Toxic Plant Known to be toxic - Foliage can be toxic to livestock, particularly horses, when wilted or dried. Leaves can cause serious illness and potentially fatal poisoning in horses.
Image of Acer nigrum
Source: Douglas Goldman
Acer nigrum

Plant Names

image of Deciduous Tree
Acer nigrum
Black Maple
Érable noir

Plant Characteristics

Bloom Colour: Green Bloom Period: Apr - Apr
Max Height: 95.0 feet
Max Width: 60.0 feet
Light Condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will come back year after year
Gardener Experience:
plant self seeding Self-seeding
Landscape Uses: No landscape information available.
Ecological Benefits:
butterfly host Butterfly host
keystones species Keystone species
Tolerates:
drought Tolerant Tolerates drought conditions
Limestone Tolerant Tolerates limestone conditions
Acidic Soil Tolerant Tolerates acidic soil conditions
Juglone Tolerant Tolerates juglone conditions
Special Features and Considerations:
GRASP candidate This plant is a GRASP candidate

Seed and plant distribution status

No seeds available for this plant.
We currently accept seeds for this plant

Fun Facts

Black Maple is closely related to sugar maple, growing in rich forests, floodplains, and moist woodland areas. It has a dense, rounded crown, dark grey bark, and large leaves. It is an excellent choice for large properties and restoration projects. It is not suitable for small urban gardens. An excellent choice as a long-term shade tree where there is room for a mature canopy. It generally slow to moderately growing and can live for many decades. Young trees benefit from protection from deer and other browsing animals. Avoid planting directly beneath overhead utility lines. The extensive root system and mature canopy make it unsuitable for very small yards or locations close to foundations, septic systems or narrow planting beds.

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Acer nigrum
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Ecological Benefits

Butterflies Supported by Acer nigrum

Specialized Bees Supported by Acer nigrum

No bee data available for this plant.

Complementary Plants

Substitute For Non-Native Plants

  • Acer japonicum (Japanese Maple)
  • Acer platanoides (Norway Maple)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: 3/8 inch
  • Sow by January
  • Stratification conditions: Soak for 24h
  • Stratification duration: 90 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: June
  • Harvesting indicator:
    • Pods are released from plant
  • Harvesting:
    • Nut has been released from tree
  • Seed viability test:
    • None
  • Packaging measure: Six (6) seeds (eyeball)
  • Seed storage:
    • Air Dry in paper bag or open container, for a few days until crisp
    • Shake seeds to move them once in a while to prevent molding
  • Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
  • Remove non-seed material
  • No harvesting video available at this time.

Toxicity Notes

Foliage can be toxic to livestock, particularly horses, when wilted or dried. Leaves can cause serious illness and potentially fatal poisoning in horses.

GRASP Candidate

Rare/endangered native plants within 50km radius of Ottawa approximately. Burton is anchor study, plus iNaturalist observations to corroborate if any recent spotting.