Boulder Raspberry
Boulder raspberry is a native shrub grown for its large white flowers. Naturally occuring in the mountains and foothills along Colorado's Front Range, it has an arching, vase-shaped growth habit with thornless branches.
In May and June, it produces large white single flowers. Later, small raspberry-like fruit appear, but are grainy and inedible. Birds like to eat the fruit.
Boulder Raspberry
Boulder raspberry is a native shrub grown for its large white flowers. Naturally occuring in the mountains and foothills along Colorado's Front Range, it has an arching, vase-shaped growth habit with thornless branches.
In May and June, it produces large white single flowers. Later, small raspberry-like fruit appear, but are grainy and inedible. Birds like to eat the fruit.
Plant details
Botanic Name
Rubus deliciosus
Pronunciation
ROO-bus de-lis-ee-OH-sus
Mature Height
3 to 4 ft.
Mature Spread
3 to 4 ft.
Water usage
One Droplet: Water twice per month or less, once established.
Two Droplets: Water about once per week, once established.
Three Droplets: Water about twice per week, once established.
Flower Color
white
Bloom time
May through mid-June
Colorado Native
Yes
Natural Habitat
Colorado, New Mexico, Wyoming
Light Requirements
sun
Cold Hardiness
USDA zone 4-7
Elevation Limit
hardy to 9,000 ft.
Performance
Boulder raspberry has large, beautiful white flowers in early summer. The plant is not that noticeable when out of flower. It produces more flowers when older canes are cut out.
Maintenance
Prune out one-third of older stems in late winter to encourage more flowers.