Description
This stately PNW deciduous tree is aptly named as it has the largest leaves in the Aceracea clan. Other notable traits are that it grows extremely fast offering cool summer shade in very little time. The large clusters of bright yellow green flowers can produce heavy nectar flows and abundant pollen to pollinators in March-April. Golden and rich brown fall colour. Older trees are gradually colonnaded by moss and licorice ferns.
One notable is that this big leaf maple is one of six maple species that produces sap for an excellent dark flavourful maple syrup.
- Seed Count: 25-30
- Collection Date: August 2026
- Hardiness Zone:
- Height and Width:
- Germination test type: hand sort & cut test
How to germinate Acer macrophyllum seeds:
Sow thinly at 6 mm deep in a sandy peat layer; tamp firm. Cold stratify for 60-120 days. Keep moist. Add a thin layer of fine mulch to anchor seed down. Don’t let germinating seed freeze, dry out or migrate onto the surface as this is fatal. After cold stratification period is over, expose to spring conditions to promote germination. Good indirect light is best for seedlings. Protect seed/seedlings from rodents. I prick out seedlings when dormant and grow in individual pots for first 2-3 years for best results
