White Spruce
Picea glauca
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Description
White Spruce is a coniferous evergreen tree native to northern temperate and boreal forests in North America. It plays a crucial role in its native ecosystems as a keystone species, providing habitat and food for a variety of wildlife, including birds and small mammals. In agroecology and regenerative agriculture, White Spruce is valued for its ability to act as a windbreak, reduce soil erosion, and contribute to carbon sequestration. Its dense foliage offers excellent shelter, while its roots help stabilize the soil. Historically, Indigenous peoples have used White Spruce for its medicinal properties and as a material for construction and crafting. In a food forest, it serves as an overstory layer, supporting biodiversity and enhancing microclimates. Guild companions include nitrogen-fixing plants like alders and shrubs such as blueberries that thrive in similar acidic soil conditions.
Growing Details
White Spruce thrives in well-drained, acidic to neutral soils with full sun exposure. Before planting, prepare the soil by incorporating organic matter to improve drainage and nutrient content. Mulching around the base helps retain moisture and suppress weeds. Companion plants include blueberries and other acid-loving shrubs. Common mistakes include overwatering and planting in poorly drained soils. Harvesting of resin should be done carefully to avoid damaging the tree. Post-harvest, store resi
Tags
Keystone Specie
Carbon Farming
Attracts Wildlife
Fire Wood
Building Wood
Windbreak
Erosion Preventing
Visual Appeal
Tea
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Picea glauca</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to North America, particularly in Cana
applicable geo region: Boreal and northern temperate forests
language used: en
Flowering:
middle
of May for 30 days
Harvest:
middle
of August for 60 days
Seed Start:
beginning
of April
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(1/5)
edible uses: The inner bark can be dried and ground into a powder for use as a flour substitute in emergency situations. It is important to note that this should only be done sustainably and with respect for the tree's health.
Medicinal Rating:
(3/5)
medicinal uses: White Spruce has been used in traditional medicine by Indigenous peoples for its antiseptic and anti-inflammatory properties. The resin can be applied to cuts and wounds to promote healing, while teas made from the needles are used to alleviate respiratory ailments such as colds and coughs. The needles are rich in vitamin C, which can help boost the immune system.
health concerns: Consumption of the inner bark should be limited to survival situations due to potential digestive discomfort.
other uses: The wood is prized for construction, paper production, and as a source of firewood. It is also commonly used as a Christmas tree due to its symmetrical shape and pleasant aroma.
Scientific Literature
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Botanical data
specie: Picea glauca
common names: White Spruce; Canadian Spruce; Western White
family: Pinaceae
sub family:
tribe:
sub tribe:
genus: Picea
Growing Conditions
area needed: 10.0 m
spacing: 3.0 m
growing difficulty: Medium
Deciduous / Evergreen:
Seed Temp (Opt/Min/Max): 20ยฐC / 15ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 0ยฐC / -40ยฐC / 30ยฐC
water demands: Medium
humidity:
light demands: High
root type: Deep
frost tender: Low
hardness:
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(3/10)
first harvest: 20 years
life span: 300 years
succession: Mid
growth rate: Medium
max height: 30.0 m
max width: 7.0 m
soil preference:
Medium (Loam)
pH preference:
Acid
flower type:
Monoecious
growth details: White Spruce thrives in well-drained, acidic to neutral soils with full sun exposure. Before planting, prepare the soil by incorporating organic matter to improve drainage and nutrient content. Mulching around the base helps retain moisture and suppress weeds. Companion plants include blueberries and other acid-loving shrubs. Common mistakes include overwatering and planting in poorly drained soils. Harvesting of resin should be done carefully to avoid damaging the tree. Post-harvest, store resi
Potential Disturbances: Common pests include spruce budworm and bark beetles. To manage these naturally, encourage beneficial insects like parasitic wasps and predatory beetles. Planting companion plants such as tansy can help repel pests. Fungal diseases like needle cast can be mitigated by ensuring good air circulation and avoiding overhead watering. Organic treatments like neem oil can be used for pest control.
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