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Summary
Bloom Color: Purple, Red.
Main Bloom Time: Early fall, Late fall, Mid fall. Form: Pyramidal, Rounded.
Physical Characteristics
Alnus maritima is a deciduous Tree growing to 9 m (29ft 6in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from September to October, and the seeds ripen in May. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Wind.
It can fix Nitrogen.
Suitable for: medium (loamy) and heavy (clay) soils and can grow in heavy clay and nutritionally poor soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in saline soils.
It cannot grow in the shade. It prefers moist or wet soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Plant Habitats
Woodland Garden Canopy; Secondary;
Edible Uses
References More on Edible Uses
Medicinal Uses
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None known
References More on Medicinal Uses
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Other Uses
Biomass Wood
This species has the potential to be used as a biomass crop[269]. Wood - light, soft, close-grained. Light brown in colour with thick, hardly distinguishable heartwood[82].
Special Uses
Nitrogen Fixer
References More on Other Uses
Cultivation details
Landscape Uses:Erosion control, Massing. Prefers a heavy soil and a damp situation, but it succeeds in ordinary garden soil[11]. Grows well in heavy clay soils[11]. Tolerates very infertile sites[200]. Trees are tolerant of frost, poor soil, and some salinity and water-logging[269]. Seaside alder is reported to tolerate an annual precipitation in the range of 95 to 400cm, an average annual temperature of 13. 5 to 18°C, and a pH in the range of 6. 1 to 8. 1[269]. This species has a symbiotic relationship with certain soil micro-organisms, these form nodules on the roots of the plants and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200]. Special Features: North American native, Inconspicuous flowers or blooms. In garden design, as well as the above-ground architecture of a plant, root structure considerations help in choosing plants that work together for their optimal soil requirements including nutrients and water. The root pattern is branching: a heart root, dividing from the crown into several primary roots going down and out [2-1].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
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Plant Propagation
Seed -
Other Names
If available other names are mentioned here
Native Range
NORTHERN AMERICA: United States (Oklahoma, Delaware (southeast), Georgia (Bartow Co.), Maryland (east))
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 Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Alnus acuminata | Alder | Tree | 25.0 |
10-12
| F | LMH | SN | M | 0 | 2 | 3 |
| Alnus cordata | Italian Alder | Tree | 25.0 |
5-9
| F | MH | SN | DMWe | 0 | 0 | 4 |
| Alnus glutinosa | Alder, European alder , Common Alder, Black Alder | Tree | 25.0 |
3-7
| F | MH | SN | MWe | 0 | 3 | 5 |
| Alnus hirsuta | | Tree | 18.0 |
3-7
| | MH | SN | MWe | 0 | 0 | 2 |
| Alnus incana | Grey Alder, Speckled alder, Thinleaf alder, White Alder | Tree | 18.0 |
2-6
| F | MH | SN | DMWe | 0 | 0 | 3 |
| Alnus japonica | Japanese Alder | Tree | 22.0 |
4-8
| F | MH | SN | DMWe | 0 | 1 | 2 |
| Alnus jorullensis | Mexican alder, Evergreen Alder | Tree | 25.0 |
7-12
| F | LMH | SN | MWe | 0 | 0 | 3 |
| Alnus maximowiczii | | Tree | 9.0 |
4-8
| | MH | SN | MWe | 0 | 0 | 2 |
| Alnus nepalensis | Nepalese Alder | Tree | 22.0 |
8-11
| F | MH | SN | MWe | 0 | 1 | 3 |
| Alnus nitida | West Himalayan Alder | Tree | 30.0 |
7-10
| | MH | SN | DMWe | 0 | 1 | 3 |
| Alnus rhombifolia | White Alder | Tree | 12.0 |
8-11
| F | MH | SN | MWe | 1 | 2 | 2 |
| Alnus rubra | Red Alder, Oregon Alder | Tree | 20.0 |
6-8
| F | MH | SN | MWe | 2 | 2 | 4 |
| Alnus rugosa | Speckled Alder | Tree | 22.0 |
2-6
| F | MH | SN | MWe | 0 | 2 | 3 |
| Alnus serrulata | Smooth Alder, Hazel alder | Shrub | 4.5 |
3-9
| | MH | N | MWe | 0 | 2 | 2 |
| Alnus sinuata | Sitka Alder | Shrub | 4.0 |
2-9
| F | MH | SN | MWe | 1 | 1 | 3 |
| Alnus tenuifolia | Mountain Alder, Thinleaf alder | Tree | 9.0 |
5-7
| F | MH | SN | MWe | 1 | 2 | 3 |
| Alnus viridis crispa | American Green Alder | Shrub | 3.0 |
4-8
| | MH | SN | MWe | 1 | 2 | 3 |
|
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
(Marsh.)Muhlenb.
Botanical References
82200270
Links / References
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Readers comment
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