The doughnut peach, also known as the Saturn peach, is a flat, concave peach variety. It produces fruit with white flesh that is sweeter than the flesh of regular yellow peaches. The doughnut peach is a cling-free peach, so the pit is easily removable and does not stick to the fruit. The doughnut peach does well in all but the coldest regions of the UK Some varieties of the Saturn peach are frost-resistant.
Select a planting site that gets full sun, which is eight hours daily. Dig a hole in the planting site that is twice as wide as the peach tree's pot, and just as deep as the pot. Break up any clumps of soil with your hands. If your soil is of poor quality, remove half of what you dug up and replace it with organic compost. Mix the compost into the soil you dug up with a shovel.
Remove the doughnut peach tree from its container and lower it into the hole. The base of the tree should be level with the top of the soil. If it sits too low, remove the tree and backfill the hole with enough soil to bring the base up to the rest of the ground. Replace the tree in the hole.
Backfill the hole with the soil you previously dug up, or the soil and compost mixture. Firm the soil with your hands, then step on it lightly. Stand back and make sure the tree is straight.
Mound up soil around the base of the tree to create a circular dam. Create the dam at a 30 cm (1 foot) radius around the tree. Mound up the soil 7.5 to 10 cm (3 to 4 inches). Water the tree until it reaches the top of the dam, then let it soak into the soil.
Apply a balanced granular fertiliser to the soil around the base of the tree upon first planting, then again once the tree begins producing shoots. Follow the package directions for application instructions.
Prune the doughnut peach tree in early spring using pruning shears. Remove any dead or damaged branches, cutting them back to the trunk. Prune any crossing branches or those that point downwards or horizontally. Maintain a "v" shape of the tree during your pruning.
Apply and maintain a 10 cm (4 inch) layer of organic mulch around the base of the tree. This layer will keep down weeds and keep moisture in the soil. Continue watering the tree frequently enough to keep the soil moist.
Once you plant the doughnut peach, it may not fruit for up to three years.