Arbutus unedo

Groupy

commonly named Groupy is a cultivar group of Arbutus unedo.

No photo available

Taxonomy and growth

Family
Ericaceae
Genus
Arbutus
Cultivar Group Of
Arbutus unedo
Group Name
Cultivar Group
Is a variety
No
Habit
tree, shrub
Life cycle
perennial
Foliage
evergreen
Woodiness
woody
Growth rate
slow
Height
15 m
Spread
10 m
Fertility
self fertile
Flower colours
white

Uses

Edible uses

Plant part
Fruit
Product or use
Fresh

Round red fruits 1-2cm in diameter are produced in abundance in Autumn. It is often quoted that the name "unedo" comes from the Latin meaning "I eat one"[3]:430[9]:43[6] however this is attributed by some to a lack of flavour[2][3]:430 and by others to the fruits potential to become quickly alcoholic after it has ripened, fermenting while still on the tree. Opinions on the fruits value as an edible crop vary. The fruit is variously described as subtle but sweet and with a tropical texture[9]:43 or conversely as bland and disappointing[3]:430[2].

Plant part
Fruit
Product or use
Jam

A jam or jelly can be made from the fresh red fruits. Care must be taken to pick the berries before they begin to ferment. For jelly, use a jellycloth to remove all seeds, or for a jam find a sieve or gauze with a mesh fine enough to remove the gritty seeds while allowing the majority of the pulp to pass through. The jam may ferment quickly once opened, so avoid large jars.

Plant part
Fruit
Product or use
Alcohol

In Portugal a distilled sprit (a brandy) is made from the fruit of Arbutus unedo, called aguardente de medronhos (sometimes, medronheiro). Fruit is harvested between September and November and placed in open-topped barrels (vasilhas) and water added to start the fermentation. To prevent a second fermentation (i.e., vinegar) a layer of mud (adobe) is put over the top to exclude oxygen. After 3-4 months the mass is transferred to a copper still, boiled and evaporated alcohol condensed and collected. "Better qualities of medronho under go multiple distillations". Usually, at least in the province of Algarve, the medronho is sold to licensed bottling companies who mix it with alcohol and "various essences".[8]

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

Plant part
Leaves
Product or use
Astringent

The bark & leaves have been used historically for colds and stomach problems[4]. The leaves, bark and root are astringent and diuretic[10].

Plant part
Seeds
Product or use
Vasodialator

Material uses

Plant part
Wood
Product or use
Fuel
Plant part
Wood
Product or use
Firewood

Arbutus wood makes a good firewood, burning hot and long[4]. The bark can be used for tanning[7]:117.

Plant part
Wood
Product or use
Furniture making
Plant part
Wood
Product or use
Turning

The timber of Arbutus unedo is a fine-grained pink hardwood. It's often gnarled and twisted trunks limits it's use as a timber for construction[4], but it's close grain and unique pink colour may make it appropriate for fine woodworking[5].

Ecology and functions

Ecosystem niche
Canopy, Shrub

Forage

Forage
Bees
Forage
Birds

Environment

Range
Mediterranean
Light
full sun
Shade tolerance
partial shade
Water
low
Hardiness
Zone 7+
Soil textures
sandy, loamy
Soil pH
very acid, acid, neutral, alkaline
Drainage
well drained, moist
Tolerances
high wind, maritime exposure, air pollution, drought
Wind
Yes
Maritime
Yes
Pollution
Yes
Tolerates Nutritionally Poor Soil
No
Drought
tolerant
Heat Zone
9

Propagation

seed

cutting

Seed Requires Scarification
No
Seed Requires Smokification
No
Seed Requires Stratification
No

Cultivation

As a member of the Ericaceae family, Arbutus unedo thrives in acidic or neutral soils[3]:430 but, unique to its family, has been reported to tolerate alkalinity[10].

Crops

Fruit

The fruit ripens in late autumn to water, producing an often abundant amount of fleshy red fruits 1-2cm in diameter. When red, often with an orange tint, soft, and easily removable from the tree, they are ripe. They can be hand picked but the even distribution of the fruit throughout the dense canopy can make this challenging. The fruit is very easily removed from the tree, however, and so can be harvested by laying out sheets on the ground surrounding it and shaking the branches.[7]:117 The fruits are very soft and not storable. They will quickly ferment, and indeed some may have already fermented on the tree, so consume or process quickly.

Requires processing
Yes
Processing
While edible fresh, most reports echo that are are not overly pleasant to eat in quantity owing to a gritty texture and variable flavour from one fruit to another: some sweet and pleasant, others bland. In Spain and Portugal they are often distilled into a liquor called Madronho and they can also make a pleasant tasting jam or jelly. In the latter case, it is advisable to strain the pulp of the fruit to remove the copious gritty seeds.
Storable
No

Problems, pests and diseases

  • {{Plant has problem |type=pest |name=slug |picture=Gundestrup.jpeg |identification=NIbbled bits of leaves are a dead giveaway. |solution=BOWLS of beer! }}

slug

Identification
NIbbled bits of leaves are a dead giveaway.
Picture
Gundestrup.jpeg
Solution
BOWLS of beer!
Type
pest

References

  1. Arbutus unedo ABC Gardening Australia 2012/01/07 http://www.abc.net.au/gardening/stories/s1089111.htm

  2. archive:abc.net.au-3

    Unresolved citation

  3. archive:collins-0

    Unresolved citation

  4. archive:davesgarden-5

    Unresolved citation

  5. archive:euxton-7

    Unresolved citation

  6. archive:herbariovirtual-2

    Unresolved citation

  7. archive:martincrawford-6

    Unresolved citation

  8. archive:oregonstate-4

    Unresolved citation

  9. archive:pfaf-1

    Unresolved citation

  10. archive:pfaf.org-8

    Unresolved citation

  11. Johnson, O; More, D Collins Tree Guide Collins ISBN 978-0-00-720771-8

  12. Arbutus unedo Dave's Garden 2012/01/07 http://davesgarden.com/guides/articles/view/2647/

  13. Strawberry Tree Euxton.com 2012/01/07 http://www.euxton.com/strawber.htm

  14. Arbutus unedo Herbario Virtual 2012/01/07 http://herbarivirtual.uib.es/cas-uib/especie/4617.html

  15. Crawford, M Creating a Forest Garden Green Books

  16. Arbutus Unedo Oregon State 2012/01/07 http://oregonstate.edu/dept/ldplants/arun.htm

  17. Fern, K Plants For A Future

  18. Arbutus unedo PFAF.org 2012/01/07 http://www.pfaf.org/user/plant.aspx?latinname=Arbutus+unedo

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