Description
Climate: In warm climates it should be planted in half shade and in cold climates they may have more intense sun exposure.
Extremely ornamental small tree, an anchor in Japanese gardens, a rare jewel in the art of bonsai, one of the most beautiful small trees for garden composition.
Magnificent example of foliage deeply cut in bowing and weeping or cascading.
Excellent garden plant, especially beautiful when growing by rivers, lakes or water mirrors.
Small flowers are red.
Its remarkable features are greatly appreciated for bonsai art.
A living sculpture, a real show with a huge range of colors throughout the year.
Prefers moist soil with good drainage, sun exposure during part of the day, morning sun or late afternoon.
Shades of coppery orange, very intense red and finally deep purple; make this fascinating species a true focal point wherever it is planted.
The species can also be grown in pots adorning balconies and places with good clarity.
Germination Guide
🌍 Japan, Korea, China, eastern Mongolia, and southeast Russia
Difficult
Acer palmatum, commonly known as Japanese maple, is a deciduous shrub or small tree native to Japan and East Asia with stunning palmate leaves. Seeds exhibit deep dormancy requiring stratification treatment to overcome dormancy and achieve germination. This species is valued for its diverse cultivars and beautiful autumn coloration.
Germination
Germination time
Expect germination in
7 – 14 days
Temperature
Min 4°C
Ideal 15°C
Max 20°C
🌡️ Temperature alternation recommended
— Natural temperature fluctuation during outdoor winter stratification can improve germination rates
Substrate moisture
💧 Medium
Seed Pre-treatment
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💧
Soaking — 24 hours
Soak seeds in hot tap water for 24-48 hours before stratification; let stand in water for 2 days
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🔨
Hot water scarification
Soak in hot tap water (110-120°F), let stand in water for 24-48 hours
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❄️
Warm then cold stratification — 120 days at 20°C
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📋
Additional notes
For dried seeds, warm stratify at 20°C for 17 weeks, then cold stratify at 4°C for 17 weeks. For fresh seeds, may require only 60-90 days cold stratification after soaking
Substrate & Container
Recommended substrate
50/50 mixture of peat moss and sharp sand, or perlite and vermiculite; well-draining substrate essential
Recommended container
4-inch pots or seed trays with drainage holes
Growing Tips
Use a 50/50 peat and sharp sand mixture for best drainage. Keep substrate moist but not waterlogged during stratification. Sow seeds 3/8 inch deep, tamp soil lightly, and apply mulch. Protect seedlings from intense direct sun initially. Do not fertilize for the first few months after germination. Multiple seeds may germinate over 2-3 years; ungerminated seeds can be re-stratified. Check regularly during cold stratification as seeds may germinate in the refrigerator.
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