Duchess of Oldenberg, also known as Duchess is an heirloom apple from Russia, 1700, introduced into England c. 1815 and brought to the US in 1935.
Good cooking apple, fair eating apple. Beautiful, medium to large sized greenish yellow with bright red stripes, splashes and russeted dots. Flesh fine, firm and juicy. flavor tart, brisk and refreshing - first class. Keeps for only a few weeks.
Tree is very hardy and vigorous, early and abundant bearer. Will tolerate heavier soils. Diploid and disease resistant. Ready to harvest in August in upstate New York, fruit does not keep for long. Can harvest pre-ripening for cooking. Hardy to zone 3.