Manna Ash (Fraxinus ornus)

Manna Ash

Fraxinus ornus

Clusters of creamy blooms scent the spring air like honeyed rain. Deciduous flowering tree; common names: Manna Ash, Flowering Ash.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; produces the most abundant blooms when grown in full sun, but tolerates moderate shade in hot climates
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Watering Water deeply when the top 10–15 cm of soil is dry; drought-tolerant once established, requiring minimal supplemental watering
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Temperature Hardy to -15°C; tolerates summer temperatures up to 35°C with adequate soil moisture
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Characteristics

  • Leaf: Opposite, pinnately compound leaves with 5–9 oval, glossy green leaflets that turn pale yellow in autumn
  • Flower: Dense terminal panicles of small, creamy-white, highly fragrant star-shaped blooms
  • Stem/Bark: Smooth gray bark in youth, developing shallow fissures as the tree matures
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Care Guide

Watering

Water deeply every 7–10 days during prolonged dry spells

Fertilization

Apply balanced slow-release fertilizer once in early spring. Top-dress with composted organic matter in early spring to improve soil structure

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 for root drench to support flower production and overall health
Pruning
  • Prune dead, damaged, or crossing branches in late winter before new growth emerges
  • Thin crowded inner branches to improve airflow and light penetration
  • Remove suckers at the base to maintain a single, strong trunk form
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No known toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden tree; historical use of sap to produce manna, a traditional sweetener and medicinal substance