Description
An award winning Japanese maple cultivar with characteristic shallow 7 lobed leaves. New leaves emerge in the spring a bright chartreuse with red edges to later become emerald green leaves in the summer then, in the fall, becomes the most memorable brilliant retina scorching scarlet in the fall.
It has a natural handsome rounded carefree form suitable for formal gardens to landscaping and street trees. The deep pink samara stand out in fantastic contrast to the summer leaves.
Seed comes from an isolated grove consisting of only this cultivar.
- Seed Count: 15-20
- Collection Date: Oct 2025
- Hardiness Zone: 5-9
- Height and Width: 5m x 5m
- Preferred conditions: Full to semi sun; humus rich acidic soil
- Germination test type: cut test +90%
- Family: Sapindaceae
How to germinate Acer palmatum “Osakazuki” seed:
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.
