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Fraxinus quadrangulata - Michx.

Common Name Blue Ash
Family Oleaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Dry or moist rich woods[43], especially on limestone hills[82].
Range Central N. America - Ontario to Alabama and Kansas.
Edibility Rating    (0 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Full sun
Fraxinus quadrangulata Blue Ash


http://www.fs.fed.us/
Fraxinus quadrangulata Blue Ash
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 727.

 

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Summary

Bloom Color: Green. Main Bloom Time: Early spring, Late spring, Mid spring.Form: Oval, Rounded.


Physical Characteristics

 icon of manicon of lolypop
Fraxinus quadrangulata is a deciduous Tree growing to 20 m (65ft 7in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 4. It is in flower in April, and the seeds ripen in October. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.
It can tolerate atmospheric pollution.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Woodland Garden Canopy;

Edible Uses

None known

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

References   More on Medicinal Uses

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Other Uses

Dye  Wood

A blue dye is obtained from the inner bark[43, 46, 82]. The bark is ground into a powder and then steeped in water in order to obtain the dye[226]. Wood - hard, heavy, close-grained, durable, but not strong and is somewhat brittle. It weighs 47lb per cubic foot. The wood is largely used for flooring, the interior finishes of houses, construction etc[46, 61, 82, 171, 229, 235].

Special Uses

References   More on Other Uses

Cultivation details

Landscape Uses:Aggressive surface roots possible, Specimen, Street tree. Prefers a deep loamy soil, even if it is on the heavy side[1, 200]. Most members of this genus are gross feeders and require a rich soil[11, 200]. Plants succeed when growing in exposed positions[200] and also in alkaline soils[11]. They tolerate atmospheric pollution[200]. A fast-growing tree in the wild, where it lives 125 - 150 years[229]. Most species in this genus are dioecious but this species is said to be hermaphrodite[82, 229]. Special Features: North American native, Inconspicuous flowers or blooms.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plant Propagation

The seed is best harvested green - as soon as it is fully developed but before it has fully dried on the tree - and can then be sown immediately in a cold frame[80]. It usually germinates in the spring[80]. Stored seed requires a period of cold stratification and is best sown as soon as possible in a cold frame[200]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for their first winter. Plant them out into their permanent positions or a nursery bed in late spring or early summer of the following year. If you have sufficient seed then it is possible to sow it directly into an outdoor seedbed, preferably in the autumn. Grow the seedlings on in the seedbed for 2 years before transplanting either to their permanent positions or to nursery beds.

Other Names

If available other names are mentioned here

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Fraxinus americanaWhite AshTree25.0 4-9 FLMHSNDM124
Fraxinus angustifoliaNarrow-Leaved AshTree25.0 5-9  LMHNDM10 
Fraxinus bungeanaXiao Ye QinShrub5.0 4-8  LMHNDM022
Fraxinus chinensis rhynchophyllaHua Qu LiuTree25.0 5-9  LMHNM022
Fraxinus excelsiorAsh, European ash, Common AshTree30.0 5-8 FLMHNMWe223
Fraxinus floribundaHimalayan AshTree40.0 7-10  LMHNM222
Fraxinus hookeri Tree0.0 -  LMHNM001
Fraxinus latifoliaOregon AshTree20.0 5-9  LMHNM013
Fraxinus longicuspis Tree8.0 5-9  LMHNM011
Fraxinus nigraBlack AshTree25.0 2-5 MLMHNMWe013
Fraxinus ornusManna Ash, Flowering ashTree9.0 5-6 SLMHNDM33 
Fraxinus pennsylvanicaRed Ash, Green ash, Water AshTree20.0 3-9 FLMHNM113
Fraxinus sieboldianaAshTree8.0 6-9 MLMHNM002
Fraxinus texensisTexas White AshTree12.0 5-9 FLMHSNDM002
Fraxinus velutinaArizona Ash, Velvet ash, Modesto Ash, Fantex AshTree12.0 7-10 FLMHNM003
Fraxinus xanthoxyloides Tree6.0 7-10  LMHNM002

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Expert comment

Author

Michx.

Botanical References

114382

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