Tamarack

Larix laricina
Pinaceae
Larix laricina needles JB
Larix laricina bark JB
Larix laricina form JB
Larix laricina branch JB
Northern Ohio is at southern limit of species range. Limited to wet soils. Grows rapidly in rest of range, but slowly in southern portion. Sheds needles in winter.

Summary

Climate Tolerance
NA
Wildlife Benefits
Seeds food source for birds, small mammals
Pollination Type
Wind
Plant Hardiness Zones
2 to 5
# Butterfly/Moths that use as host
Unknown
Bloom Time
Spring (Apr)
Shade/Sun Tolerance
Full Sun to Shade: Receives less than 2 to 6 or more hours of direct sunlight
Maximum Height
Medium (40-75 ft)
Growth Rate
Rapid: 2 ft or greater per year
Soil Type
Clay: Small sized particles. Long moisture retention and low nutrient availability.
Loam: Equal mix of clay, sand, and silt. Moderate moisture retention and high nutrient availability.
Silt: Medium sized particles. Moderate moisture retention and high nutrient availability.
Soil Moisture Tolerance
Moist - Wet
Root - Fungal Association
Ectomycorrhizae: Symbiotic relationship with fungi that exist on outside of plant root cells, facilitating nutrient uptake
Pest & Pathogen Risks
Low; Larch sawfly
Urban Stress Tolerance
Low: Tree will not grow well in the urban environment
Drought Tolerance
Sensitive: Tree will become stressed during periods of drought
Coefficient of Conservatism
9
Native Status
OH-Native: Species is native to Ohio
NatureServe G-rank
G5
Plant Community Type
  • Beech Mixed: Absent
  • Oak Mixed: Absent
  • Alluvial: Absent
  • Red Maple Mixed: Absent
  • Ruderal: Absent
Bloom Color
Green
Red
Yellow
Form
Tree
Lifespan
Medium: 100-250 years
Soil pH
Acidic (pH<6.8)
Wetland Indicator Status
FACW: Facultative Wetland, usually occurs in wetlands, but may occur in non-wetlands
Soil Compaction Tolerance
Tolerant: Tree will not become stressed from soil being compacted
Heat Tolerance
Sensitive: Tree will become stressed from increased temperature due to urban heat island effects
Salt Tolerant
Sensitive: Intolerant to either aerial salt spray and/or salt present in soil
Native County Status
Cuyahoga
Geauga
Lake
Lorain
Portage
Summit
IUCN Red List Assessment
Least Concern

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