Plumcot

A true fifty-fifty hybrid between plum and apricot, with characteristics evenly split between both parents. Plumcots have slightly fuzzy skin like an apricot with the juiciness and sweetness of a plum. They are generally easier to find at nurseries than pluots and make excellent dual-purpose fresh eating and cooking fruits.

Plumcot seeds may germinate after cold stratification but produce highly variable seedling trees that rarely match the parent. For reliable fruit quality, purchase grafted trees on Myrobalan plum or peach rootstock. Peach rootstock provides better drainage tolerance while plum rootstock handles heavier soils. Grafted trees begin bearing in two to three years and reach full production by year five.

Plumcots are true fifty-fifty hybrids between plum and apricot, with characteristics evenly split between both parents. They are generally easier to grow than pluots and more widely available at nurseries. Plant bare-root trees in late winter, spacing 15 to 20 feet apart. Choose a full-sun location with well-drained soil and good air circulation. Most plumcots benefit from a Japanese plum or another plumcot nearby for cross-pollination.

Plumcots perform well in zones 5 through 9 with 400 to 600 chill hours depending on variety. They tolerate a wider range of growing conditions than pluots, inheriting some hardiness from their apricot parentage. The slightly fuzzy skin resembles an apricot while the juicy, sweet flesh is more plum-like. Train to an open vase form with three to four well-spaced scaffold branches.

Prune in late winter while dormant to remove dead wood, water sprouts, and crossing branches. Thin fruit when marble-sized to four to five inches apart to promote good fruit size and prevent branch breakage. Water consistently during fruit development but reduce irrigation as fruit approaches maturity. Plumcots are moderate growers reaching 15 to 20 feet tall and respond well to summer pruning to control size.

Plant a compatible pollinator such as a Japanese plum, pluot, or another plumcot variety within 50 feet. Underplant with garlic and chives to repel borers and aphids. Comfrey provides nutrient-rich mulch material. Nasturtiums and marigolds attract beneficial insects and deter pests. White clover as ground cover fixes nitrogen and supports pollinators. Avoid proximity to walnut trees.

Plumcots grow well in a range of well-drained soils with a pH of 6.0 to 7.0. They are slightly more tolerant of clay soils than pluots. Apply balanced fertilizer in early spring before bloom. Moderate feeders that do not require heavy fertilization. Mulch with organic material to maintain soil moisture and suppress weeds. Avoid excessive nitrogen which promotes soft, disease-susceptible growth.

Ideal Temperature

Hardiness Zone Compatibility

Plumcots ripen from mid-July through August depending on variety and location. Harvest when fruit develops full color and yields slightly to gentle pressure. The slightly fuzzy skin should feel supple rather than firm. Fruit flavor improves significantly in the last few days on the tree, so avoid picking too early. Taste several fruit before committing to a full harvest. Pick every two to three days as ripening is uneven across the canopy.

Storage & Preservation

Fresh plumcots keep four to six days refrigerated. Their dual nature makes them versatile for preservation. They dry well like apricots, producing chewy, sweet dried fruit. Plumcot jam combines the best qualities of both plum and apricot preserves. Freeze sliced on trays before bagging for year-round use. Can in light syrup for a pantry staple. Their balanced sweet-tart flavor makes excellent fruit leather.

Troubleshooting Common Problems

Cross-pollination requirements can be confusing since different varieties need different pollinators. Fruit cracking occurs with inconsistent watering during the final ripening period. Brown rot is the primary disease concern in humid climates. Birds and wasps target the sweet ripening fruit aggressively. Some varieties alternate bear, producing heavy crops one year and light the next.

Growing Tips

1. Plant plumcots in the sunniest available position, as they require at least 6-8 hours of direct sun daily for good fruit development. A south- or west-facing wall or fence provides reflected warmth that is especially valuable in cooler climates and helps ripen fruit more reliably.
2. Ensure a compatible pollination partner is planted within 15 meters. Most plumcot varieties benefit from cross-pollination with a Japanese plum variety such as Santa Rosa or Methley, or a compatible apricot variety. Check bloom time compatibility when purchasing to ensure the two trees flower simultaneously.
3. Train plumcots to an open vase or modified central leader shape during the first 3 years by selecting 3-5 evenly spaced scaffold branches and removing competing leaders. Good structure established early reduces the need for heavy corrective pruning later and improves light distribution throughout the canopy.
4. Thin fruit aggressively when fruitlets reach 1-2 cm in diameter, leaving one fruit every 8-10 cm along each branch. Over-cropping produces small, poorly colored fruit and exhausts the tree, leading to reduced yields in subsequent years. Thinning is the single highest-impact task for improving plumcot quality.
5. Prune plumcots in late summer immediately after harvest rather than in winter, as Prunus species pruned during dormancy are highly susceptible to silver leaf disease and bacterial canker entering through fresh wounds. Summer pruning wounds heal quickly in warm conditions, reducing infection risk significantly.
6. Apply a 7-10 cm mulch of well-rotted compost or wood chips in a wide ring around the tree each spring, keeping mulch at least 15 cm away from the trunk. Mulch conserves soil moisture during the critical fruit-sizing period, moderates soil temperature, and suppresses competing weeds without the need for herbicides.
7. Protect the harvest from birds by draping netting over the canopy as fruit begins to color. Birds can strip a small tree within days of ripening. Use fine-mesh netting draped over the whole canopy and secured at the base to prevent birds from entering beneath it.
8. Monitor for brown rot (Monilinia fructicola), the most destructive disease of plumcots, which spreads rapidly in warm, humid conditions near harvest. Remove and destroy any mummified fruit left on the tree or ground immediately, and avoid leaving damaged or split fruit on the tree. Apply a copper or sulfur-based fungicide spray 2-3 weeks before expected harvest in high-risk seasons.
9. Harvest plumcots over multiple sessions across 7-10 days as the fruit ripens unevenly across the canopy. Fruit on sun-exposed outer branches ripens first. Gently squeeze near the stem — ripe fruit yields slightly but is not mushy. Plumcots do not ripen well off the tree, so wait for true tree-ripeness before picking.
10. Refrigerate harvested plumcots promptly and consume within 3-5 days for peak eating quality. For surplus fruit, preserve by making jam, compote, or chutney within 24-48 hours of picking, or freeze halved pitted fruit on trays before transferring to bags for use in smoothies and baked goods throughout the year.