Eucalyptus dalrympleana - mountain gum
Also known as:
Mountain White Gum, Mountain Gum, Broad-leaved Kindling-bark, Broad-leaved Ribbon Gum, Kindlingbark, Seven-flowered Mountain Gum
Why we like this species:
- A fast growing evergreen tree, giving you a quick result
- Grow your own fragrant firewood for your firepit. We use ribbons of bark to light our log burner.
- Gorgeous, ornamental bark giving all year round garden interest
Tall, handsome fast growing tree with good bark detail, excellent for firewood production.
Call us on 0751 526 1511 for assistance in choosing your Eucalyptus.
- Eucalyptus dalrympleana
- MYRTACEÆ; Myrtle Family
- Common Name: Mountain White Gum, Mountain Gum, Broad-leaved Kindling-bark, Broad-leaved Ribbon Gum, Kindlingbark, Seven-flowered Mountain Gum
- Status: Evergreen Tree
- Origin: The species occurs in South-east Australia, Queensland, New South Wales, Victoria and Tasmania. Introduced to Britain in 1942.
Nursery Notes 2020: Spring
Young 3 litre stock ready now
Mature 5 litre stock with very sturdy stems is ready now - these are 3rd year old stock and the heads have been pruned to slow them down so they concentrate on roots and trunks
5 litre stock now 3 years old - very sturdy at 6-8ft tall
12 litre standards with 6-8cm girth ready now
20 litre heavy duty stock 8-10/10-12 cm girth ready now
Description, habit, uses and attributes:
A very attractive, tall and stately specimen tree; excellent choice for parkland, arboretum or field tree.
It received an Award of Garden Merit in England in 2002. The oil of this variety is anti-viral.
On hot breezy summer days, when the leaves of E. dalrympleana are transpiring a great deal of water, put your ear to the trunk and listen carefully - the sap conducting vessels (xylem) lie just beneath the thin bark and you can hear the water gushing madly up through the pipe-work in the tree trunk !
Lignotuber: it has one, which is a good thing! E. dalrympleana will regenerate off the lignotuber if cut down by man, beast or nature. It also produces many shoots from epicormic buds lying dormant beneath the bark higher up the tree; so E. dalrympleana will respond extremely well to both coppicing and pollarding practices.
How to grow or train it to get the best out of it:
Good Specimen Tree for the wider landscape, arboretum or avenue planting and for the larger garden: E. dalrympleana grows into a magnificent specimen
Growing a full sized standard: planting the tree and running away is an option, but it won’t necessarily give you the best results. For information on how to do it properly see our ‘Help’ pages here
Growing a multi-stemmed bush or tree. E. dalrympleana responds well to coppicing and readily produces a multi-stemmed and twin-stemmed specimen
Why would you want to do this?
- a tree with more body or ‘mass’ of branches and foliage for screening purposes. Once grown back up to its full potential, it will now have several main trunks
- an attractive multi-stemmed architectural tree, especially if it has exceptional bark
- to control height, whereby your Euc can be usefully maintained anywhere between 2.4m (8ft) and 7m (20ft), but genetically it will want to grow taller if ignored.
To produce your own multistem from a young tree or maxi tree see our growing notes.
Firewood Production: E. dalrympleana is an excellent choice for Biomass or Firewood. Tolerant of a wide range of growing conditions, it is certainly one to trial on your land. For information on how to grow firewood, see our ‘Help’ pages here
- Good shade tree for livestock to stand under. Eucalyptus provide a cool environment for horses, cattle, llamas, sheep to shelter from the sun on hot days, as the mass evaporation of water through the leaves creates a cool shady canopy beneath. Also, I have been told that the eucalyptol in the leaves deters flies
- Bees. E. dalrympleana produces useful flowers providing foraging for honey-bees and other pollinating insects
- Drying up wet soils. Whilst not a swamp gum, E. dalrympleana grows exceptionally well for us on our intermittently swampy yellow clay and our trees have usefully dried up the soil in their corner of the field. However, we don’t have experience of it being grown in extremely wet conditions.
Shoots ‘n Leaves: Young stems are an orange scarlet colour.
Juvenile foliage - emerging leaves are often pinky bronze shades.
Adult foliage is elegant, willowy, sickle-shaped and blue-green in colour, often with reddish edges. Foliage is elegantly displayed in heavy tresses along drooping branches
The juvenile leaves measure from 3.5 mm to 12 mm long x 3.0 mm to 6.5 mm wide.
Adult leaves measure from 8.5 mm to 27.5 mm long x 10-50 mm wide.
Bark: the beautifully marked smooth bark is a striking feature of this variety. It has shades of cream, salmon pink, coffee and silvery grey patchwork; which flakes off revealing new smooth, pure white bark beneath.
Flowers: White flowers displayed in umbels of three and are a good source of nectar for honey bees.
Leaf Aroma: Strong, fresh Eucalyptus aroma reminiscent of sweet Cinnamon and a hint of ‘Olbas Oil’
Rate of Growth: fast, 1.5-2.0 m (5-6 ft) per year
Height in maturity, if left unpruned: Long term this species will form a very impressive large tree at around 40m. The best specimens in the Hillier arboretum are 120ft tall, with chalk-white bark. The Royal Horticultural Society recommend that you grow it to a height that suits your environment and then coppice it; growing it back up again either as a single trunk or multi-stemmed tree.
Hardiness: tolerating down to around -12°C mark, once mature.
Hardy, but as it is so fast growing, some of the shoot tips may remain soft going into winter. If cut down in exceptionally cold winters, the tree re-grows from its lignotuber; with multiple shoots appearing around the base of the tree trunk in late summer, creating a mallee (multi-stemmed thicket - like Hazel copses). It can be thinned to form just one main trunk.
Hardiness in Eucalyptus is governed by provenance of seed, how it is grown (i.e. high nitrogen levels reduces cold tolerance), age of the tree - the older your tree, the hardier it will be. Younger Eucs are more susceptible to frost damage. Hardiness refers to the lignotuber and not the foliage. Our plantation trees defoliated in the icy winds of the Beast from the East when we had -8 celsius, but the fully leafed out a few weeks later.
Planting position and soil preference
Any good garden soil is fine in a sunny, open position.
E. dalrympleana is very tolerant of limey soils, but the soil quality must be good for the tree to succeed. Trees grown on poor, stony soils will be thin and spindly
To encourage deep rooting and therefore good stability, prepare a deep planting pit as per our instructions. If planting a large number for firewood or cut foliage, subsoiling may be a good practice to follow, especially if pastureland has previously been used by livestock.
For the best results, follow our planting and aftercare watering instructions; issued with every order.
Make life easier for you and your new tree: Plant with the mycorrhizal fungi product Rootgrow. Eucalyptus in particular have a special, lifelong relationship with their root fungi, which actively transport food and water directly into the tree roots, helping your new Euc establish faster and more efficiently, particularly in challenging types of soil.
Interesting botanical notes: E. dalrympleana is in the Eucalyptus subgenus Symphomyrtus section Maidenaria, a large group of species basically restricted to the south-eastern region of Australia. Within this section, E. dalyrmpleana belongs in the series Vimnales subseries Circulares.
It is closely related to the smaller very ornamental species E. rubida
Meaning of the name:
Eucalyptus dalrympleana was named in 1920, after Richard Dalrymple-Hay (1861-1943), the first Commissioner of Forests in New South Wales.