Scarification: Soak in water, let stand in water for 24 hours
Stratification: cold stratify for 60 days
Germination: sow seed 3/8" deep, tamp the soil, mulch the seed bed
Other: can be fall sown without stratification.
Parthenocissus tricuspidata, also known as Boston Ivy, Grape Ivy, Japanese Creeper, Japanese Ivy, and Woodbine, is a deciduous woody vine native to eastern Asia. It can grow up to 30 meters tall and attaches to surfaces using small branched tendrils tipped with sticky disks. Its leaves are palmately lobed with three lobes, occasionally unlobed or with five lobes, and turn red in the autumn. The inconspicuous greenish flowers grow in clusters and the fruit is a small dark blue grape. This plant is commonly grown as a climbing ornamental plant on buildings and can significantly reduce cooling costs by shading walls during the summer. It is popular with birds and can be cut back to within 1 meter of the base if required to rejuvenate the plant.