Species sour cherry
bright-red fruits and green leaves on lime stems and brown branches

sour cherry

Prunus 'North Star'

Sour Cherry (Prunus 'North Star') is an ideal tree choice for the home orchard. This deciduous tree can reach a height of 12 feet and spread of 15 feet with a medium growth rate. It produces delicious and juicy tart cherries perfect for making pies, jams, and jellies. Its white flowers in spring are followed by abundant and showy red fruit in summer. 'North Star' is hardy in USDA zones 4-9 and requires full sun for maximum productivity. Disease and pest resistance is good. Enjoy the harvest of this unique and flavorful variety.

Cycle:

Perennial

Watering:

Average

Propagation:

Grafting Propagation,Layering Propagation,Cutting,Tissue Culture,Air Layering Propagation

Hardiness Zone:

4 - 8

Flowers:

White Flowers In Spring

Sun:

Full sun

Fruits:

red Fruits Ready In Fall

Edible:

Yes

Leaf:

Yes

Growth Rate:

High

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

When watering sour cherry trees (Prunus 'North Star'), it's important to keep the soil evenly moist during the growing season. Water in the morning, just after sunrise, so it can dry off before the evening. It's best to thoroughly soak the soil around the base of the tree rather than just give it a light sprinkle. Sour cherries typically need around 1-2 inches of water per week. Depending upon the soil and weather conditions, you may need to adjust the amount of water applied. Make sure the soil never becomes too soggy or dry; this will help discourage disease and nutrient deficiencies.

sunlight

Sour cherries (Prunus 'North Star') prefer full sun, and need at least 6 hours of direct sunlight daily for optimal growth. They can tolerate light shade, but may not produce as much fruit as when grown in full sun. For best results, provide the plant with at least 8 hours of sunlight a day throughout spring, summer, and autumn. In northern latitudes, covering or shade cloth may be required in late spring and summer to protect the plant from the intense midday sun. The plant should be shielded from extreme or concentrated afternoon sunlight and heat that may dry out the soil and damage the leaves and branches. In winter, Sour cherry should be exposed to at least 4 hours of sunlight for healthy growth.

pruning

Pruning of Sour Cherry (Prunus 'North Star') should be done every mid-late winter. The timing of pruning is important for Sour Cherry, as it blooms on last year's growth. Therefore pruning should be done before the tree breaks dormancy. aim to prune about 1/3 of the previous year's growth and remove any dead, diseased, or damaged wood. Prune branches that are crossing or that interfere with air and light circulation. Remove any suckers to encourage good fruit production and health.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Prunus 'North Star' typically starts flowering in April.

Harvest Fruit

The best time to start harvesting Prunus 'North Star' (sour cherry) is typically in July.

Hardiness Map