'MacDonald' Manitoba Maple (Boxelder)
Latin Name: Acer negundo
Native Range: Western Canada, Central United States
Seed Source: Selected stands in the Qu'Appelle Valley near Katepwa Lake, Saskatchewan
Height and Spread: 15m x 5m (25 years)
Overview: The 'MacDonald' seed strain was developed for agroforestry planting in the Canadian prairies. It is a excellent long-lived tree species that is fast growing and ultra hardy. 'This seed stain was named in honour of Dan MacDonald a long time tree planting inspector at the Dominion Forest Nursery Station at Indian Head from 1913 to 1949.
Fruits: A samara consisting of two oval carpels joined at the base and each terminating in a broad membranous wing. About 25 seeds per gram.
SEED TREATMENT / SOWING
Stratification: Stratify in moist sand at 5°C for 45 days
Ideal sowing time: Spring (stratified seed) or fall (non-stratified)
Sowing instructions: Sow 2 cm deep, 50 seeds/meter; Greenhouse - sow 3 seeds per cell.
Growing conditions: Best growth on medium textured soils with soil pH 7.0 to 8.0. Fertilization is not required.
'MacDonald' Manitoba maple is used in farm or field shelterbelts where a fast growing, flood tolerant, tough tree is needed. The seed strain is easy to grow, does well on most soils, frost and drought resistant. Its sap can used to produce maple syrup.