---
title: Mountain Ash
date: 2024-04-04T17:14:00+11:00
author: Private Forests Tasmania
canonical_url: "https://pft.tas.gov.au/tree-species/mountain-ash"
section: Tree Species
---
1. [Private Forests Tasmania](/)
2. Mountain Ash
 

#  Mountain Ash 

 

 

 

 

 

 ![Eucalyptus regnans](https://pft.tas.gov.au/volumes/images/Tree-Species/_800x800_crop_center-center_none/125985/Eucalyptus-regnans.webp) 

## Scientific Name

Eucalyptus regnans

## Family Name

MYRTACEAE

## Common Name

Mountain Ash

 

 

### General Information

 

  Height 100.0m (10000cm)   Flowers Often 2 umbels together in an axil, each with 7-16 flowers.   Fruit Woody capsule   Form Tree with a shaft-like trunk which, in mature tees, is buttressed at the base.   Municipalities Break O'Day; Brighton; Burnie; Central Coast; Central Highlands; Circular Head; Derwent Valley; Devonport; Dorset; Georgetown; Glamorgan-Spring Bay; Glenorchy; Hobart; Huon Valley; Kentish; Kingborough; Latrobe; Launceston; Meander Valley; Northern Midlands; Sorell; Southern Midlands; Tasman; Waratah-Wynyard; West Tamar   Communities Wet Eucalypt   Habitat Notes Found on well-drained sites with moderate ferility and high rainfall, usually in sheltered valleys in the south and central plateau but not on the west coast.   Site Tolerance Moist   Frost Tolerance Tender   Soil Tolerance Clay; Fertile; Loam; Well-drained   General Notes Fast growing. The tallest known flowering plant in the world. An important source of timber marketed as 'Tasmanian Oak'; also used extensively as a raw material for newsprint pulp. Also suitable for firewood. Will not coppice after damage by fire or after felling. Not suitable below powerlines.   

 

### Propagation Details

 Flowering Months JanFebMarAprMayJunJulAugSepOctNovDecSeed Collecting Months JanFebMarAprMayJunJulAugSepOctNovDecSowing Months JanFebMarAprMayJunJulAugSepOctNovDecCutting Months JanFebMarAprMayJunJulAugSepOctNovDec 

 

 

### Seed Information

 

  Seed Collection Capsules, wiith relatively thin walls and usuallly 3 small valves. collect capsules and store in paper bags until valves open to release seed.produces a heavy seed crop every 4 years   Seed Treatment Method Cold   Seed Storage Life 10 years at 4oC   Viable Seeds Per Gram 181   Seed Treatment Notes 6-8 weeks to pricking out. Will germinate best after stratification at 3-5oC for 4 weeks. Although not as sucessful as stratification, treatment of seed with gibberallic acid or a 15 per cent solution of potassium nitrate for 48 hours can overcome the need for cold storage.   Germination Time 2-4 weeks   Suitable For Direct Seeding Yes   

 

### Cuttings

 

  Propagation By Division No