Formosan Alder (Alnus Formosana) is a perennial tree in the Betulaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Alnus formosana is a medium-sized deciduous tree endemic to Taiwan, known for its fast growth and ecological importance along riverbanks.

Formosan Alder

Formosan Alder

Alnus Formosana

Alnus formosana is a medium-sized deciduous tree endemic to Taiwan, known for its fast growth and ecological importance along riverbanks.

Quick Facts

Type
tree
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, silty
Indoor:No
Outdoor:Yes
Garden Use:soil stabilization, nitrogen fixer, shade provider

Care Calendar

Monthly care tasks for Formosan Alder

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Formosan Alder
Formosan Alder detail

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Taxonomy

Family:Betulaceae
Genus:Alnus