How to Grow Red Tussock Grass

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Red Tussock Grass

Chionochloa rubra

grass

Red Tussock Grass is a striking native New Zealand ornamental grass that forms dense, fountain-like tussocks with distinctive reddish-bronze foliage that intensifies in color during cooler months. It grows 3-5 feet tall and wide, making it an architectural statement plant for landscapes. This evergreen perennial is prized for its dramatic color, texture, and ability to thrive in challenging alpine and subalpine conditions.

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Example Red Tussock Grass timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Red Tussock Grass

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Red Tussock Grass

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Red Tussock Grass dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily; afternoon shade in very hot climates (above zone 9)
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Water: Moderate water needs once established; drought-tolerant. Water regularly during first year to establish deep roots. Avoid waterlogged conditions, which can cause crown rot. Requires excellent drainage.
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Spacing: 36 inches
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Days to maturity: 2-3 years to reach full mature size
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Planting depth: Plant at soil level; do not bury the crown. Space 3 feet apart.

Soil

Type: Well-draining, rocky or gravelly soil; tolerates poor soils
pH: 5.5-7.0
Amendments:
Coarse sand Gravel or small stones Perlite for container growing Minimal organic matter to avoid rot

Growing Zones

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Thrives in zones 7-10; best in cooler mountain climates and areas with good air circulation

7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Establishment

Year 1

Young plant forms a small tussock with emerging bronze-tinged green foliage; root system developing.

Water regularly but allow soil to dry between waterings. Protect from strong winds. Do not apply heavy mulch around the crown.

2

Vegetative Growth

Year 2-3

Tussock expands, forming a denser mound; foliage becomes increasingly bronze and red, especially at leaf tips and bases.

Reduce watering frequency as plant establishes. Ensure excellent drainage. Remove any dead or damaged outer foliage. No fertilizer needed.

3

Mature Tussock

Year 3 onwards

Plant reaches full size with distinctive deep red-bronze coloring throughout, particularly intense during cool months (fall/winter).

Minimal maintenance required. Water only during extended drought. Avoid heavy feeding or amendments. Enjoy seasonal color intensification.

4

Flowering

4-6 weeks, summer

In late spring to early summer, tall, delicate silvery-bronze flower panicles emerge above the foliage, reaching 6-7 feet.

Allow flowers to develop and persist for landscape interest. No deadheading necessary unless you prefer a cleaner appearance.

5

Seed Development

Summer through winter

Flowers mature to produce seed heads with fine, feathery appearance; color fades slightly but remains ornamental.

Leave seed heads on plant through fall for visual interest and wildlife benefit. Remove in late winter before new spring growth.

Companion Planting

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Plant with:

Avoid planting near:

Moisture-loving plants requiring regular watering Plants that tolerate waterlogged soil Dense shade-providing trees that reduce air circulation Plants that drop heavy leaf litter (competition and crown rot risk)

Common Pests

  • Spray with neem oil or horticultural oil in early spring; prune out heavily infested foliage

  • Strong water spray to dislodge; apply insecticidal soap if severe; encourage beneficial insects

  • Improve drainage; avoid watering the crown; remove affected areas; ensure air circulation; do not overwater

  • Improve air circulation; remove infected foliage; avoid overhead watering; fungicide only in severe cases

Uses

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Architectural Specimen Plant

Landscape

Chionochloa rubra serves as a striking focal point in contemporary and naturalistic gardens, providing year-round structure, distinctive color, and movement in the landscape. Its impressive size and form make it ideal as a standalone feature or anchor plant in mixed borders. [source]

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Native Habitat & Wildlife Shelter

Wildlife

As a New Zealand native, this grass provides shelter and nesting habitat for birds and beneficial insects. The dense tussock structure offers protection from predators and harsh weather. [source]

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Dried Flower Arrangements

Craft

The feathery seed panicles can be cut and dried for use in floral arrangements and dried displays, maintaining their delicate structure and subtle coloring for several months. [source]

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Wind & Erosion Control

Household

The dense, deep-rooting tussock structure helps stabilize slopes and reduce erosion, particularly in alpine and subalpine gardens where it occurs naturally. Useful for hillside plantings and difficult terrain. [source]

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Cold & Altitude Tolerance

Landscape

Being naturally adapted to New Zealand's high mountain environments, Chionochloa rubra thrives where many ornamental plants struggle, making it invaluable for high-altitude gardens, mountain landscapes, and cool-climate regions. [source]

Harvest Tips

Not harvested for culinary or medicinal use. For ornamental purposes, collect mature seed heads in late winter (after frost) by cutting panicles at the base if desired for dried arrangements. Allow seed to naturally fall for self-seeding in favorable conditions.

Fun Facts

  • 🌱 Chionochloa rubra is native to the subalpine and alpine regions of New Zealand's South Island, where it has adapted to survive intense UV exposure, cold temperatures, and strong winds—all factors that contribute to its striking red coloration.
  • 🌱 The genus name 'Chionochloa' comes from Greek words meaning 'snow grass' (chion = snow, chloe = grass), reflecting its native habitat in snowy mountain regions where it can photosynthesize under low light conditions.
  • 🌱 The grass's distinctive red color intensifies during cooler months as the plant produces anthocyanin pigments—the same compounds responsible for red fall foliage in maples—as a natural sunscreen and cold hardiness adaptation.

Gardening Terms

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