Subalpine Larch Larix lyallii

Detailed Listing For
Botanical Name:

Larix lyallii

Family:

Pinaceae

Genus:

Larix

Species:

lyallii

Common Name:

Subalpine Larch

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  • Larix lyallii

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Characteristics
Growing Info, follow in order:
Scarification: none required.
Germination: sow seed 1/4 deep, tamp the soil, keep moist, mulch the seed bed, remove mulch upon germination.
Other: fall sowing in mulched beds is prefered to artificial stratification.
Physical Characteristics : A decidious Tree growing to 25 m (82ft 0in). It is hardy to zone 3 and is not frost tender. The flowers are hermaphrodite (have both male and female organs) The plant prefers light (sandy), medium (loamy) and heavy (clay) soils.The plant prefers acid, neutral and basic (alkaline) soils..It can grow in semi-shade (light woodland) or no shade.It requires moist soil.
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Conservation Plant Characteristics

Larix lyallii Parl.
subalpine larch
LALY

Summary
Duration Perennial
Growth Habit Tree
Native Status L48 (N), CAN (N)
Federal T/E Status
National Wetland Indicator
Morphology/Physiology
Active Growth Period Summer
After Harvest Regrowth Rate
Bloat None
C:N Ratio High
Coppice Potential No
Fall Conspicuous Yes
Fire Resistant No
Flower Color Yellow
Flower Conspicuous No
Foliage Color Green
Foliage Porosity Summer Dense
Foliage Porosity Winter Porous
Foliage Texture Fine
Fruit/Seed Color Brown
Fruit/Seed Conspicuous No
Growth Form Single Stem
Growth Rate Slow
Height at 20 Years, Maximum (feet) 15
Height, Mature (feet) 40.0
Known Allelopath No
Leaf Retention No
Lifespan Long
Low Growing Grass No
Nitrogen Fixation None
Resprout Ability No
Shape and Orientation Erect
Toxicity None
Growth Requirements
Adapted to Coarse Textured Soils Yes
Adapted to Fine Textured Soils No
Adapted to Medium Textured Soils Yes
Anaerobic Tolerance None
CaCO3 Tolerance None
Cold Stratification Required No
Drought Tolerance High
Fertility Requirement Low
Fire Tolerance Low
Frost Free Days, Minimum 90
Hedge Tolerance None
Moisture Use Low
pH, Minimum 3.9
pH, Maximum 5.6
Planting Density per Acre, Minimum 430
Planting Density per Acre, Maximum 1200
Precipitation, Minimum 26
Precipitation, Maximum 95
Root Depth, Minimum (inches) 36
Salinity Tolerance None
Shade Tolerance Intolerant
Temperature, Minimum (°F) -58
Reproduction
Bloom Period Late Spring
Commercial Availability Contracting Only
Fruit/Seed Abundance Low
Fruit/Seed Period Begin Summer
Fruit/Seed Period End Fall
Fruit/Seed Persistence No
Propagated by Bare Root Yes
Propagated by Bulb No
Propagated by Container Yes
Propagated by Corm No
Propagated by Cuttings No
Propagated by Seed Yes
Propagated by Sod No
Propagated by Sprigs No
Propagated by Tubers No
Seed per Pound 134000
Seed Spread Rate Slow
Seedling Vigor Low
Small Grain No
Vegetative Spread Rate None
Suitability/Use
Berry/Nut/Seed Product No
Christmas Tree Product No
Fodder Product No
Fuelwood Product Medium
Lumber Product No
Naval Store Product No
Nursery Stock Product Yes
Palatable Browse Animal Medium
Palatable Graze Animal
Palatable Human No
Post Product No
Protein Potential
Pulpwood Product No
Veneer Product No
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Subalpine Larch ( Larix lyallii ), or simply Alpine Larch , is a coniferous tree native to northwestern North America . It lives at very high altitudes (1800-2400 m) in the Rocky Mountains of Idaho , Montana , British Columbia , and Alberta . There is a disjunct population in the Cascade Range of Washington . Subalpine Larch is hardy and can survive very low temperatures in thin rocky soils, which is why the tree is often found near treeline. However, it can grow in a variety of soils and with or without shade, as long as the soil is moist but well-drained.
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