This tree has a short greyish trunk with drooping branches that form a conical habit when young and mature to a broad rounded crown. It has glossy dark green serrated elliptical leaves and the yellow catkins (flowers) appear during spring. 

Hardiness zones 9 to 11

Alnus acuminata is naturally found from Central America to Mexico growing in well drained to wet fertile moist light soil in an open sunny position and is frost and drought tender. 

The Evergreen Alder is a rapid growing tree that is used as an informal screen around homes or for shade in open areas. It is suitable for coastal or mountain regions establishing in 3 to 5 years and is long lived. It is also planted as a background tree for screening or along the river banks and is used to absorb moisture in wet areas. The roots contain a micro-organisms that fix nitrogen from the air improving soil fertility. ID 447

Note:
Care should be taken when selecting a site allowing ample room for it to grow as it has vigorous roots that can lift concrete and block drains.

Alnus (ĂL-nus) acuminata (ah-kew-min-AH-tah)

syn. Alnus jorullensis. “Alnus” was the Latin name for the European species A. glutinosa; “jorullensis” after Jorullo, a volcanic mountain in Mexico.

Betulaceae (BE-tul-AY-see-ee)
Birch