Ulster cherry was developed at Cornell University in Ithaca, New York in 1937, and was first introduced in 1964. It is a cross between the Schmidt and the Lambert cherries.The Ulster cherry is a midseason cultivar and it is good for fresh eating and canning. It has the dark red fruit, which is large and firm. The Ulster cherry has a higher resistance to cherry leaf spot, southwest trunk winter injury and the late spring frosts. It has a strong resistance to cracking, but young trees show the sign of cracking, but the level of cracking declines as the trees mature. Ulster can be planted in harsh climates, it is cultivated comertially in Norawy at latitude 60°N.
Cross Pollinators: Lapins, Valera, Vista,... Do not use Bing, Lambert, and Royal Ann (Napoleon) to pollinate Ulster.
Hardiness Zone: 5-8. Calculate to see if your zone falls in this range here