Arbutus unedo 'COMPACTA' hardy strawberry tree
size/type
medium-sized shrub,taller shrub
usual height
1,5-3m
usual width
1-2m
leaves
evergreen broadleaf
colour of leaves
flowers
less showy but noticeable
colour of flowers
blooming time
September-May
location
full to partial sun
soil type
acidic (peaty) to neutral
soil moisture requirements
evenly moist (dislikes drought)
USDA zone (lowest)
7 (down to -23°C)
winter protection
for zone 5+6
for zone 7
categorized
Strawberry tree is another of my favourite evergreen plant from the trial field of Mediterranean plants where we test originally tender plants in C.E. continental climate. We have noticed that in the changing climate many macchia plants are exceptionally suited for milder parts of our country. Sufficient hardiness is an important feature, however, current lack of water in the ground and less rain make drought-tolerant plants like this one a desirable species even here. Arbutus unedo is one of them and the species has not proved commonly hardy when the temperature dropped below -15 °C. However, there are varieties and selections which performed a miracle! Compacta is one of them.
Description of the plant:
Compacta is a strawberry tree selection found many years ago as a seedling of the species. It boasts a neat and well-behaved habit, dense branching, and improved hardiness. Its evergreen leaves are narrowly obovate, 5-7 cm long, finely serrated at margins, they emerge bronze red and remain soft green for a long time before they mature to deep green. Always very glossy and erect. Arbutus belongs to heather family (Ericaceae) which is easy to tell looking at its flowers. They are urn-shaped, red and white, composed in pendent racemes, and show up from autumn until late spring, and sporadically throughout summer, too. Meanwhile mature small, spherical, and edible fruit which is bright red when mature hence the tree name. It contains as much as 20% of sugar but the taste is rather dull so it is mostly used in preserves and liquors.
Strawberry tree is one of the key features of so-called macchia vegetation found in dry and hot, rocky slopes of South Europe. Its plants cope extremely well with long-lasting drought and are usually unattacked by wild animals. Compacta remains smaller and compact, yet you can enhance its branching in spring after all frosts. I saw beautiful specimen plants trained into small multistemmed trees which reveal the beautiful red-brown bark. Select 3-5 main branches as a strong framework, remove all laterals until the top and clip its canopy into a mushroom head every summer. Thus you can achieve a beautiful Mediterranean-style jewel.
Grow it in extremely well-drained, humus rich soil in full sun or only light shade. Slightly acidic soil enhances the depth of green colour in leaves but is not essential. Just avoid compacted or water-logged ground where the roots may rot. It will need even moisture after transplanting but once established stay away from watering. It is pest and disease free, and so far hardy to USDA zone 6 – short spells of -23°C. Choose older plants for growing in zone 6 and provide good mulch for winter.
Last update 13-09-2020
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