Acer negundo californicum (montalvo ‘Itchy’)

Acer negundo californicum (montalvo 'Itchy')

We collected the seeds for these specimens from Montalvo, SF, USA. Reason for the itchy, while collecting these under torchlight they made the fingers itch…
M winter seeded these and we have about 20 specimens.

California Box Elder.

Family: Aceraceae (ay-ser-AY-see-ee)
Genus: Acer (AY-ser)
Species: negundo var. californicum

Category:
Trees

Height:
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Spacing:
20-30 ft. (6-9 m)

Hardiness:
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Bloom Color:
Pink

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Deciduous
Good Fall Color

Other details:
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Seed Collecting:
It works…

About the Author

David

Is pushing forward with his design of the Karhula gardens. Favorite quote atm 'Rome was not built in a day'