Narrow-leaved ash
Fraxinus angustifolia
A fast, airy biomass and shade tree that loves moist ground and coppices vigorously — ideal along water. Check for ash dieback in your region before planting.
Narrow-leaved ash in a syntropic line
Narrow-leaved ash belongs in the High layer as a Secondary biomass species. Main production and shade trees for the line. Rough in-row spacing starts around 1.9 m in a syntropic row. Good line partners include Apple, Elder. As a Secondary species it carries mid-term yield and structure while climax trees slowly claim the canopy.
Tolerances and growing conditions
- Strata
- High
- Lifecycle
- Secondary
- Soil preference
- Loam, Clay
- Soil pH range
- 5.5 – 8
- Min. temperature
- -15°C
- Min. rainfall
- 600 mm/year
- Wind tolerance
- Medium
- Frost tolerance
- Medium
- Growth rate
- Fast
- Irrigation needed
- Medium
- Foliage
- Deciduous
- Waterlogging tolerance
- High
- Origin
- Mediterranean
- Native to Portugal
- Yes
How to manage it
Fast biomass and shade tree that coppices and pollards vigorously; ideal for moist zones and stream edges.
How to propagate
Sow seed in autumn after cold stratification; ash seed needs a winter chill to germinate.
Guidance, not a guarantee — success varies by species and skill.
What to watch out for
Needs reliable soil moisture to thrive and struggles in prolonged drought; check for ash dieback (Hymenoscyphus fraxineus) risk in your region before planting widely.
Frequently asked questions about Narrow-leaved ash
Is narrow-leaved ash frost-hardy?
Yes for winter cold in many climates — generally hardy to around -15°C when dormant, with medium frost tolerance in the catalog. Flowering crops can still lose a season to late frost, so site them carefully.
What soil does narrow-leaved ash need?
It does best on loam, clay ground, at pH about 5.5–8.
How much water does narrow-leaved ash need?
Plan for a rainfall floor around 600 mm/year, plus medium irrigation once established.
Can narrow-leaved ash handle wet or waterlogged soil?
Yes — narrow-leaved ash has high waterlogging tolerance and copes with winter-wet ground.
What should I watch out for with narrow-leaved ash?
Needs reliable soil moisture to thrive and struggles in prolonged drought; check for ash dieback (Hymenoscyphus fraxineus) risk in your region before planting widely.
Narrow-leaved ash in soil templates
- Narrow-leaved ash appears in the sandy soil starter lineBrowse sandy templates →
- Narrow-leaved ash appears in the loam soil starter lineBrowse loam templates →
- Narrow-leaved ash appears in the clay soil starter lineBrowse clay templates →
- Narrow-leaved ash appears in the chalky soil starter lineBrowse chalky templates →
Design your line to see how your land fits Narrow-leaved ash.
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