Arbequina olive

Olea europaea 'Arbequina'. Family Oleaceae. Tree.

Also called Arbequina olive tree.

Arbequina is a relatively compact evergreen olive grown for its silvery foliage and small, oil-rich fruit. It suits sunny, sheltered gardens with dry summers and mild winters, and grows well in a large container. It is self-fertile, although another compatible olive nearby can improve cropping; cool, wet summers often limit fruit ripening.

Hardiness

USDA zones 8b to 11b

UK hardiness: H4 (hardy, -10 to -5°C)

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Grows outdoors in the shaded zones. Select a zone to see what else grows there.

Arbequina olive
Olea europaea, the species.Photo: viridian
Arbequina olive
Olea europaea, the species.Photo: zebedeugalinha
Arbequina olive
Olea europaea, the species.Photo: zebedeugalinha

At a glance

Sun
Full sun; choose a warm, sheltered position for reliable fruit ripening.
Water
Water regularly while establishing and during fruit development; established trees tolerate drought. Let container compost begin to dry between thorough waterings.
Soil
Well-drained soil, including sandy, stony or chalky ground; tolerates moderately alkaline conditions. Avoid waterlogged clay and standing winter moisture.
Height
15-20 ft (4.5-6 m), usually smaller in containers
Spread
10-15 ft (3-4.5 m)
Flowers
Small creamy-white flowers in late spring to early summer.
Foliage
Evergreen. Narrow, leathery grey-green leaves with silvery undersides.
Growth
Slow to moderate
Care needed
Medium

The year at a glance

  • Deer resistant
  • Drought tolerant
  • Heat tolerant
  • Wildlife
  • Edible
JFMAMJJASOND
Flowers
Fruit
Plant

Northern hemisphere months. In Australia, shift them by six.

Difficulty
Hard
Toughness
Fairly tough

Will it suit your garden?

Pick your zone, country, light and whether you have pets.

Full sun is 6 or more hours of direct sun a day, part shade 3 to 6 hours, shade under 3.

How it grows

  1. Planting day

    7 ft (2 m)

  2. After 1 year

    7 ft (2.1 m)

  3. After 2 years

    7 ft (2.3 m)

  4. After 3 years

    8 ft (2.4 m)

  5. After 5 years

    9 ft (2.6 m)

About 26 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Good to know

Cats and dogs
Safe
Invasive in
the US and Australia
Growth rate
Slow

Care

Jobs through the year

WaterApr–May, Sep–Oct, every 14 days
For established trees in suitable ground, water during dry spells; check pots much more often.
WaterJun–Aug, every 7 days
Water in-ground trees during drought and fruit swelling; young trees and pots need more.
WaterJan–Mar, Nov–Dec, every 21 days
Check sheltered pots and water lightly only when compost has begun to dry.
FeedApr–May
Feed container trees with balanced fertilizer at the label rate; avoid excess nitrogen.
MulchMay
Mulch the root area lightly, keeping material clear of the trunk.
PruneMay–Jun
After hard-frost risk, remove dead, crossing and basal shoots, retaining last year's growth.
ProtectJan–Mar, Oct–Dec
In zones 6–7, keep in a movable pot and overwinter in bright, cool, frost-free shelter.
ProtectJun–Aug
Inspect stems and leaf undersides for scale and treat persistent infestations appropriately.
HarvestSep–Dec
Pick full-sized green or darkening olives if they ripen; properly cure before eating.
  • Plant after severe frost risk has passed, keeping the root flare at soil level.
  • Water deeply through the first two growing seasons; avoid frequent light sprinkling.
  • Use a container with generous drainage holes and a free-draining, loam-based potting mix.
  • Feed container trees with a balanced fertiliser in spring; avoid heavy nitrogen feeding, which encourages leafy growth rather than fruit.
  • Keep mulch away from the trunk and remove weeds around young trees.
  • Protect young trees from hard freezes; move pots into a bright, cool, frost-free place where winters are severe.

