Propagating Norway and Silver Maple Seeds: Stratification and Invasive Risks

Propagating Norway and Silver Maple Seeds: Stratification and Invasive Risks

Norway maple (Acer platanoides): Seeds need 120-day cold stratification. Place in damp paper towel in sealed bag in refrigerator. After stratification, plant 1 inch deep, keep warm (75°F). Germination sporadic. Invasive in many areas—chokes native forests, fire hazard.

Silver maple (Acer saccharinum): No stratification needed; plant like typical seeds.

Recommendation

Check University of Nevada recommended trees and consult Nevada Cooperative Extension before planting. Nurseries often sell invasive species legally until banned.