Plant Base Online (beta)

botanical name:
Alnus firma
Alnus firma © Deeproot Plant Base
common name:  Japanese Alder
synonyms:  Alnus yasha, Alnus yasha var. macrocarpa
family:  Betulaceae
characteristics: tree
height: 9.00m
width: 8.00m
growth rate: medium
growth habit: conical
leaf colour: green
flower colour: light brown
fruit colour: brown & green
stem/bark: brown
main season: Spring
aspect: full sun, part shade
conditions: moist soil, wet/waterlogged soil, clay soil
preferred soil pH: any
minimum temp: -23°C
USDA zone: 6 to 9
Small, densely branched deciduous tree or large shrub. Sharply toothed ovate leaves with heavy veining. Pendant, golden yellow-brown male catkins in spring.

Moist or wet soil in sun or part shade.

From seed or hardwood cuttings in winter.

Deeproot tree logo

You can also install Plant Base on your computer:

  • self contained application
  • more features
  • update and add records
  • larger and higher quality pictures
  • fast and efficient
  • always available, no connection needed
  • Windows, Mac and Android

details ...