How to Grow Grevillea

Grevillea

Grevillea spp.

shrub

Grevillea is a diverse genus of Australian native shrubs and small trees known for their distinctive spider-like or needle-like flowers in shades of red, pink, orange, yellow, and cream. These evergreen plants are highly attractive to birds and pollinators, particularly honeyeaters. They are drought-tolerant once established and thrive in well-drained soils with minimal maintenance.

Looking for a specific variety?

Robusta Moonlight Superb Coastal Gem Juniperina Compacta Pink Pearl Red Sunset

Growing Conditions

☀️

Sun: Full sun, 6-8 hours daily for best flowering; some varieties tolerate partial shade

💧

Water: Low to moderate water needs once established. Water regularly during first growing season to establish deep roots. Drought-tolerant afterward; reduce watering in winter. Avoid waterlogged conditions and overwatering, which can cause root rot.

📏

Spacing: 36-96 inches

📅

Days to maturity: 18-24 months to flowering (varies by variety)

🌱

Planting depth: Plant at same depth as nursery container; do not bury collar

Soil

Type: Well-draining sandy or loamy soil; poor to moderately fertile soil

pH: 5.5-7.0

Amendments:

Perlite or coarse sand for drainage Avoid heavy organic matter and compost Minimal fertilizer needed

Growing Zones

Find your zone →

Thrives in zones 8b-11; many varieties tolerate zone 8a with protection

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

Growth Stages

Establishment

3-6 months

Young transplants with initial leaf growth and root system development

Water regularly to establish deep roots. Provide afternoon shade in hot climates during first summer. Stake if needed for tall varieties. Avoid fertilizing or apply very light application.

Vegetative Growth

6-12 months

Increasing branch structure, fuller foliage, and establishment of shrub shape

Prune lightly after flowering to shape plant and encourage bushier growth. Remove any dead or crossing branches. Continue moderate watering. Do not over-fertilize.

Flowering

4-12 weeks per flowering cycle

Distinctive spider-like or needle-clustered flowers in vibrant colors appearing on branch tips

Enjoy the blooms without heavy pruning during flowering period. Some varieties flower year-round in warm climates; others in spring or fall. Deadhead spent flowers if desired to encourage more blooms.

Fruiting

6-8 weeks

Small follicles develop after flowers fade, containing seeds for propagation

Allow seed pods to dry on plant if saving seeds. Collect dried pods and extract seeds for propagation. Most gardeners focus on the flowering display rather than seed collection.

Mature Shrub

2+ years onward

Established plant reaching mature size with consistent flowering and dense foliage

Minimal watering needed except during drought stress. Occasional pruning to maintain shape. Very low maintenance once established. Tolerates poor soil and coastal conditions well.

Companion Planting

Plan your garden →

Plant with:

Banksia Leptospermum Callistemon Westringia Rosemary Lavender Pittosporum Native grasses

Avoid planting near:

Plants requiring frequent deep watering Water-loving shrubs like azaleas Nitrogen-fixing legumes Heavy feeders requiring rich soil

Common Pests

Spray with water to dislodge; use miticide if severe. Improve air circulation around plant.
Remove by hand or prune affected branches. Apply horticultural oil spray during dormancy or on crawlers.
Spray with insecticidal soap or neem oil. Encourage natural predators like ladybugs.
Hand-pick larger beetles. Use neem oil or insecticidal soap for heavy infestations. Rarely serious threat.

Uses

🍳

Nectar and Honey Production

Culinary

Grevillea flowers are rich in nectar and attract native bees and other pollinators, supporting local honey production and pollinator populations. The flowers can be used to make specialty honey. [source]

🏠

Cut Flowers and Floral Arrangements

Household

The striking spider-like flower clusters are excellent for fresh or dried floral arrangements, adding unique texture and color to indoor displays. Flowers last 1-2 weeks in water. [source]

🦋

Bird and Pollinator Attraction

Wildlife

Grevillea flowers are highly attractive to honeyeaters, lorikeets, and other native birds, as well as bees, butterflies, and other pollinators. Planting Grevillea supports local wildlife and biodiversity. [source]

🏠

Drought-Resistant Landscape Design

Household

Grevillea's low water needs and year-round interest make it ideal for xeriscape gardens, water-wise landscapes, and low-maintenance ornamental plantings in warm climates. [source]

💊

Traditional Indigenous Uses

Medicinal

Some Grevillea species have been used in traditional Aboriginal medicine for various purposes, though scientific evidence is limited. Always consult experts before medicinal use. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Grevillea is primarily grown for ornamental flowers rather than harvest. Cut flowers for arrangements when flowers are fully open but before they fade. Long-lasting in vases (7-10 days). Can harvest seed pods in late summer once they turn brown and dry; extract seeds for propagation. Collect flowers in early morning for longest vase life.

Fun Facts

🌱 Grevillea is native to Australia and some nearby regions, with over 360 species ranging from ground covers to tall trees. The genus name honors Charles Francis Greville, an 18th-century patron of botany.
🌱 The unique flower structure, featuring long curved styles and prominent stamens, is specifically adapted to pollination by Australian native birds like honeyeaters and lorikeets, which have evolved bills perfectly shaped to access the nectar.
🌱 Many Grevillea species have unusual 'proteoid' roots that lack root hairs and instead have dense clusters of rootlets, allowing them to thrive in nutrient-poor Australian soils where few other plants can grow.

Want personalized planting timelines?

Get started free