Harcot Apricot
Pollination & Compatibility Guide
Harcot apricot pollination guide: Group 3 donor, early harvest, 750-hour provisional chill estimate and frost planning. Partners and bloom overlap.
Harcot Sets Fruit Alone (Partner Optional)
Named as a reliable general donor for the whole self-incompatible group, alongside Tilton, Moorpark and Blenheim.
- Ploidy / Pool
- Diploid · Pool C
- Required Companions
- 0 (Self-Fertile)
- Bloom Group
- Group 3 (Early-Mid Spring)
- Harvest Timing
- Early Season
- Chill Estimate
- ~750 h below 7.2°C Provisional; verify locallySource: Pomologist review, 2026-07-24 (~700-800 h)
Flowering Period & Overlap Window
Apricots flower before peach, plum and cherry, so bloom overlap and spring frost decide most outcomes. Self-fertility varies by origin: many Mediterranean-type cultivars set alone, while several North American releases need a compatible partner flowering at the same time.
Harcot flowers within the apricot Group 2–4 window. Partner-dependent cultivars need a compatible apricot whose flowers overlap in the same days.
Compatible Pollination Partners (22)
| Cultivar | Bloom Group | Overlap Type | Harvest | Primary Uses | Interactive Test |
|---|---|---|---|---|---|
| Group 3 | Full Overlap | Mid-Late | Fresh Eating, Canning, Drying | Test Cross | |
| Group 3 | Full Overlap | Late | Fresh Eating, Canning, Drying, Preserves | Test Cross | |
AC Harojoy | Group 3 | Full Overlap | Mid-Late | Fresh Eating, Canning, Freezing, Jam | Test Cross |
Canadian White | Group 3 | Full Overlap | Mid | Fresh Eating, Preserves | Test Cross |
| Group 3 | Full Overlap | Early | Fresh Eating, Freezing, Canning | Test Cross | |
Harogem | Group 3 | Full Overlap | Late | Fresh Eating, Canning, Freezing, Jam | Test Cross |
Nugget | Group 3 | Full Overlap | Mid | Fresh Eating, Drying | Test Cross |
| Group 3 | Full Overlap | Mid | Canning, Drying | Test Cross | |
| Group 3 | Full Overlap | Late | Fresh Eating, Canning, Preserves | Test Cross | |
Robada | Group 3 | Full Overlap | Mid | Fresh Eating, Drying | Test Cross |
Skaha | Group 3 | Full Overlap | Mid | Fresh Eating | Test Cross |
| Group 2 | Full Overlap | Mid | Fresh Eating, Canning, Drying, Preserves | Test Cross | |
| Group 4 | Full Overlap | Early-Mid | Fresh Eating, Canning, Drying, Baking | Test Cross | |
| Group 2 | Full Overlap | Early | Fresh Eating (Hybrid) | Test Cross | |
| Group 2 | Full Overlap | Early | Fresh Eating | Test Cross |
Incompatible Varieties & Exclusions (7)
These cultivars cannot serve as pollinizers for Harcot because their flowering does not overlap, their pollen is unsuitable, or they share the same incompatibility group.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldbar is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldrich is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Goldstrike is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Perfection is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Rival is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Sundrop is not one of them — that is a gap in the data, not evidence it is incompatible.
apricot incompatibility groups are only partly mapped, so only cultivars documented as reliable donors are offered. Tomcot is not one of them — that is a gap in the data, not evidence it is incompatible.
Grower Commentary: Harcot for Early Picking
Harcot is a diploid apricot with Group 3 bloom, viable pollen and no required partner in our record. It is also listed as a reliable donor within the self-incompatible group, and Goldrich and Perfection both name it as a partner. Its harvest is early here, so it can be the first apricot picked from a mixed block while sharing bloom time with the later Group 3 cultivars.
The record holds about 750 hours below 7.2°C, marked provisional. That is the highest chill estimate among the curated apricots, so verify it against local winter records before planting in a mild region. Higher chill need can delay bud break, which may help a little with frost, but it does not remove the risk of an early spring cold snap.
Plan for even crop load by thinning, and remove fruit early on heavy limbs. Confirm the rootstock and its drainage tolerance with the nursery. Because Harcot works as both a self-sufficient tree and a pollen source, it is a sensible choice where a grower wants fewer moving parts in the block.
Key Orchard Considerations for Harcot
A named partner for Goldrich and Perfection when flowering overlaps.
About 750 h is provisional; test it against local winters.
Useful first pick, but frost risk at bloom is unchanged.
Take Harcot from Planning to Planting
Use Kropigo's free browser tools to model your block density, tree counts, and pollinizer rows, then maintain permanent orchard records row by row.
Pollination Checker
Check Harcot against supported cultivars with compatible flowering and pollination data.
Commercial Block Planner
Calculate high-density tree spacing, row geometry, and establishment costs.
Block Record Keeping
Track pruning, chemical thinning, and harvest tallies block by block from the orchard.