Pruning. Prune lightly in late spring, after the risk of hard frost, removing dead wood, basal shoots and crossing branches. Thin crowded growth rather than shearing the whole crown, because olives flower and fruit on the previous season's shoots.

Harvest

Expect a first worthwhile crop about 3-5 years after planting a young nursery tree, depending on climate and care. Hand-pick olives from autumn into early winter, either green at full size for curing or as they turn purple-black for riper fruit and oil. Fresh olives are intensely bitter and must be properly cured before eating; oil extraction requires suitable equipment.

Through the year

Late winter
Check frost protection and container drainage; keep sheltered trees lightly watered rather than completely dry.
Spring
Plant once severe frosts are over and begin feeding container-grown trees.
Late spring
Prune lightly after frost risk has passed, preserving plenty of last year's growth.
Summer
Water during prolonged dry spells, especially in pots and while fruit is swelling; inspect for scale insects.
Autumn
Pick full-sized green olives for curing, or leave fruit to darken for a later harvest.
Late autumn
Move containers under bright, cool shelter in cold climates and clear fallen fruit.

In the garden

  • Use as a small specimen tree in a sunny gravel garden with lavender and rosemary.
  • Grow in a large container as a focal point in a courtyard or on a sheltered terrace.
  • Train with a clear trunk above low, drought-tolerant planting to show its bark and silver foliage.
  • Include in a small edible garden or orchard where summers are warm enough to ripen olives.

Garden styles it suits: Mediterranean, Modern Mediterranean, Modern courtyard, Dry gravel garden, Edible landscape and Tuscan villa.

Plant it with: Lavender, Rosemary, Thyme, Santolina, Rockrose and Society garlic.

Wildlife: Birds may eat ripe olives and spread the seeds. The evergreen crown provides shelter; flowers are mainly wind-pollinated rather than a major nectar source.

Problems to watch for

  • Root rot in wet soil: improve drainage before planting, avoid overwatering and never leave a pot standing in water.
  • Peacock spot: dark circular leaf spots and leaf fall are encouraged by damp conditions; remove fallen leaves, improve airflow and avoid wetting foliage.
  • Scale insects: inspect stems and leaf undersides, prune out badly affected shoots and use a locally approved horticultural oil according to its label.
  • Olive fruit fly where present: larvae spoil fruit; collect fallen and infested olives promptly and follow local monitoring and control advice.

Safety

Olive leaves and fruit are not known to be toxic to cats, dogs, horses or people. Raw olives are very bitter, pits are choking and intestinal-obstruction hazards, and salty cured olives are unsuitable treats for pets.

Where it spreads. Olea europaea spreads by bird-carried seed and is invasive in parts of California and southern Australia, particularly South Australia, Victoria and Western Australia. Arbequina is a fruiting cultivar, not a sterile alternative; check local advice before planting near bushland and collect unwanted fruit.

Easily confused with

  • Russian olive (Elaeagnus angustifolia)

    Usually deciduous, with alternate leaves that are silvery on both sides, sometimes thorny branches and pale, mealy fruit; true olive has opposite leaves with greener upper surfaces.

  • Sweet olive (Osmanthus fragrans)

    Has broader, glossy green leaves without silvery undersides and strongly fragrant flowers; it is not the tree grown for culinary olives.

The name

Olea is the Latin name for olive, europaea means European, and Arbequina takes its name from Arbeca in Catalonia, Spain.

Propagation. Propagate from semi-ripe cuttings in summer, usually with rooting hormone and a free-draining medium; rooting can be slow. Seedlings do not reliably retain Arbequina's characteristics.

Checked against open data

Accepted botanical name
Olea europaea
In the US and Canada
Introduced in Hawaii and the lower 48 states.
Native range
Afghanistan, Albania, Algeria, Angola, Baleares, Botswana, Burundi, Canary Is., Cape Provinces, China South-Central, Cyprus and Djibouti.
Measured
Soil pH 6.5 to 7. Average height 450 cm.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.

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