Grown since antiquity for its tart fruit, sour cherry is a small deciduous tree known only in cultivation. It probably originated in eastern Europe or western Asia from a hybrid between sweet cherry, Prunus avium, and ground cherry, Prunus fruticosa.
The shiny, dark green, oval leaves of this hardy tree have toothed edges and a pointed tip. They flush in early to mid-spring, just as the abundant cupped, white, five-petaled flowers open. Spherical, long-stemmed fruits follow the flowers, ripening in late spring or early summer.
Trees are self-fertile, fruiting without cross-pollination. For optimal production they require 1000 to 1500 hours per winter of temperatures of a few degrees above freezing.
This small, round-headed tree has spreading, dark-barked limbs, and often suckers liberally when planted on its own roots. Trees are usually propagated by grafting onto Prunus mahaleb understock.
Sour cherry prospers in full sun and evenly moist, well-drained soil, but will accept partial shade. Do not plant it where its flowers are likely to be damaged by late freezes and frosts. Its self-fruitfulness and relatively small size it make it an excellent choice for home gardens. (info source: Learn2Grow.com)
Genus - Prunus
Species - Cerasus
Common name - Evans Cherry
Pre-Treatment - Required
Hardiness zones - 3 - 8
Height - 10'-20' / 3 - 6 m
Spread - 10'-20' / 3 - 6 m
Plant type - Tree
Vegetation type - Deciduous
Exposure - Full Sun, Partial Sun
Growth rate - Medium
Soil PH - Acidic, Neutral
Soil type - Loam, well drained
Water requirements - Average Water
Landscape uses - Edible, Fruit / Fruit Tree, Mixed Border
Germination rate - 82%
Bloom season - Early Spring, Spring
Leaf / Flower color - Dark Green / White
|Germination||1. Soak the seeds in a bowl of cool water overnight. Lay the seeds on a flat surface to dry for several hours.|
2. Stratify seeds in a plastic bag full of moist sand inside the refrigerator for 90 days. Keep the sand barely moist during the cold stratification period.
3. Sow the seeds the following spring once outdoor temperatures rise above 65F (+18C) during the day and 48F (+8C) at night. Or sow indoors in the propagator or pots
4. Prepare a pot for each seed. Fill 8-inch plastic pots with garden soil taken from the bed where the trees will eventually be planted. Sow one seed in each pot at a depth of 1 inch.
5. Water the seeds to a depth of 3 inches after planting them. Maintain moisture at a 3-inch depth during the germination process.
6. Place the pots outdoors in a sheltered spot where they will be exposed to direct sun in the morning and afternoon. Protect the seeds from direct sunlight during the hottest part of the day since the soil will warm too quickly and dry out.
7. Watch for sprouting one month after sowing. Maintain the same light and moisture conditions provided to the seeds during germination until they grow to 4 inches in height.
8. Plant the seedlings into a sunny, sandy bed at least 75 days before the first frost in autumn, or shelter the seedlings in a cold frame until the following spring if it is too late in the year for planting. (info source: eHow.com)