Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Betulaceae

Genus:

Alnus

Species:

Alnus × fallacina

USDA Symbol:

ALFA4

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Tree

Height:

1500 cm

Drought Tolerance:

Low

Bloom Months:

mar,apr

Keystone Species Ranking

Caterpillar Keystone:

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

Garden & Ecology Notes

Wildlife Value:

birds, small mammals

Fall Color:

yellow

Soil Requirements

Soil Type:

moist, fertile, well-drained loamy soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

tolerates poor drainage

Moisture:

consistently moist

Notes:

Commonly found in riparian zones and wetlands.

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–90 days

Germination Time:

14–60 days

Notes:

Seeds require light for germination and perform best on moist substrate at cool temperatures.

The above propagation data sourced from Claude AI