Description
PENNISETUM ALOPECUROIDES
Picture this: it’s late August in Connecticut, and while your perennial borders are starting to look a little tired, your Fountain Grass is just getting going. Those feathery plumes catch the morning light like they’ve been woven from spun sugar, and by September, they’ll be putting on a show that rivals any flowering shrub in your garden. This is a plant that transforms the entire feel of a space—turning ordinary borders into something almost dreamlike, especially as the seasons shift and those plumes catch frost in October.
What it looks like
Fountain Grass lives up to its name with an elegant, fountain-like habit that’s immediately recognizable. Fine, deep green foliage rises 2 to 3 feet tall, then arches gracefully outward in a mounding form that softens hard edges and creates movement in the garden. The real magic happens in late summer when upright flower spikes emerge, topped with bottlebrush-like plumes that start out creamy pink or rose and gradually fade to a silvery bronze as they mature. In autumn, the entire plant transforms—foliage takes on warm golden and bronze tones that persist well into November in our Connecticut growing season. It’s a texture that photographs beautifully from any angle.
Growing it in your garden
Here’s what makes Fountain Grass such a reliable performer in New England: it’s not fussy about soil. While it prefers well-draining conditions, it tolerates everything from sandy loam to clay, as long as you’re not keeping it perpetually soggy. Full sun is ideal—at least six hours daily—and this is where the plant really shines, producing more robust plumes and better fall color. In part-shade situations, growth is slower and plumes are fewer, but it will still perform admirably. The key to success in Connecticut’s unpredictable winters is ensuring excellent drainage; standing water in winter is your biggest enemy here. Plant in spring or early summer to allow roots to establish before our first frost.
Through the seasons
Spring arrives quietly with Fountain Grass—it’s one of the latest ornamental grasses to emerge from winter dormancy, usually not showing growth until late April or May. Don’t be alarmed by this; it’s completely normal. Summer is when the plant establishes its framework, building the mound of fine foliage that becomes the garden’s backbone. Late July and August are the showstoppers, with flower spikes emerging steadily throughout late summer and September. The plumes provide visual interest and cut flowers for arrangements—they last beautifully in a vase for several weeks. Come October and November, the entire plant takes on warm tones and becomes a focal point for fall interest. Leave the dried stems and foliage standing through winter; they’re beautiful under snow or frost and protect the plant’s crown. Cut back to 2 to 3 inches from the ground in early spring, just as new growth emerges.
Where it shines
Fountain Grass excels as a specimen plant in mixed borders, where its height and movement complement sturdier perennials. It’s outstanding along pathways where morning sun can illuminate the plumes—there’s something magical about walking past backlit pampas-like plumes in early morning. It works beautifully at the edge of water features, where reflections double its visual impact. In smaller Connecticut gardens where space is limited, its upright growth habit means it takes up less ground space than its spread. Combine it with shrubs as a softening agent, or use it to create rhythm when repeated in drifts. It’s also excellent for container gardening—a single plant in a large container becomes an architectural element on a patio or deck.
Perfect companions
Fountain Grass pairs beautifully with late-season bloomers like Russian Sage (PEROVSKIA), coneflowers, and Limelight Hydrangea, where the soft texture of the grass complements their solid blooms. Combine it with other ornamental grasses like Little Bluestem or Karl Foerster Feather Reed Grass for a sophisticated textural display. For color contrast, plant it near burgundy-foliaged plants like Japanese Heuchera or Burgundy Knockout roses. Sedums and autumn bloomers like Asters create wonderful seasonal progression alongside Fountain Grass.
Care tips
This is genuinely low-maintenance. Water regularly during the first growing season to establish deep roots. Once established, it tolerates moderate drought, though occasional summer watering during Connecticut’s dry spells keeps it lush. No fertilizing necessary—in fact, rich soil can produce excessive foliage at the expense of plumes. Avoid cutting back in fall; wait until early spring when new growth is just beginning. If you live in a particularly windy site, staking isn’t usually necessary, but you can loosely tie back the foliage in late season if desired. Divide plants every 3 to 4 years in spring to rejuvenate older plants or to propagate.
Quick facts
- Hardiness Zone: Zones 5-9
- Mature Height & Spread: 2-3 feet tall, 2-3 feet wide
- Bloom Season: Late July through October
- Light Requirements: Full sun (6+ hours daily)
- Water Needs: Moderate; drought-tolerant once established
- Available at: Both our retail and wholesale locations