Description
Olea europaea subsp. africana (commonly known as Wild Olive) is a small to medium-sized evergreen tree belonging to the Oleaceae family. It is native to Africa, the Arabian Peninsula, and some parts of the Indian subcontinent. This subspecies is closely related to the cultivated olive (Olea europaea subsp. europaea), but it is naturally occurring and not domesticated for large-scale fruit production.
The tree typically grows 2 to 12 meters tall, with a dense, rounded crown and a gnarled trunk that becomes twisted with age. The bark is grey and rough, often deeply fissured in older specimens. Leaves are simple, opposite, narrow, and leathery, with a glossy dark green upper surface and a paler, silvery underside, helping reduce water loss in dry climates.
In spring to early summer, the tree produces small, fragrant, creamy-white flowers in loose clusters. These are followed by small, ovoid fruits (drupes) that ripen from green to purple-black. Although the fruits are smaller and have less flesh than cultivated olives, they serve as an important food source for birds and wildlife.
Germination Guide
🌍 Eritrea to South Africa, also occurring in Mascarene Islands, Arabia, India to China, particularly in seasonally dry tropical biomes
Moderate
Olea europaea subsp. africana, commonly known as African wild olive, is a native African tree species found from Eritrea to South Africa in seasonally dry tropical biomes. Successful germination requires overcoming significant physiological dormancy through mechanical scarification (especially endocarp removal) and cold stratification. With proper pre-treatment, germination rates can reach up to 90%, though untreated seeds typically germinate at only 0-5%.
Germination
Germination time
Expect germination in
30 – 120 days
Temperature
Min 4°C
Ideal 18°C
Max 25°C
Substrate moisture
💧 Medium
Sowing depth
Lightly covered
Seed Pre-treatment
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💧
Soaking — 36 hours
Soak seeds in sanitized container with water for 24 to 48 hours to facilitate water absorption
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🔨
Mechanical scarification
Mechanical scarification by lightly sanding or nicking the seed coat is essential. Removing the endocarp (pit shell) by cracking with a hand vice or rolling a stone over seeds significantly improves germination rates from 0-5% to up to 92%
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❄️
Cold stratification — 45 days at 4°C
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📋
Additional notes
After soaking, place seeds in moist environment at 4°C in refrigerator for 30 to 60 days. Seeds can germinate during cold stratification period. Remove all outer fruit pulp before treatment. Seeds exhibit morphophysiological dormancy requiring both mechanical scarification and cold stratification to overcome dormancy
Substrate & Container
Recommended substrate
Pathogen-free germination substrate or well-draining seed mix with peat moss or vermiculite
Recommended container
Individual pots or seed trays with drainage
Growing Tips
1. Thoroughly remove all outer fruit pulp before treatment, as this significantly affects germination success. 2. Endocarp removal is particularly effective—crack the pit shell by hand vice or rolling a stone over seeds to enhance germination rates to 92%. 3. After stratification, move seeds to a warm location (18-25°C) with adequate humidity. 4. Seedlings should be gradually acclimated over 30 days before transplanting outdoors. 5. Species is extremely drought tolerant once established and prefers full sun and well-drained soil. 6. Keep soil consistently moist but not waterlogged during germination and early growth. 7. This species has a deep, spreading root system—plant away from buildings, patios, and swimming pools. 8. Seeds maintain orthodox storage behavior and viability for several years when stored hermetically at 3°C.
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