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Eucalyptus glaucescens ‘Guthega’ – Tingiringi Gum

£36.00£370.00

Handsome and versatile – Eucalyptus glaucescens ‘Guthega’ is exceptionally hardy – its provenance is the extremely cold ski resort in the Australian ‘Alps’.

Why we like this species:

  • This tree has everything you could want in beautiful leaves, ornamental bark and good habit
  • An impressive, fast growing, specimen tree with a resilient nature
  • Great when pruned to a bushy shrub or trained as a small tree with clear trunk (prune March and May)
  • Excellent choice for lumber, biomass, firewood logs, and cut foliage
  • Long-lived in very large planters

Sizes Quoted are the approximate height band of the tree above compost level, ie. the height of the tree once planted into the ground. Please note: Eucalyptus are living plants and can grow almost all year round, occasionally we may supply you with a plant that is slightly taller than your order. If this might cause you problems, please include a note with your order.

Click the dropdown below to view our different sizes & prices.

REF: EUCTIN-1
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Description

Eucalyptus glaucescens ‘Guthega’ – Tingiringi Gum

Question: What’s the difference between the three E. glaucescens that we grow, because they have different endings to their name ‘Tinderry’ versus ‘Guthega’ versus ‘Franklin’?

Answer: In a nutshell – the Provenance – where the seed comes from in south eastern Australia – the location of the ‘mother tree’. This is significant in the world of Eucalyptus. Although genetically they are all Eucalyptus glaucescens, they each have different ‘personality traits’…I can feel the botanists lining up to shoot me for being casual with terminology, but I’m trying to make it easy to explain.  If you skip to the tab called  ‘Nursery Notes and Trivia’ – I have explained the differences at the bottom.

Biometrics

Shoots ‘n Leaves: Young shoots – silvery blue often with pink bits

Juvenile foliage: rounded young leaves are silvery-white in the spring and are densely packed around the young stems, transitioning to oval, intermediate foliage

Adult foliage: typical lanceolate shape, in glossy green to a jade blue-green; often shimmers silver in the breeze.

Bark: Young silvery green bark gives way to stunningly beautiful peeling chalk-white bark on the upper part of the tree; shredding in ribbons, revealing a smooth under layer in a rainbow of colours of coffee, pewter, orange, green, custard and salmon pink.  Mature bark on the lower part of the tree is often fibrous and coffee coloured.

Flowers: Cream coloured flowers, in groups of 3 – deliciously sweetly fragrant. The  E. glaucescens ‘Guthega’ growing in our field, flowers reliably late summer into September

Leaf Aroma: very strong, warm fruity aroma, high in eucalyptol.

Rate of Growth: Fast 1.5-2.0 metres per year

Height in maturity, if left unpruned:  Tall, but can be controlled with pruning.

We have a customer in Brighton who keeps her E. glaucescens as a 2.4m tall lollipop by annual pruning in Spring.

If left to grow unpruned, this Euc can achieve a great height of 12 to 20 metres in the medium term either as a single trunk or multi-trunk, depending on the soil type and degree of exposure.  Long term into maturity and under optimal growing conditions, E. glaucescens ‘Guthega’ could reach 40-50m.   Given plenty of access to moisture during the summer, it can produce a dense bushy crown. Deprived of moisture during the summer months and it will develop a very open, minimalist crown.

Easy to keep smaller by regular pruning – March 18th and end of May.

If pruned, it can be trained to form a bushy screening tree, a lollipop standard or a multi-stemmed bush like a species rose or coppiced Hazel tree.  Responds well to coppicing and pollarding, when done at the right time of year.  Unless you are growing for cut foliage, please refrain from voluntarily electing to prune your Eucalyptus from August through to February; it can kill it.

To receive monthly pruning and aftercare advice, sign up to our Gumnut Club – its free and you can unsubscribe at any time.  To subscribe – just call or ping us an email to [email protected]

Hardiness: Guthega is a very hardy provenance, a ski resort high in the Australian alps. Eucalyptus glaucescens ‘Guthega’ has an excellent hardiness rating; root-system should be happy down to around -14 to -16°C, once mature.

Hardiness in Eucalyptus is governed by

  • provenance of seed (all our seed is sourced from frosty or cold locations)
  • how it is grown (i.e. high nitrogen levels reduces cold tolerance). Eucalypts need to be grown without stress – see our blog post on the subject.
  • the age of the tree – the older your tree, the hardier it will be. Younger Eucs are more susceptible to frost damage.
  • how long it has been planted in the ground. The deeper you can encourage the rooting by digging a deep planting pit at the time of installation, the quicker your tree will establish and you will increase its ability to survive cold winters. See our planting notes for more details.

