Alsophila australis
Australian tree fern
A tree fern with a terminal cluster of spreading fronds on a stem clothed with persistent frond bases that are covered with brown scales
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Size
Ultimate height
2.5–4 metresTime to ultimate height
20–50 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Brown | Green | ||
|---|---|---|---|---|
| Summer | Brown | Green | ||
| Autumn | Brown | Green | ||
| Winter | Brown | Green |
Position
- Partial shade
Aspect
South–facing or East–facing or West–facing
Exposure
Sheltered Hardiness
H2Botanical details
- Family
- Cyatheaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Name status
Correct
- Plant range
- Eastern Australia
How to grow
Cultivation
In areas prone to frost, grow in a container under glass with a minimum winter temperature of 10°C (50F). The plant may be placed outside during the summer in a sheltered and partially shaded spot. It requires a moist but well-drained humus-rich soil; in hot, dry summers water the stem as well as the soil, but avoid watering the crown in winter. Apply liquid fertiliser monthly during the growing season. Will grow without winter protection only in milder areas. See tree fern cultivation for further advice
Propagation
Propagate by sowing spores as soon as ripe
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Architectural
- Flower borders and beds
Pruning
Dead or damaged fronds may be removed as necessary
Pests
Generally pest-free outdoors
Diseases
Generally disease-free
Get involved
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