Answer: Acer palmatum (Japanese Maple) seeds (called samara) lose their viability unless stored at a constant 35F-40F degrees. Seeds need to ripen in a warm, moist environment for 2-3 months (called stratification) before they'll germinate. For these reasonsJapanese Maples are generally propagated by cuttings. Sometimes seeds that fall from Japanese Maple trees accidentally receive this treatment, courtesy of Mother Nature, and will germinate at the foot of the parent tree. But, usually, they die off beforeproducing a new maple tree. You can locate young maples through local nurseries.
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