Acer henryi seeds (Henry Maple)

Description

A small upright handsome tree not very well known outside of botanical gardens. New growth is an amazing red-bronze. Vivid fall colour of deep purples and retina popping reds.  Kin to Acer cissifolium.

The University of Oregon State  has a lovely write up.   https://landscapeplants.oregonstate.edu/plants/acer-henryi

• Seed Count: 12-15
• Collection Date:  Oct 2022
• Hardiness Zone: 5-8
• Height and Width: 5m x 5m
• Preferred conditions: Full to semi sun; humus rich acidic soil
• Germination test type: cut

How to germinate Acer henryi seeds:

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. Don’t let germinating seed freeze, dry out or migrate onto the medium 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 varmits. I prick out seedlings when dormant and grow in individual pots for first 2-3 years for best results