How to Grow Donut Peaches in New Zealand

Updated June 2026

The flat, sweet, easy-eating peach that thrives across most of the country, with low-chill cultivars for the warm north

Is a Donut Peach Right for Your Climate?

The key question with any peach is winter chill, the number of cold hours that break dormancy. Choose your nearest climate below and the tool tells you whether you have enough chill, which cultivars to pick, and how to handle frost and leaf curl.

Climate and Position

Donut peaches need winter chill to break dormancy and fruit well. Standard donut types such as Saturn need around 400 to 600 chill hours, while low-chill cultivars such as TangOs and UFO need only about 150 to 300 hours. Most of New Zealand comfortably delivers that chill, and the cool and cold South Island has it in abundance. Only the warm far north is short on chill, where low-chill cultivars are the right pick.

Give the tree full sun and an open, airy position with good air movement, which also helps reduce leaf curl. The dormant winter tree is frost-hardy, so the real risk is a late spring frost catching the open blossom, which can wipe out that year's crop. A sheltered spot, or a position where you can throw frost cloth over a smaller tree on a frosty spring night, makes a real difference.

Planting

Plant bare-root donut peach trees in winter, from about June to August, while they are dormant and leafless. Bare-root is the cheapest way to buy a fruit tree and they establish well in the cool season. Dig a generous hole in free-draining soil in full sun, spread the roots out, and plant to the same depth the tree was grown at, with the graft union kept above the soil. Firm in, stake if needed, and water well.

Potted or container-grown trees can go in at most times of year. For a small garden, courtyard or balcony, choose a dwarf or patio peach and grow it in a large pot of good free-draining mix. Avoid heavy, wet ground, as peaches dislike waterlogged soil, so raise the planting area or add grit if your soil is heavy.

Watering and Feeding

Keep a young tree well watered through its first couple of summers while it establishes, and water any tree deeply during dry spells, especially while fruit is swelling, as drought stress at that stage gives small, dropped fruit. Mulch over the root zone to hold moisture and keep weeds down, keeping the mulch back from the trunk.

Feed in late winter to early spring with a balanced fruit-tree fertiliser or well-rotted compost spread around the drip line. Peaches are fairly hungry trees, but avoid heavy nitrogen, which pushes soft, leaf-curl-prone growth at the expense of fruit. A second light feed after fruit set helps carry a heavy crop.

Pruning and Thinning

Donut peaches are pruned the same way as round peaches, to an open vase shape. Peaches fruit on wood grown the previous year, so each year you remove old fruited wood and crowded growth to make room for fresh young shoots, keeping the centre open to light and air. Prune in summer after harvest, or in late winter, always with clean, sharp tools to reduce disease entering the cuts.

Thinning the young fruit is just as important as pruning. When the fruitlets are small, remove enough so those left are spaced roughly a hand-width apart along the branch. It feels harsh, but thinning gives you fewer, much larger and sweeter peaches, stops branches breaking under the weight, and keeps the tree cropping steadily year to year rather than swinging between a glut and nothing.

Harvest and Storage

Donut peaches usually ripen through summer, the exact timing depending on cultivar and region. A peach is ready when the background colour has turned from green to creamy or golden, the fruit smells sweet, and it gives slightly to gentle pressure and parts easily from the branch with a light twist. Pick into a shallow tray so they do not bruise, as ripe peaches are soft and tender.

Ripe donut peaches keep only a few days at room temperature, or up to a week or so in the fridge, and are at their best eaten fresh. A glut freezes well sliced, and they make excellent jam, chutney and bottled fruit. See the preserving guide for keeping a summer flood of peaches.

Pests and Problems

Leaf curl is the biggest problem for peaches in New Zealand. This fungal disease puffs up and reddens the new spring leaves and weakens the tree. The standard control is to spray copper at bud swell in late winter, before the buds open, and again at leaf fall in autumn, following the product label. An open, airy position and cleaning up fallen leaves also help.

Brown rot can spoil ripening and stored fruit, so remove any mummified fruit and prune for good airflow. Aphids may curl new growth, and birds will take ripe fruit, so net if needed. Late spring frost on the open blossom is the other major cause of a lost crop, handled by site choice and frost cloth on a smaller tree.

Varieties for New Zealand

Match the cultivar to your winter chill. In most of the country a standard donut peach fruits well, while the warm far north needs a low-chill type. All are mostly self-fertile, so one tree is enough.

Region and Season Notes

New Zealand runs on southern-hemisphere seasons, so the fruit-tree calendar puts planting in the cool months. Buy and plant bare-root donut peaches in winter, from about June to August, while the tree is dormant, then look for blossom in spring and fruit through summer.

• Warm far north (Northland, coastal Auckland): the only place chill can run short. Choose a low-chill cultivar such as UFO or TangOs at around 200 to 300 chill hours.
• Central and lower North Island, top of the South Island: excellent. Ample chill for standard donut peaches like Saturn and Galaxy. Watch for late spring frost on the blossom.
• Cool and cold South Island: plenty of chill, so Saturn-type donut peaches thrive. The dormant tree is frost-hardy, so the main job is protecting the spring blossom from late frost.

For frost dates and chill tuned to your exact spot, use Find My Region or open the Planting Season app.

Frequently Asked Questions

See also: How to Grow Peaches and Low-Chill Fruit for Warm New Zealand