Peach
Prunus persica
Also known asCommon peach · Nectarine (smooth-skin form) · Pesca · Pecher · Durazno
Environment
The bounded range this crop tolerates.
Climate and zones
- USDA zones
- 5–10 (winter low around -29°C)
- Frost
- frost hardy
- Season
- warm (summer, frost-sensitive)
Growing systems
Root mass: heavy. Thin-channel systems can't hold this crop.
Growing media
| Medium | pH effect | Retention | Bacterial surface |
|---|---|---|---|
| Soil-based mix (Potting soil) | varies | high | high |
Nutrient demand by stage
NPK ratios are relative weights. EC targets shift through the plant's life.
| Stage | N | P | K | EC (mS/cm) |
|---|---|---|---|---|
| seedling | 1 | 1 | 1 | 0.8 |
| vegetative | 2 | 1 | 2 | 1.4 |
| flowering | 1 | 1 | 3 | 1.6 |
| fruiting | 1 | 1 | 3 | 1.6 |
Companion-growing notes
- Heavy uptake of nitrogen. Co-grown crops with the same demand will end up deficient even at "correct" EC.
- High transpiration. Regular reservoir top-ups needed during fruiting.
Aquaponics suitability
Not recommended
Fish waste alone doesn't supply enough of what this crop demands. Grows in hybrid systems with supplemental dosing, but expect active management.
Care notes
Not a standard hydroponic crop, but dwarf peach trees on dwarfing rootstock can be grown in large containers (50 L) for outdoor aquaponics integration. pH 6.0-7.0. Full sun (DLI 20+ mol/m2/day). Self-fertile; most peach varieties don't need a pollinizer. The trees must experience winter outdoors for the chilling requirement; indoor year-round growing is not feasible for standard varieties. Fruiting begins at 2-3 years from grafted nursery stock. Each mature container tree produces 5–20 kg of fruit. Peach trees require annual pruning (open-center/vase shape) and careful disease management: peach leaf curl (Taphrina deformans) is the most common fungal disease, preventable with a single dormant-season copper spray. Brown rot (Monilinia) affects ripening fruit. For aquaponics integration, container peach trees irrigated with nutrient-rich system water during the growing season produce well. Genetic dwarf varieties ('Bonanza', 'Garden Gold') stay under 2 m and are well-suited to large containers.
Notable varieties
| Cultivar | Type | Days | Notes |
|---|---|---|---|
| Elberta | open pollinated | 1095 | 1875 Georgia chance seedling. The original American freestone yellow peach, basis for half the cultivars grown since. Zones 5-9, 800 chill hours. Late-season, ripe August. Self-fertile. The classic Southern peach. |
| Redhaven | open pollinated | 1095 | 1940 Michigan State release. Yellow freestone, red-blushed skin, sweet. Zones 5-8, 950 chill hours. The most widely-planted peach in cooler climates. Self-fertile. Mid-season. |
| Reliance | open pollinated | 1095 | New Hampshire 1964 release. The hardiest peach available, tolerates -23C in dormancy. Zones 4-8, 1000 chill hours. Yellow freestone, smaller fruit than Elberta but reliable production where peaches usually fail. The northern-zone peach. |
| Florida King | open pollinated | 730 | Florida 1972 release. Low-chill cultivar (350 hours), the standard peach for Florida, south Texas, and similar warm-winter regions where most peaches won't get enough chill. Yellow freestone. Self-fertile. |
| Donut peach (Saturn) | open pollinated | 1095 | Flat-shaped Chinese peach type, sweet and almond-noted. Zones 5-9, 400-500 chill hours. Less juicy than round peaches, easy eating, kid-favorite. Sometimes called Stark Saturn or peento type. |