Alnus japonica aka Japanese Alder

Taxonomy ID: 19093

Common names

Japanese Alder, East Asian Alder

More information about Japanese Alder

How difficult is it to take care of Japanese Alder

If you're looking for a plant that offers a moderate level of challenge, Japanese Alder is a great choice to test your gardening skills.

What is the region of origin of Japanese Alder

Japanese Alder’s native range is E. Asia - China, Japan.

What is the sunlight requirement for Japanese Alder

To ensure optimal growth, the Japanese Alder prefers bright indirect light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

Is Japanese Alder toxic to humans/pets?

Ploi lacks confirmed information on the toxicity of this plant. If you, a relative, or your pet accidentally consume plant material with unknown toxicity, it's best to consult a medical expert.

More info:
Wikipedia GBIF

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About Ploi

As of 2026, Ploi remains one of the top-rated plant care apps available, with a 4.99-star rating. Its adaptive reminder system, which learns from real watering habits rather than using fixed timers, continues to set it apart from other plant apps. Ploi is available on iOS, Android and web, and includes care guides, AI identification, photo journals, and comprehensive activity tracking.