Bonanza is hardy outdoors in zones 6 to 9 and is one of the few peaches genuinely suited to container life thanks to its naturally dwarf habit. In the ground it makes a neat 4 to 6 ft. specimen; in a large pot it stays even more controlled and can be moved to a sheltered spot in hard winters.
Planting
- Choose a site in full sun, at least six to eight hours daily, with good air circulation to reduce disease pressure.
- Plant in well-draining soil; peaches resent wet feet, so improve heavy clay or use a quality potting mix in a container with drainage holes.
- Dig the hole twice as wide as the root ball but no deeper, setting the tree so the soil line matches its previous depth and any graft union sits a couple of inches above the soil.
- Backfill with native soil, firm gently to remove air pockets, and water in thoroughly to settle the roots.
- Mulch with two to three inches of bark or compost to hold moisture, keeping the mulch pulled back a few inches from the trunk to prevent rot.
Care & maintenance
- Water. Keep soil evenly moist during the first season and through fruit development; containers dry fast and may need watering daily in summer heat.
- Feed. Apply a balanced fruit-tree fertilizer in early spring as growth begins, with a lighter follow-up after bloom; avoid heavy nitrogen late in the season.
- Light & temperature. Full sun is essential for sweet fruit. Bonanza needs a moderate winter chill to fruit well and is reliable in zones 6 to 9; in colder areas, grow it in a pot and shelter it in an unheated garage or against the house over winter.
- Prune. Prune in late winter while dormant, opening the center to an airy vase shape and removing crossing or dead wood; peaches fruit on last year's growth, so renew some young shoots each year.
- Pollinate. Bonanza is self-fertile, so a single tree will set a crop on its own; no second variety is required.
- Pests & disease. Watch for peach leaf curl, brown rot, and borers; a dormant-season fungicide or copper spray before bud break and prompt removal of mummified fruit go a long way.
- Harvest. Fruit ripens from June to July; pick when the background color turns gold, the flesh near the stem gives slightly to gentle pressure, and the peach releases with an easy twist.