How to Grow Variegated Flax Lily

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Variegated Flax Lily

Dianella caerulea 'Gold Stripe'

grass

Dianella caerulea 'Gold Stripe' is an ornamental grass-like perennial featuring long, arching foliage with bold golden-yellow stripes running vertically along green leaves. It produces delicate blue flowers followed by attractive blue berries, adding multi-season interest to gardens. This Australian native is prized for its striking variegation and low-maintenance growing habits.

When should you plant Variegated Flax Lily in your zone?

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Example Variegated Flax Lily timeline · Pittsburgh, PA (Zone 6b)

Plant Variegated Flax Lily
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Variegated Flax Lily
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Variegated Flax Lily dates for your own zip code.

Growing Conditions

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Sun: Partial shade to full sun, 4-8 hours daily; tolerates shade but variegation is more vibrant in brighter light

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Water: Moderate watering; keep soil consistently moist but not waterlogged. Drought tolerant once established. Reduce watering in winter.

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Spacing: 18 inches

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Days to maturity: Ornamental grass; reaches mature size in 2-3 years

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Planting depth: Surface plant or 0.25 inches; do not bury crown

Soil

Type: Well-draining loamy to sandy soil

pH: 6.0-7.5

Amendments:

Compost Peat moss or coconut coir Coarse sand or perlite for drainage

Growing Zones

Find your zone →

Thrives in zones 8-11; can be grown in cooler zones with winter protection

8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

Establishment

3-6 months

Young plant with thin variegated shoots emerging from the base; foliage gradually lengthens and spreads outward.

Keep soil consistently moist. Provide shade cloth in hot climates during first season. Avoid transplanting stress.

Vegetative Growth

6-18 months

Clumps expand with increasingly long, arching leaves displaying prominent gold striping. Plant develops fuller form.

Water regularly but allow soil to dry slightly between waterings. Apply balanced fertilizer monthly during growing season. Remove dead or damaged foliage.

Flowering

4-8 weeks

Delicate purple-blue star-shaped flowers appear on thin stems rising above the foliage, typically in late spring to early summer.

Continue regular watering and feeding. Deadhead spent flowers if desired, though berries add ornamental value.

Fruiting & Berries

2-4 months

Small round berries develop where flowers were, ripening to a striking bright blue color that persists for several months.

Leave berries on plant for ornamental display and wildlife food. Reduce fertilizer. Maintain consistent moisture.

Dormancy & Maintenance

3-4 months

In cooler zones, foliage may yellow or bronze slightly in winter. Growth slows. Plant remains evergreen in warmer zones.

Reduce watering significantly. Cut back dead foliage only in early spring. In frost-prone areas, mulch around crown. Avoid pruning in late fall.

Companion Planting

Plan your garden →

Plant with:

Liriope Carex Heuchera Iris Hosta Astilbe Fern varieties Japanese Forest Grass

Avoid planting near:

Plants requiring dry conditions Xeric perennials Shallow-rooted competitors in small spaces

Common Pests

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Apply copper tape or diatomaceous earth around base; handpick at night; encourage predators like ground beetles
Spray with strong water stream; increase humidity; use horticultural oil or neem oil if severe
Remove by hand; apply horticultural oil in dormant season; spray insecticidal soap
Remove affected foliage; improve air circulation; avoid overhead watering; apply fungicide if widespread

Uses

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Border & Container Specimen

Ornamental

The striking golden variegation makes this an excellent focal point in shade gardens, borders, and large containers where its arching habit can be appreciated. [source]

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Pollinator & Bird Food

Wildlife

Blue flowers attract bees and pollinators, while bright blue berries provide nutritious food for birds and wildlife throughout fall and winter. [source]

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Low-Maintenance Groundcover

Landscape

Once established, Variegated Flax Lily requires minimal maintenance, thrives in poor to average soil, and is drought tolerant, making it ideal for sustainable landscaping. [source]

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Edible Berries

Culinary

The blue berries are edible and have a slightly sweet flavor; they can be eaten fresh or foraged by those in appropriate growing zones. [source]

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Floral Arrangements & Cut Foliage

Craft

Long variegated leaves and colorful berries are excellent for cut arrangements and add tropical texture to floral designs. [source]

Harvest Tips

This is an ornamental plant; no harvest in the traditional sense. Enjoy foliage year-round by removing dead or damaged leaves as needed. Cut back established plants in early spring if desired to rejuvenate and remove winter damage. Berries can be left on plant for wildlife or cut for indoor arrangements.

Fun Facts

🌱 Dianella caerulea is native to eastern Australia and parts of New Guinea, where it grows in open woodland and grassland environments.
🌱 The genus name 'Dianella' honors Diana, the Roman goddess of the hunt, possibly referencing the plant's delicate, graceful appearance.
🌱 The bright blue berries were traditionally used by Aboriginal Australians as food and natural dye sources for fiber arts.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Crown Deadhead Full Sun Mulch Partial Shade Perennial Transplant

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