American Sycamore
Scarification: Soak in water, let stand in water for 24 hours.
Stratification: cold stratify for 90 days.
Germination: sow seed 1/4" deep, tamp the soil, keep moist, mulch the seed bed.
Himalayan Cedar
Scarification: Soak in water, let stand in water for 12 hours.
Stratification: Seed will germinate without pretreatment. Cold stratification for 14 to 30 days hastens results.
Germination: sow seed 3/4" deep, tamp the soil, mulch the seed bed.
Black Locust
Scarification: Soak in hot tap water, let stand in water for 24 hours,If seeds do not swell treat with boiling water.
Stratification: none required.
Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed.
Other: if boiling water treatment does not allow seed to imbibe, sulfuric acid treatment is required, innoculant could be used.
Strawberry Madrone
Scarification: Soak in water, let stand in water for 24 hours.
Stratification: cold stratify for 60 days.
Germination: sow seed 1/16" deep, tamp the soil, mulch the seed bed.
Green-Leaf Manzanita
Scarification: Pour boiling water over seed , let stand in water for 12 hours; or small numbers of seed , file or sand through the outer seedcoat, let stand in water for 12 hours.
Stratification: cold stratify for 30 days.
Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed.
Southern Magnolia
Scarification: Soak in water, let stand in water for 24 hours.
Stratification: cold stratify for 120 days.
Germination: can be sown outdoors in the fall for spring germination, sow seed 1/4" deep, keep moist, mulch the seed bed, remove mulch upon germination.
Ponderosa Pine
Scarification: Soak in water, let stand in water for 24 hours.
Stratification: cold stratify for 60 days.
Germination: sow seed 1/8" deep, tamp the soil, mulch the seed bed.
African Baobab
Scarification: Soak in hot tap water, let stand in water for 24 hours. Carefully file through the seed coat.
Stratification: none required.
Germination: sow seed 1/2" deep, tamp the soil, keep moist but not wet.
Other: Germination tends to be slow, Germinates faster in warmer temperatures.