Hawthorn, Lavalle
Crataegus x lavallei
Rosaceae - Rose

Description

Leaves: Alternate; simple; elliptic to obovate; 2" to 4" long and half as wide; deciduous; upper 2/3's of margin serrate with no lobes; shiny dark green and glabrous above when mature; densely, finely pubescent beneath, especially on veins; thick; stay on late in fall and turn dark purple or brown.

Twigs/buds: Twigs stout; greenish, with many hairs at first, turning glabrous and gray-green as they age; thorns are fairly short and stout; may have buds; relatively few thorns present.

Flowers/fruit: Flowers perfect, white, 3/4" diameter, similar to C. douglasii. Fruit fairly large; a 5/8" to 3/4" diameter pome, bright orange-red when mature, somewhat glossy; persistent into winter.

Bark: Similar to other Crataegus species: dark red to grayish; shreddy, scaly or sometimes blocky when young; weakly furrowed, ridged, scaly, and often fluted or knotted when older.

Wood: Likely similar to other Crataegus species: heartwood reddish-brown, sapwood light-colored; hard, heavy; diffuse-porous, close-grained; used to make handles for tools and canes.

General: A hybrid of C. crusgalli and probably C. pubescens. Maybe not as tough as some other hawthorns, though pH adaptable. Shade intolerant. Thorns or spines that can be dangerous; use thornless varieties if possible.

Landscape Use: A small, dense-canopyed tree with an often lop-sided appearance. It has nice flowers, attractive fruit, and dark-green leaves. Though supposedly cold-hardy, I have seen what appears to be cold damage on these trees in Logan. Zones 4-8.

Cultivars: 'Lavalle'.

Characteristics

General

Family Rosaceae - Rose
Cultivar Availability Yes
Hardiness Zone 4-8
Type Broadleaf
Utah Native No

Growth

Growth Rate Medium
Mature Height Low
Longevity Medium
Is Good Under Power Lines Yes
Crown Shapes Irregular

Ornamental

Bark No
Fall Color Yes
Flowers Yes
Foliage Yes
Fruit Yes

Tolerance

Shade Low
Salt Medium
Drought High
Poor Drainage Medium
Alkalinity High
Transplanting Medium