silver grass (Miscanthus sinensis) is invasive in parts of Pennsylvania, and some fountain grasses and Mexican feather grass can also seed widely. They look easy, but they cause problems later.
Which Tall Ornamental Grasses Are Best for Privacy?
Tall ornamental grasses for privacy work well as seasonal screens. Switchgrass, big bluestem, Indiangrass, and Karl Foerster feather reed grass all reach 4 feet or more. The tall ornamental grasses for screening guidance from the RHS show how height and habit affect their use.
Space big bluestem and Indiangrass about 2 to 3 feet apart, and switchgrass about 2 to 3 feet. Plant in staggered rows or drifts of at least three. Expect a dense screen in the second or third season, because most warm-season grasses grow slowly in spring and then surge in summer.
The limits matter. These are deciduous perennials, so they emerge in late spring and reach full height by midsummer. Warm-season grasses usually stay standing through winter, but they thin and bend under snow. They do not give year-round privacy. Where you need that, mix them with evergreens and use the grasses for summer and fall softness.
How to Choose the Right Ornamental Grass for Your Yard
Sunlight. Match the grass to the real light on your site. Most grasses on this list want full sun. Bottlebrush grass and crinkled hairgrass handle shade better.
Soil drainage. Many dry-climate grasses rot in soggy clay. Blue grama, sideoat’s grama, prairie dropseed, and pink mulberry need good drainage. Switchgrass and Indiangrass tolerate heavier soils.
Space. Check mature height and spread before planting. A 6-foot grass near a window or walkway will cause trouble.
Privacy needs. Choose tall, upright grasses for screening, not low border types.
Maintenance. Clumping grasses stay tidy. Purple lovegrass and some switchgrass seed around, so site them where that is welcome.
Climate. Southeastern Pennsylvania suits most grasses here, but microclimates vary. Confirm hardiness for your exact spot. Layering grasses with perennials and shrubs also helps, and our front yard landscaping design ideas show how bed layers can work together.
How to Plant and Establish Drought-Tolerant Ornamental Grasses
Pick the site first, based on sun and drainage. Loosen compacted soil, and add coarse compost only if the soil is very poor. For heavy clay, plant on a slight mound or amend a wide area rather than a small hole, so water does not collect around the roots.
Dig a hole as deep as the root ball and two to three times as wide. Set the crown level with the soil, not buried. Space plants according to mature spread and do not crowd them. The ornamental grass planting and care guidance from the RHS offers more on planting and watering.
Water deeply once or twice a week for the first few weeks, then taper off. Keep watering through the first growing season whenever rain is scarce. Add 2 inches of mulch, keeping it away from the crown. Check new plants weekly in summer.
How to Maintain Ornamental Grasses With Minimal Effort
Cut warm-season grasses such as switchgrass, bluestems, and Indiangrass back in late winter, before new growth starts. Leave the foliage over winter for interest and for wildlife. Cool-season grasses such as feather reed grass and crinkled hairgrass can be tidied in late winter or early spring.
Pull out dead or damaged blades by hand. Divide a clump when the center dies out or it outgrows its space, usually every 3 to 5 years for warm-season grasses, and do it in spring.
Skip fertilizer. Rich soil makes grasses floppy. Cut off seed heads of self-seeders before they ripen, or pull seedlings in spring. In a prolonged drought, soak established plants deeply. Space them so air moves through the clumps.
Common Mistakes to Avoid When Growing Ornamental Grasses
The biggest mistake is skipping the mature size. A compact bed can disappear under a 6-foot grass. Another is placing sun-loving grasses in shade, where they flop and thin out.
Ignoring drainage causes many failures, especially with blue grama and pink mulch in clay. Assuming drought tolerant means no water, it also kills new plantings. Overcrowded beds trap moisture and invite disease. Aggressive spreaders and self-seeders, like Miscanthus, need careful thought.
Cutting back in fall removes winter structure. Expecting full year-round privacy from deciduous grasses leads to disappointment. For more on planning errors, see these common landscaping mistakes homeowners make.
Are Drought-Tolerant Ornamental Grasses Right for Your Landscape?
They suit many styles, from modern foundation plantings to meadow-like backyards, and they pair well with coneflower, black-eyed Susan, and sedum. They are a good fit for sunny, well-drained areas and for homeowners who want water-wise garden design.
A plan helps. Height, color, texture, spacing, and drainage all need to fit together, and mistakes are costly once a bed is planted. Professional landscape design and installation can match grass choices to your property and how much upkeep you want.
Create a Beautiful, Low-Maintenance Landscape With Leading Edge Landscape & Design
Leading Edge Landscape & Design serves homeowners in Bucks and Montgomery counties, Pennsylvania. The company provides custom landscape design and installation, along with planting services. It also offers landscape maintenance and related outdoor services. These services can help you choose and place drought tolerant ornamental grasses that suit your sun, soil, and upkeep preferences. If you are planning a new bed or rethinking an existing yard, you can explore the company’s landscape design and planting services or request a consultation to talk through your options.
Create a Beautiful Landscape With the Right Ornamental Grasses
Choosing the right drought tolerant ornamental grasses can make your yard more attractive while reducing ongoing watering and maintenance needs. Varieties such as little bluestem, switchgrass, and prairie dropseed offer different heights, textures, and seasonal colors to suit various landscape styles. Consider your soil, sunlight, available space, and local growing conditions before selecting plants.
For a well-planned outdoor space, Leading Edge Landscape & Design offers custom landscape design, planting, and maintenance services in Bucks and Montgomery counties. The right plant selection can help create a landscape that looks beautiful throughout the seasons.
Frequently Asked Questions
Q. What are the most drought-tolerant ornamental grasses?
Little bluestem, big bluestem, switchgrass, sideoats grama, and prairie dropseed are dependable choices once established. Blue grama also performs well in sunny locations with well-drained soil.
Q. Which tall ornamental grasses are best for privacy?
Switchgrass, big bluestem, and Indiangrass are excellent for seasonal privacy screening. Depending on the variety, they can reach 4 to 8 feet tall.
Q. Do ornamental grasses need watering after they are established?
Established ornamental grasses generally need watering only during prolonged dry periods. Newly planted grasses require regular watering during their first growing season.
Q. When should ornamental grasses be cut back?
Cut back most warm-season grasses in late winter or early spring before new growth appears. Cool-season varieties may need earlier trimming or occasional cleanup.
Q. Does Leading Edge Landscape & Design offer professional planting and landscape design services?
Yes. Leading Edge Landscape & Design offers custom landscape design, installation, planting, and maintenance services throughout Bucks and Montgomery counties, Pennsylvania.