Additional information

Weight 5 kg
Dimensions 160 × 40 × 40 cm
Size

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Planting Position and Soil

Eucalyptus glaucescens ‘Guthega’ – Tingiringi Gum

Requirements:

  • Sun: Enjoys full sun and open sky above. Avoid shade cast by other tall trees and buildings.
  • Soil type: happy in normal to free draining garden soils that are acidic, neutral and even alkaline pH. Please note that growth will be slower in higher alkalinity. In a garden setting, and as a young tree, an annual supplement of Iron sequestrene in March will make it even happier and improve its depth of foliage colour. Also give Iron sequestrene to Japanese Maples, Hydrangea, Magnolia and similar calcifuge plants.
  • Soil moisture levels: Tolerates intermittently poorly drained soil; grows well on our horrible yellow swampy wet clay soil with a pH of 8.0, at Grafton Nursery.
  • Environment: Good in exposed locations – see ‘How to Use’ tab

Recommendations:

  • If planting a large number for firewood or cut foliage, subsoiling is advisable, especially if pastureland has previously been used by livestock.
  • For the best results, follow our planting and aftercare watering instructions, issued with every order; they can also be found under the Help and Advice tab on this website.
  • Improve poor soils with our planting kit, at the time of planting.
  • To encourage deep rooting and therefore good stability, prepare a deep planting pit as per our instructions.
  • Ensure there is no competition from weeds or grass around the base of the young tree as this will seriously cramp its style and slow down establishment. Our research has found that grass around the trunks of newly planted Eucalypts can completely stop them from growing and may lead to failure
  • 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, the latter of 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.

How to Use

Eucalyptus glaucescens ‘Guthega’- Tingiringi Gum

How to use in the landscape and/or garden – How to grow or train it to get the best out of it :

A handsome, fast growing, large and versatile Eucalyptus; good specimen tree for the landscape, as a multi-stemmed bush for large planters, cut foliage and excellent for biomass.  Of the Eucalyptus grown for biomass, E. glaucescens is the least palatable to wildlife such as deer and rabbits.

 Eucalyptus glaucescens ‘Guthega’ is an exceptionally hardy form of the species as its provenance is the extremely cold ski resort in the Australian ‘Alps’.  Guthega the tree is also of good form and vigour.

Fabulous Specimen Tree for the wider landscape, arboretum collection or avenue planting and for the smaller, medium and larger garden. E. glaucescens grows into a very handsome tree

Commercially: a good choice for open public spaces, parks, business parks, university campus

Growing a full-sized standard: planting the tree and running away is an option, but it won’t necessarily give you the best results.

We suggest you maintain a leading shoot and tip prune the lateral shoots to encourage bushiness.  Keep all the sides shoots as they are building up the strength of the main trunk.

  • To grow a large specimen, leave the tree to grow up naturally thereafter.
  • For a small tree, tip prune the leader when it reaches 1.2m, thereafter let the head develop. Then prune the tree every March 18th and end of May to keep your tree small and bushy.

For more, see our guidance notes for growing specimen Eucalyptus in our Help and Advice section.

For monthly emails on how and when to prune and care for your Eucalyptus, sign up to our Gumnut Club and we’ll send you the Bush Telegraph – it’s totally free and you can unsubscribe at any time. Email us at [email protected]

Growing shrub-on-a-stick clipped standard: this is an opportunity to grow a Eucalyptus in a confined space like a courtyard and also control its overall size. You can produce a small tree on a trunk with a height of anywhere between 2.4m (8ft) and 4m (12ft). Prune back growth every March 18th or thereabouts and tip prune the annual growth back by up to 90% at the end of May. Light tip pruning can be done again during June/July, but no later. Don’t prune from August through to February.

See our Pruning Guidance Notes here

Growing a multi-stemmed bush or tree.  E. glaucescens responds well to coppicing and readily produces a multi-stemmed specimen  Coppice only once the tree has attained a trunk of some 125 mm in diameter.

Q: Why would you want to do this?

A: To create:

  • 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.

REMEMBER: No grass, no weeds and a thick boring bark chip mulch, to a depth of 150 mm (6 inches) are essential to assist with good establishment. Our research trials have demonstrated that grass around the trunk of Eucalyptus prevent the trees from quickly establishing and can completely stop them from growing.

