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Dwarf fountain grass 'Hameln'

Cenchrus alopecuroides 'Hameln' (formerly Pennisetum) · Poaceae Popular

Dwarf fountain grass 'Hameln' (Cenchrus alopecuroides 'Hameln' (formerly Pennisetum)) in flower
Photo: Photo by David J. Stang, via Wikimedia Commons (CC BY-SA 4.0)

A neat, arching mound topped with fuzzy bottle-brush plumes from late summer. The foliage turns golden in autumn.

Size
2½ ft tall, 2½ ft wide
Zones
5 to 9
Light
Full sun to part sun
Flowers
Late July to mid September
Pets
No toxicity recorded
Job in a bed
Specimen

A bed built around dwarf fountain grass 'Hameln'

The planner designed this bed around dwarf fountain grass 'Hameln' when this page was made: a 12 × 6 ft (3.7 × 1.8 m) naturalistic planting in zone 6, full sun. It chose the other plants from the 966 that suit those conditions, and says below why dwarf fountain grass 'Hameln' stands where it does.

A 12 × 6 ft (3.7 × 1.8 m) bed at eye level in late August: Dwarf fountain grass 'Hameln', Winter heath, Coral bells 'Firefly', Swamp milkweed 'Ice Ballet', Switchgrass 'Cheyenne Sky', Palm sedge, Grecian windflower, Hyacinth.
A 12 × 6 ft (3.7 × 1.8 m) naturalistic planting in zone 6, full sun, seen from the path in late August.
4. Swamp milkweed 'Ice Ballet'44. Swamp milkweed 'Ice Ballet'44. Swamp milkweed 'Ice Ballet'45. Switchgrass 'Cheyenne Sky'55. Switchgrass 'Cheyenne Sky'55. Switchgrass 'Cheyenne Sky'55. Switchgrass 'Cheyenne Sky'55. Switchgrass 'Cheyenne Sky'51. Dwarf fountain grass 'Hameln'13. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'32. Winter heath22. Winter heath22. Winter heath22. Winter heath22. Winter heath23. Coral bells 'Firefly'33. Coral bells 'Firefly'33. Coral bells 'Firefly'32. Winter heath22. Winter heath26. Palm sedge66. Palm sedge66. Palm sedge62. Winter heath22. Winter heath22. Winter heath27. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower7. Grecian windflower8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth8. Hyacinth
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Winter heath × 10, pink
  2. 3 Coral bells 'Firefly' × 8, red
  3. 4 Swamp milkweed 'Ice Ballet' × 3, white
  4. 5 Switchgrass 'Cheyenne Sky' × 5, purple
  5. 6 Palm sedge × 3, green leaves
  6. 7 Grecian windflower × 12, blue
  7. 8 Hyacinth × 12, yellow

Why this plant

  • The only plumes. The others are bells, airy sprays, flat plates and others. Shape reads at a distance, where colours blur.
  • The only cream. Cream sits between stronger colours and calms them.

Why here

  • In the middle. At 2½ ft it is seen over winter heath (10 in) in front of it.
  • One plant, alone. A feature plant is seen as an object, and needs clear ground around it.

Why now

  • In flower for 9 weeks. From late July to mid September.
  • Part of the bed's peak. With coral bells 'Firefly', swamp milkweed 'Ice Ballet' and switchgrass 'Cheyenne Sky' in late July: 4 kinds at once. No week has more.
  • Stands through winter. Left uncut, it holds its shape until March, when the perennials have gone.

Planned as a naturalistic planting: low grasses and groundcovers, the matrix, make up 62% of the planted ground. The flowering is at its height in late July, with 4 kinds out together. Switchgrass 'Cheyenne Sky' and swamp milkweed 'Ice Ballet' anchor the back corners of the bed: the tallest plants on the plan stand there.

The planner's own design check: 12 Excellent, 4 Good, 1 Satisfactory. It flags one thing to watch: Nothing on this plan is highly poisonous or an aggressive spreader.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where dwarf fountain grass 'Hameln' goes in a border

At 2½ ft it belongs in the middle of a bed. In the planner's ten height classes it is medium (24 in to 2½ ft).

Its job: specimen. A feature plant with a shape of its own. It stands alone with room around it, and repeats only at a distance.

A fountain shape that contrasts with stiff, upright plants. Plant it where the low autumn sun comes from behind and the plumes light up. Cut it down in early spring.

