Buffalograss

Buffalograss is extremely drought-tolerant once established, requiring only 1-2 inches of water per month during the growing season to stay green; it will go dormant and turn brown during extended dry periods, greening back up once moisture returns. Newly planted plugs or seed need consistent, light watering 2-3 times per week for the first 4-6 weeks to support root establishment, with frequency reduced as the grass matures. Avoid overwatering, as saturated soil can lead to root rot and encourage weed growth in establishing stands.

Buffalograss requires full sun, a minimum of 6-8 hours of direct, unfiltered sunlight daily, to grow densely and maintain vigor. It performs poorly in shaded locations, where it will become thin, sparse, and susceptible to weed encroachment, so plant it in open areas with no overhead shade from trees or structures.

This grass adapts to a wide range of soil types, including sandy, loam, and heavy clay soils, as long as the site has good drainage; it does not tolerate poorly drained, waterlogged soils for extended periods. It thrives in neutral to slightly alkaline soil pH between 6.5 and 8.5, and is highly tolerant of low-fertility soils, requiring no soil amendments in most native prairie or residential yard settings. Avoid heavy, compacted soils in low-lying areas that hold water for more than 24 hours after rainfall.

Buffalograss has very low nutrient requirements, and most established stands do not need regular fertilization; over-fertilizing will encourage weed growth and reduce its drought tolerance. If desired, apply a low-nitrogen, slow-release fertilizer at a rate of 0.5-1 pound of nitrogen per 1,000 square feet once per year in early summer, only if the grass appears pale or stunted. Avoid high-nitrogen fertilizers, as they can cause excessive top growth that weakens the plant's deep root system.

As a warm-season grass, buffalograss grows actively when temperatures are between 80-95°F (27-35°C), and will go dormant and turn brown once temperatures drop consistently below 50°F (10°C) in fall, remaining dormant through winter until spring soil temperatures rise above 60°F (15°C). It is extremely cold-hardy, tolerating winter temperatures as low as -30°F (-34°C) in its native range, making it suitable for USDA hardiness zones 3 through 9. It tolerates extreme summer heat well, showing no signs of stress even during extended periods of temperatures above 100°F (38°C) when established.

Unmowed buffalograss only reaches 4-8 inches in height, so mowing is entirely optional for naturalized areas; if used as a lawn, mow to a height of 2-3 inches 2-4 times per growing season, as needed. Avoid mowing shorter than 2 inches, as this can stress the grass, reduce its drought tolerance, and allow weeds to invade. Remove any dead, brown foliage in early spring before new growth emerges if desired, to improve appearance and speed up green-up.

Buffalograss can be propagated from seed, sod, or plugs, with plugs being the most reliable method for fast establishment in residential settings, as they have a higher survival rate than seed in non-ideal conditions. Plant seeds or plugs in late spring to early summer, when soil temperatures are consistently above 60°F (15°C), to give the grass the full warm growing season to establish roots before winter. Seeding requires a clean, weed-free seedbed, with seeds planted ¼ inch deep and kept moist until germination, which occurs in 7-14 days under optimal conditions.

Buffalograss is adapted to low to moderate humidity levels common in its native Great Plains range, and performs best in areas with relative humidity between 30-60%. It can tolerate short periods of high humidity, but extended periods of high humidity combined with wet soil increase the risk of fungal diseases such as leaf spot. Ensure good air circulation around the grass in more humid regions to reduce disease risk, and avoid overwatering during humid summer months.

Buffalograss is almost exclusively grown as an outdoor landscape or lawn plant, so repotting is rarely, if ever, necessary. If grown in a container for a specialized application, such as a green roof, repot every 2-3 years in early spring before new growth emerges, using a well-draining, sandy potting mix to avoid waterlogging. Trim back any overgrown stolons and divide large clumps during repotting to maintain the desired size and encourage vigorous new growth.