Pot Culture outdoors:  E. glaucescens  can be successfully grown as a multi-stemmed shrub in a container provided you are prepared to pot on at the recommended intervals and to supply it with sufficient water and food during the growing season.

Always keep pot-grown Eucalyptus in the air-pot container system for healthy and happy trees.😊  They do not thrive in smooth-walled containers 😒…the wall of death!

For information on how to successfully grow Eucs in pots, visit our Guidance Notes entitled ‘How to grow a Eucalyptus in a pot and keep it alive!’

Hedge-Screens: E. glaucescens is not on our selected species list for hedge-screens; although, there is no reason why a number of multi-stemmed bushes could not be grown in a line and pruned every March to keep them bushy. They will grow fast and tall.

Floral Art:  E. glaucescens produces excellent fragrant, cut foliage for Flower Farmers and floral art. The intermediate and adult foliage can be over-wintered and harvested late into the Spring, extending the season.

Firewood Production:  E. glaucescens ‘Guthega’ is great for growing biomass and firewood logs.

Do give us a call on our nursery mobile 07307 413 052 if you would like to discuss growing firewood with one of our consultants

 Rural/Agricultural:

  • 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. Good choice for silvopasture.
  • Green foliaged species, which looks for comfortable and not ‘foreign’ in a rural setting – reminiscent of Willow Trees

Ecology:

  • All Eucalyptus produce flowers with nectar and pollen, but this species has particularly prolific flowers making it a real draw for honey bees and other pollinators.
  • Habitat creation and Game Cover: this species lends itself to providing good trouble-free habitat creation for wildlife and game cover, when planted in groups.  Birds enjoy roosting in Eucalyptus trees and Pheasants like rootling around underneath them.
  • Chickens: The shredded foliage of glaucescens is excellent at keeping Chicken nest boxes and hen houses free of red mites, which detest the presence of Eucalyptol. I used to line our Chicken boxes with shredded leaves, strew the floor and pile up the spindly branches for the chickens to make nests. It was all great till the foxes moved into the next field 😒

 Environmental:

  • Growing on the Coast There is precedence of glaucescens growing very successfully within sight of the sea in Cornwall

To make this work in such a windy environment, we recommend that:

  1. you plant a smaller specimen (1 litre or 3 litre, around 1m-1.2m tall),
  2. encourage fast establishment in a deeply prepared planting pit (follow our planting advice), to encourage deep rooting to grow an upright, stable tree.
  3. Staking will be required.
  4. Newly planted trees will very likely require a wind break shelter for their first winter in the ground with you.
  5. Zero grass or weeds during the period of establishment is non-negotiable!

Shelter Belts and Windbreaks  E. glaucescens ‘Guthega’  can be grown to form a good evergreen windbreak when planted as a single species stand.  It can be mixed in with other plant species provided care is taken to mitigate competition from other plants, whilst the Eucalyptus is establishing as they don’t compete well when young. We recommend that you establish the Eucalyptus for a year prior to planting additional species or you install an automatic irrigation system to ensure the Euc is receiving sufficient water.

We recommend

  • you plant a smaller specimen (less than 1.8m tall in a 1, 3 or 5 litre air-pot)
  • encourage fast establishment in a deeply prepared planting pit (follow our planting advice), to encourage deep rooting to grow an upright, stable tree
  • Staking will be required
  • In exposed locations, newly planted trees will very likely require a wind break shelter for their first winter in the ground with you
  • Zero grass or weeds during the period of establishment is non-negotiable!

Drying up wet soils E. glaucescens ‘Guthega’  is very at home in moist soils, such as a draining clay, draining peaty/loamy soils and draining sandy loams. It must be remembered that Eucalyptus are not aquatic like Mangrove, but several species, such as E. gunnii, E. aggregata and E. rodwayi, tolerate flooding for up to 6 months of the year in their native lands.

E. glaucescens ‘Guthega’  is a great species to help you regain the use of intermittently boggy ground. Dry up wet ground that intermittently lightly floods, gain remedial treatment for winter boggy ground or which suffers from outflow from a Septic tank system or unwanted intermittent seasonal ‘ponding’.

At Grafton, we have a 12m tall E. glaucescens  which is 12 years old. It was planted in an area that used to pond every winter, but the ground is now dry all year round.

If you have un-usable winter-wet land, planting a group of swamp gums, such as E aggregata or E. rodwayi, will help towards draining an area of ground. The timber could possibly be harvested to yield a crop of firewood logs too, if coppiced every 6-8 years.

