Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Betulaceae

Genus:

Alnus

Species:

Alnus hirsuta

Growth Characteristics

Growth Habit:

Tree

Height:

2000 cm

Drought Tolerance:

Low

Bloom Months:

mar,apr,may

Bloom Colors:

yellow-green

Keystone Species Ranking

Caterpillar Keystone:

★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

birds, small mammals, bees

Fall Color:

yellow

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–90 days

Germination Time:

14–30 days

Notes:

Seeds require light for germination. Collect catkins when mature but before dispersal for best viability.

The above propagation data sourced from Claude AI