One of the prettiest medium size fountain grasses, Karley Rose looks great in any garden habitat you want to plant it in. It is especially appreciated when morning or evening sunlight shines on it from behind as the feathery fronds and seedheads seem to glow. Soft fuzzy pink plumes nod on the end of slender stems with dark green leaves, providing a soft background to bright colorful perennials or annuals.
Native to Asia as the Latin name indicates, Pennisetum orientale is one of the hardier grasses for cold winter regions in Zones 5-9. It is also one of the earliest to bloom, as well as being a fast grower once planted. There are many reasons to include Karley Rose in your garden this spring.
Harsh winter region gardeners can enjoy Karley Rose as an annual where it will quickly grow to size instead of taking years to mature. Flowers arrive on the scene in late summer and last for several months, then persist as seed heads well into fall. Birds are attracted to their seed heads. Pennisetum requires a well draining soil, but from there, it is an easy care perennial.
Average to fertile soil is generally preferred, with an acidic to neutral pH range of 5.8 to 6.2. Water every week when first established, then only when natural rainfall is less than one inch per week. Karley Rose is drought tolerant once established. Coastal gardeners will appreciate its salt tolerance. Fertilization is generally not needed, but should you feel your soil is too poor, add a thin layer of well composted organic material.
Deadheading is not necessary and will not affect the production of flowers. Pruning is generally not needed. Remove any dead or yellowed stems or leaves down to the soil and cut clump down to a couple of inches in early spring before new growth emerges. In marginal cold winter areas, an application of a good quality mulch will help to protect the root zone.
Space your plants about 24 to 36 inches apart. This gives the plant the room to spread out. The footprint of your Karley Rose will be small, but it will grow to 40 inches tall and the top will fountain out to 36 inches wide, creating the waterfall look that is so sought after by gardeners.
We want your plants to arrive in great condition! Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. Pre-ordered plants are scheduled to ship in Spring 2026. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Note: These are only estimated ship dates. Note: Only plants indicated as pre-order will ship as shown above. AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations.
Dancing in the wind with the slightest breeze, Karley Rose Fountain Grass is a showstopper. Purple-tinged plumes erupt from thin, rich green foliage mid to late spring and amass for months until frost. Oblivious to pests and drought tolerant, this is one ornamental grass worthy of a place in many gardens. Yet as with all things, those that seem too good to be true have a downside and Karley Rose is no different.
Discovered in 1994 by David George Skwiot at the Sunny Borden Nurseries in Kensington, CT USA, this variety of Pennisetum was noted to have a more unique purple-lavender bloom than others along with a more erect and extended blooming habit. Due to these desirable qualities, Skwiot asexually propagated the plant by division and patented the plant in 2002 naming it after his daughter. It is stated the resulting plants are identical to the original parent plant!
Karley Rose is a sun-loving plant. We utilized a total of 8 to flank our front walk and they have thrived with no additional watering once established. Ranked for Zones 5-9, ours live in a due West location and never look stressed in the Tennessee summer when temperatures are soaring over 95 degrees Fahrenheit.
When emerging from dormancy in the early spring, the initial leaves resemble an unsightly weed however this phase is short-lived as they transform quickly in warm temperatures. Even with everything Karley Rose has going for it, there is one downside to this plant which may make one second guess reserving a spot for it in the garden, specifically when Mother Nature decides to rain. The plants are known to flop!
While the plumes are quite light and airy, the excessive foliage and height of the plants frequently bend in heavy rain causing a once gorgeous plant to look unsightly and overgrown. Left unaddressed, the plants have a tendency to right themselves once dried however at upwards of 4 feet tall, not all portions return to normal. This begs the question must this ornamental grass be left to it’s own devices or actively managed throughout the growing season?
Unfortunately, for a more manicured look and flop-prevention, the latter is the case. While this is not something one would necessarily think about when choosing an ornamental grass, for Karley Rose, it is something to keep in the forefront of your mind. The best angle of attack to address the issue is to utilize a hedge trimmer and trim the plants every 2-3 weeks as needed.
As our grasses flank our front walk, I trim up the sides to eliminate any leaning or overgrowth stems/foliage and then give them a good buzz cut in the middle of the summer. While the buzz cut eliminates all the plumes at the time, it prevents the grass from getting to it’s max height and allows for a more resilient stem when it rains. Worthy of a spot in your garden? It very well may be a stellar addition. With the understanding of it’s unkempt side, it can be a great choice for a pop of texture in a naturalized garden left to grow to it’s heart content or perfect for a more formal use as a hedge or border plant.
If anything though, be sure to place it in a spot where the sun can illuminate the purple plumes for an awe-inspiring look! Do you have Karley Rose Fountain Grass in your landscape or may be considering it? Feel free to leave a comment below or even drop me a line!
Uniform, upright clumps of gracefully arching, deep green foliage erupt into soft rose-purple plumes from early summer until frost. The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours). This grass will be a focal point wherever it's planted, but is especially beautiful when the plumes are backlit by the early morning or late afternoon sun. Gorgeous. My garden wouldn't be the same without them!
I included them among the pink and red flowers in a village garden, and the subtle pink of the feather "blooms" are the perfect companion, underplanted with pink groundcover Zinnia Zahara 'Raspberry Ripple'. In the morning and evening, the slanting sun backlights the feathers and makes them glow. Even without clear skies, the waving feathers add motion to a garden that would otherwise be still. These plants shipped in perfect condition and really took off, managing in the drought of our northeast summer like champs. These grasses are beautiful. Such a pretty fountain of grass with brown/beige and purple tinged plumes. Tripled in size quickly while keeping its great shape.
Karley Rose' Fountain grass (Pennisetum orientale) brings five months of color, texture, and motion to your sun garden. Smokey-pink flower spikes arch gracefully over green foliage and sway in the breeze. Worry less knowing this grass is easy to grow and deer resistant! Once established, they effortlessly take on heat, humidity & punishing sun. Soil: Easily grown in average, medium to moisture, well-draining soils. Light: Sun (> 6 hours sun). Water: Average. Fertilizing: Fertilizer is generally not recommended, as excess nutrients can cause lodging or flopping over. Winterizing: Can leave foliage standing for winter.
Ornamental grasses are invaluable additions to the landscape, but we don’t think they get enough credit. They rustle in the breeze, produce plumes of flowers, and add interest through the winter. What’s not to love? Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space to the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. Not sure just how many plants will fit in your garden? Simply update the values and the calculator will re-calculate accordingly.
How to Plant an Ornamental Grass
Key facts at a glance
- Height: up to 40 inches tall, with a fountain 36 inches wide
- Spread: clumps about 24-36 inches apart
- Flowering: late summer to frost, with purple-tinged plumes
- Light: full sun to part sun acceptable
- Soil: well-draining, average to fertile, pH 5.8-6.2
- Water: establishment weekly, then drought tolerant
- Maintenance: pruning not required, occasional trimming to prevent flop
Practical considerations for growers
To keep the powerful fountain effect while managing flop, consider periodic hedge-trimmer pruning every few weeks in peak season. In harsh winter areas, mulch helps protect the root zone. Space guidance and height expectations help in planning borders or hedges, whether for a naturalized look or a more formal edge.