  • Please note: Timber harvested from areas suspected to be contaminated with sewage should never be burned, but could be used in rustic garden construction, bug hotel, bean poles, edging pathways & borders etc.

Sustainable Drainage Systems aka SUDS: Needs trialling, but planted singly or in groups, E. glaucescens ‘Guthega’  will most likely draw on drain water percolating into swales or similar. Coppice or pollard every few years if you need to control the overall height of the trees. Eucalyptus draw on ground water for twelve months of the year, unlike willows, which lie dormant for 5 months through the winter.

Eucalypts grown on continually wet ground The overall height of Eucalypts, grown on continually wet soils in inhabited areas, needs to be considered (as with any tree species of great height), especially in areas subject to strong gales.  Selecting your tree with a radial root-system is vital and therefore only use Air-Pot grown or air-root-pruned stock.  Eucalypts grown in smooth-walled pots are a ticking-time-bomb liability and we can speak from personal experience.  Encouraging deep rooting by following our planting recommendations is essential. In addition, it may be prudent to consider pollarding or coppicing after 8 years of growth, to control the height down to around 10m, to mitigate the risk of the trees being forced over in high winds. Once coppiced/pollarded, it is recommended to maintain overall height at 10m or less thereafter. This practice usually only needs carrying out once every 8 years or so.

Tolerant of cold and exposed growing environments inland E. glaucescens ‘Guthega’ will grow in open fields and pasture, once established.

We recommend

  • you plant a smaller specimen (less than 1.8m tall in a 3 or 5 litre air-pot)
  • encourage fast establishment in a deeply prepared planting pit (follow our planting advice), to encourage deep rooting to grow an upright, stable tree
  • Staking will be required
  • In exposed locations, newly planted trees will very likely require a wind break shelter made from horticultural fleece or sail cloth, for their first winter in the ground with you; this very much depends on the level of exposure
  • Zero grass or weeds during the period of establishment is non-negotiable!

Tolerant of poor stony soils once established E.glaucescens ‘Guthega’ does not require a rich soil and can survive in poor, stony soils.   Tolerant of arid environments, poor stony dry soils once established. It is essential that your Euc. is given our recommended quantity of water for its first 2 growing seasons in your grounds, during its establishment phase before you abandon it to its fate.

The tree needs to establish a good, deep root system before it can survive in dry, challenging conditions. No grass, no weeds and a thick bark chip mulch, to a depth of 150 mm (6 inches) are essential to assist with good establishment. Growth on impoverished soils will always be reduced. E. glaucescens will always grow better on a good quality soil.

Nursery Notes and Trivia

Eucalyptus glaucescens ‘Guthega’- Tingiringi Gum

2024 Stock

We have good stocks of a wide variety of pot sizes for Tingiringi gums at this time, including some excellent 5 litre and 9 litre specimens

Botanical Name:  Eucalyptus glaucescens ‘Tinderry’      MYRTACEÆ; Myrtle Family

Common Name: Tingiringi Gum                                              Status: Evergreen Tree

Origin: Australian Alps – Guthega is a ski village and the site for a hydro-electric dam located in the Kosciuszko National Park, on the upper reaches of the Snowy River, on the western face of Mount Blue Cow, Snowy Mountains of New South Wales, Australia.

Differences between the various seed provenance of our Eucalyptus glaucescens:

  • ‘Guthega’ – can achieve a great height with time, with the genetic potential to reach 40-50m. Exceptional form, habit and hardiness. Very fast growing. Premium choice for biomass and firewood-log production
  • ‘Tinderry’ – altogether a much smaller tree than ‘Guthega’ or ‘Franklin’. Slightly slower growing. Nice shaped tree with the feature that its foliage is more silvery blue than the other two.  Popular for cut foliage and for the smaller garden.
  • ‘Franklin’ – sits between ‘Guthega’ and ‘Tinderry’ in terms of rate of growth and overall height.  Tree is of excellent form and habit.  Foliage is a good strong blue in formative years. It is a superb choice for biomass/firewood logs/lumber. Exhibits good level of hardiness, coming from Mt Franklin in Central Victoria, Australia.

Lignotuber:  it has one, which is a good thing!  E. glaucescens 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. glaucescens will respond extremely well to both coppicing and pollarding practices, once established.

Meaning of the name:

From the Latin glaucescens referring to the white wax that coats the branchlets, flower buds and fruits.

Tingiringi: my own personal theory is that Tingiringi Gum is a name given to the tree or the geographical region by immigrant Irish folk, but I could be wrong!

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