  • A soft, rounded grass for the middle of a sunny bed
  • Autumn plumes lit from behind by low sun
  • Softening shrubs and hard edges

What to plant with dwarf fountain grass 'Hameln'

Plants recorded as good partners for it, and what each pairing does:

  • Sedum 'Autumn Joy': in flower together for six weeks, from mid August; bold leaves against its fine ones.
  • Black-eyed Susan: in flower together for nine weeks, from late July.
  • Russian sage: in flower together for eight weeks, from late July; tall enough (4 ft) to stand behind it.

Questions about dwarf fountain grass 'Hameln'

Does dwarf fountain grass 'Hameln' need sun or shade?

Dwarf fountain grass 'Hameln' grows in full sun (6 or more hours of direct sun a day) and part sun (4 to 6 hours of sun, including some afternoon sun).

It wants ordinary well-drained soil, of average fertility, and a good soak in dry spells. Once settled in, it stands drought.

What zones does dwarf fountain grass 'Hameln' grow in?

USDA zones 5 to 9. It is hardy to zone 5, which means it survives winter nights down to about −10 °F (−23 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does dwarf fountain grass 'Hameln' flower in my zone?

In zone 5 it flowers late July to mid September. As a summer flower it moves about half a week for every zone: earlier where it is warmer.

Roughly when dwarf fountain grass 'Hameln' is in flower
Zone 5Late July to mid September
Zone 6Late July to mid September
Zone 7Mid July to mid September
Zone 8Mid July to mid September
Zone 9Mid July to mid September

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should dwarf fountain grass 'Hameln' be planted?

2½ ft (75 cm) apart, from the middle of one plant to the middle of the next. That is about its full width, so each plant keeps its own outline.

It grows 2½ ft (75 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many dwarf fountain grass 'Hameln' plants do I need?

At 2½ ft apart, set out in staggered rows:

  • 2 to fill 10 square feet (about 1 m²)
  • 5 for a single row 10 ft (3 m) long
  • 6 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as one, with clear ground around it: a feature plant is seen as an object, and a group of them is a thicket.

In the bed above, the planner used one in one group.

Is dwarf fountain grass 'Hameln' poisonous to dogs and cats?

No toxicity is recorded for dogs, cats, horses or people, according to NC State Extension.

"Not toxic" is not "edible": a pet that eats a lot of any plant can be sick.

Is there a native plant like dwarf fountain grass 'Hameln'?

Dwarf fountain grass 'Hameln' comes from East Asia, Western Australia. These North American natives come closest to doing its job:

Matched the way the planner's Swap button matches plants: the same job in a bed, then size, then flowering time.

Do deer eat dwarf fountain grass 'Hameln'?

Mostly not. NC State lists it as resistant to deer. No plant is proof against a hungry deer in a hard winter, but this one is low on the menu.

Will dwarf fountain grass 'Hameln' spread?

It seeds itself about; the risk of it taking over is moderate. Can self-seed in warm climates, and the species is listed as invasive in some regions. Check local guidance and remove the seed heads if seedlings appear.

What flowers after dwarf fountain grass 'Hameln'?

Dwarf fountain grass 'Hameln' is over by mid September. These start as it finishes and carry the same spot on, so it never goes flat:

What does dwarf fountain grass 'Hameln' look like in winter?

Dwarf fountain grass 'Hameln' turns the colour of straw and, left uncut, stands through the winter, with seed for the birds. Cut it down in late winter, before the new shoots come up.

Is dwarf fountain grass 'Hameln' good for bees and butterflies?

Dwarf fountain grass 'Hameln' is visited by songbirds.

More Cenchrus

In these guides

Zone guides: Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: July · August · September

Every fact on record

Type
Grass
Size
2½ ft (75 cm) tall, 2½ ft (75 cm) wide
Plant
2½ ft (75 cm) apart
Height class
Medium (24 in to 2½ ft)
Place in the bed
Middle
Flowers
Late July to mid September; feathery plumes; cream
Leaves
Fine texture, herbaceous; green
Shape
Arching, self-seeding
Hardy in
USDA zones 5 to 9
Light
Full sun, part sun
Soil
Average, well-drained
Water
Moderate
Feeding
None needed
Family
Poaceae
Comes from
East Asia, Western Australia
Attracts
Songbirds
Stands up to
Deer, drought, salt

Checked against NC State Extension. Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.