Pollination Guidelines for Fruits in Alberta
APPLES (Malus) In order to have fruit, you need a second tree for cross pollination within 150 m of your tree. Most apples can by pollinated by insects carrying pollen from a neighbor’s tree. Flowering crabs can pollinate if they produce fruit and flower at the same time as your apple tree. A few varieties of ornamental flowering crabs, such as Spring Snow have sterile pollen and do not produce fruit, and therefore do not pollinate. Trees of the same variety cannot pollinate each other. i.e.) a Goodland Apple will not pollinate another Goodland Apple. Plant in full sun with well-drained soil.
APRICOTS (Prunus mandshurica) Needs a pollinator and are more dependable if other varieties or Nanking cherry are nearby. Requires full sun and good moisture but not standing water.
BLUEBERRIES (Vacinium) Are self-pollinating, but two or more varieties may produce larger, sweeter berries. Plant in partial shade with acidic, peaty moist soil.
CHERRIES (Prunus) Are self-pollinating and only one tree is needed for fruit production. Fruit sweetens as it turns a darker red. Plant in full sun with well-drained soil. Hardy Prairie varities includes Evans and Carmine Jewel. A new Romance series from the Uiniversity of Sask. unclude, Juliette, Romeo, Cupid, Valentine and Crimson Passion.
CURRANTS, GOOSEBERRIES & JOSTA BERRIES (ribes) are self-pollinating. If grown near other ribes, yields are better. Black currants will not cross pollinate with red or white currants and the reverse is also true. Plant in full sun with adequate air circulation.
GRAPES (Vitis) Are self-pollinating but having 2 or more varieties ensure pollination. Regular pruning is essential for good fruit production. At the end of June, remove all suckers from the base of leaves. Remove ends of canes two to three leaves past the last fruit cluster and remove all non-producing canes. Requires full sunlight (southern exposure)
HASKAP or HONEY BERRIES (Lonicera) Require a pollinator to produce fruit. One pollinator can pollinate up to 5 plants. Does not like very wet soil and requires a well-drained site. Varietes include Tundra, Borealis, Berry Blue, Svetlana. The Univeristy of Sask. are crossing varieities and there have been many new introductions recently.
PEAR (Pyrus) Cross pollination required. Fruit production increases if crossed with another variety. Full sun and well drained soil
PLUMS (Prunus) Each variety requires a specific pollinator. For cross pollination to occur, you must have two varieties that bloom at the same time. and within a city block. Brookgold Pollinator = Bounty, Dandy or Nanking Cherry
Brookred Pollinator = Opata or Pembina
Pembina Pollinator = Brookred or Opata
RASPBERRIES (Rubus) – Self-pollinating. Fruit is produced on second year canes, which then die. Prune dead floricanes canes at the base after harvest. They are a root crop that send up new shoots; so stay on top of your patch by thinning some of the new canes, resulting in more light, air circulation and food for bigger, better berries. Full sunlight and good moisture are required.
SASKATOONS (Amelanchier) These are self-fertile and require full sunlight for maximum fruit production.
STRAWBERRIES (Fragaria) They are self pollinating. Require full sun and well-drained soil.