Proteaceae
Silk Oak: Fast Growing
Grevillea robusta
Requires plenty of sunlight and soil with excellent drainage. It is drought-tolerant once established but requires regular watering during its first few years.
Every 7 days
Bright indirect
10° - 35°C
40% - 70%
Categories
What is Silk Oak?
Silk Oak (Grevillea robusta) is a medium-care plant from the Proteaceae family. The Silk Oak is the largest species in the genus Grevillea, native to the east coast of Australia. It is a fast-growing tree, famous for its delicate fern-like foliage and spectacular golden-orange brush-like flowers. Although it can reach great heights in the wild, it is often grown in pots when yo...
Silk Oak grows up to 25.0m, with spread of 1000cm, watering every 7 days, 10°C â 35°C, 40â70% humidity. It is suitable for indoor environments and not safe for pets.
Without precautions, ingestion can cause irritation in pets. Keep out of reach of cats and dogs. Without adequate drainage, root rot can develop within 14 days.
How to Care for Silk Oak?
TLDR: Silk Oak needs Bright indirect, watering every 7 days, and temperatures between 10-35°C with 40-70% humidity.
How Often Should You Water Silk Oak?
Water deeply when the soil is dry to the touch, but never let the plant sit in standing water.
How Much Light Does Silk Oak Need?
For healthy growth, place the plant in a full sun location. If kept indoors, it should be near very sunny windows.
What Is the Best Soil for Silk Oak?
Prefers slightly acidic to neutral soils. Avoid calcareous or excessively alkaline soils.
What Pot Should You Use for Silk Oak?
Deep terracotta pots with drainage holes to accommodate the vigorous root system.
Care Schedule
Fertilize
Every 60 days
Misting
Every 15 days
Rotate
Every 14 days
Repot
Every 730 days
What Is Silk Oak and Where Does It Come From?
The Silk Oak is the largest species in the genus Grevillea, native to the east coast of Australia. It is a fast-growing tree, famous for its delicate fern-like foliage and spectacular golden-orange brush-like flowers. Although it can reach great heights in the wild, it is often grown in pots when young due to the beauty of its silver-backed leaves.
How to Propagate Silk Oak?
Sowing
- Avoid fertilizers with high phosphorus content, as the species is sensitive to this nutrient.
- 1 Seed Preparation
Use fresh, winged seeds collected after the fruits open naturally.
- 2 Planting
Sow in a light, sandy substrate, covering lightly with soil.
- 3 Germination
Keep the soil moist and in a warm location until seedlings emerge.
Materials needed:
Stem cuttings
- Using bottom heat can increase the chances of rooting success.
- 1 Cutting
Take semi-hardwood cuttings approximately 4-6 inches (10-15 cm) long.
- 2 Treatment
Remove the lower leaves and use rooting hormone at the base.
- 3 Planting
Insert into a perlite and peat moss mix, maintaining high humidity.
Materials needed:
How Big Does Silk Oak Grow?
TLDR: Silk Oak can reach up to 25.0m tall with Fast growth rate.
Max height
25.0m
Spread
10.0m
Growth rate
Fast
Foliage
Evergreen
Warning: Toxic Plant
This plant can be toxic if ingested. Keep out of reach of:
Plant Uses
Ornamental
Great for decoration
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
Meaning & Symbolism
Represents resilience, adaptability, and natural elegance.
Compare with similar plants
| Attribute | Difficulty | Light | Watering | Pet Safe |
|---|---|---|---|---|
| Flamingo Flower | Medium | Partial shade | 5d | â ïļ |
| Prayer Plant | Medium | Partial shade | 3d | â |
| Boston Fern | Medium | Partial shade | 3d | â |
| Weeping Fig | Medium | Partial shade | 10d | â ïļ |
