Tamarack, Eastern Larch, American Larch
Larix laricina

Description

Larix laricina, or tamarack, also known as eastern larch or American larch, is native to Ontario, and found across Canada and thrives in moist, well-drained soils with full sun, preferring cooler climates, which makes it ideal for northern regions. Commonly found in wetlands, it grows best with consistent moisture and in natural, less disturbed areas. Tamarack tolerates light shade but needs full sun to grow with quick growth rates. It can struggle in hot, humid conditions and urban environments. Its shallow root system makes it prone to wind throw, so it should be planted in sheltered locations. Tamarack is low-maintenance, fast-growing once established, and great for naturalizing areas, though it sheds a significant number of golden needles in the fall, adding to debris.
No items found.

Planting Site and Native Range

Planting Site
Naturalization, Parks, Highway, Residential

Management Notes

Management Notes
None of significance

Tree Characteristics

Growth Rate
Moderately (30cm- 60cm per year)
Width
8 - 11m
Height
12 - 24m
Soil Quantity
21 - 30 m
Leaves
Deciduous

Insects and Diseases

Insects and Diseases
One serious pest for this tree species is larch case-bearer, which is a small insect that causes the needles of the larch to brown. Other issues include, leaf cast, canker, needle rust, woolly larch aphid and Japanese beetle. Although this tree does have some pest issues, it is still recommended to be planted specimen tree.

Tree Tolerances

Soil Salt Tolerance
Unknown
Salt Spray Tolerance
Tolerant
Flooding Tolerance
High
Drought Tolerance
Very Low
pH Tolerance
Tolerant of acid to slightly alkaline soil (pH 5.0 to 7.5)
Shade Tolerance
Full Sun
Plant Hardiness Zone
Zone 2 (a/b) | Zone 3 (a/b) | Zone 4 (a/b) | Zone 5 (a/b) | Zone 6 (a/b)
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