Rome Beauty Apple
Pollination & Compatibility Guide
Rome Beauty apple pollination guide, late bloom group 5 timing, and compatible partners. Essential guide for frost evasion and baking apple management.
Rome Beauty is Self-Sterile (Needs 1 Partner)
Very late blooming (Group 5), escaping late spring frosts that damage earlier cultivars. Requires late-flowering partners. Rome Beauty needs at least one compatible pollinizer from bloom group 4–6 to set a reliable crop.
- Chromosome Ploidy
- Diploid (2n)
- Required Companions
- 1 Diploid Partner
- Bloom Group
- Group 5 (Late-Spring)
- Harvest Timing
- Late (+10d from Golden Delicious)
Flowering Period & Overlap Window
Apple flowering periods are classified into numbered bloom groups (1 through 6). A variety reliably cross-pollinates with cultivars in its own group or adjacent groups (±1 group).
Any compatible diploid apple flowering within Group 4 to 6 provides matching blossom overlap.
Compatible Pollination Partners (30)
| Cultivar | Bloom Group | Overlap Type | Harvest | Primary Uses | Interactive Test |
|---|---|---|---|---|---|
Northern Spy | Group 5 | Full Overlap | Late ±5d delta | All-Purpose, Storage | Test Cross |
| Group 5 | Full Overlap | Late ±10d delta | Cider | Test Cross | |
| Group 5 | Full Overlap | Late ±10d delta | Cider | Test Cross | |
| Group 5 | Full Overlap | Late ±10d delta | Cider | Test Cross | |
| Group 4 | Full Overlap | Late Concurrent (±0d) | All-Purpose | Test Cross | |
Newtown Pippin | Group 4 | Full Overlap | Late Concurrent (±0d) | All-Purpose, Storage | Test Cross |
White Winter Pearmain | Group 4 | Full Overlap | Late Concurrent (±0d) | All-Purpose, Storage | Test Cross |
| Group 4 | Full Overlap | Late Concurrent (±0d) | All-Purpose, Cider | Test Cross | |
York Imperial | Group 4 | Full Overlap | Late Concurrent (±0d) | All-Purpose, Storage | Test Cross |
Beni Shogun | Group 4 | Full Overlap | Mid ±5d delta | Fresh Eating | Test Cross |
| Group 4 | Full Overlap | Late ±5d delta | Fresh Eating | Test Cross | |
| Group 4 | Full Overlap | Late ±5d delta | Fresh Eating | Test Cross | |
| Group 4 | Full Overlap | Late ±5d delta | Fresh Eating | Test Cross | |
Tydeman's Late Orange | Group 4 | Full Overlap | Late ±5d delta | Fresh Eating | Test Cross |
| Group 4 | Full Overlap | Late ±10d delta | All-Purpose | Test Cross |
Incompatible Varieties & Exclusions (6)
These varieties overlap in flowering time with Rome Beauty but cannot fertilise it due to sterile pollen (triploids) or shared genetic incompatibility alleles.
Arkansas Black produces no viable pollen, so it cannot serve as a pollinizer.
Ashmead's Kernel produces no viable pollen, so it cannot serve as a pollinizer.
Jonagold produces no viable pollen, so it cannot serve as a pollinizer.
Orleans Reinette produces no viable pollen, so it cannot serve as a pollinizer.
Stayman Winesap produces no viable pollen, so it cannot serve as a pollinizer.
Zabergau Reinette produces no viable pollen, so it cannot serve as a pollinizer.
Grower Commentary: Rome Beauty Late Bloom, Frost Evasion & Baking Texture
Rome Beauty (along with its solid red bud sports such as Red Rome) is a diploid, self-sterile cultivar discovered as a chance seedling in Rome Township, Ohio (c. 1817). It is distinguished pomologically by its exceptionally late flowering window in bloom group 5 (late spring).
Frost evasion advantage: Because it opens its blossoms well after most commercial apple varieties have completed petal fall, Rome Beauty routinely escapes late spring radiation frosts that destroy earlier crops. However, this late flowering requires pairing exclusively with other late-blooming diploids (such as Northern Spy, Golden Delicious, GoldRush, or late-blooming crabapples) to achieve adequate floral overlap.
Baking and storage qualities: Renowned as the quintessential commercial baking apple, Rome Beauty features dense, fine-grained flesh that retains its shape and moisture under heat. It stores exceptionally well in standard cold refrigeration for 5–7 months.
Tree habit and disease: Displays an early-bearing, compact spur habit of moderate vigor. It is notably susceptible to cedar apple rust (Gymnosporangium juniperi-virginianae) and powdery mildew, requiring site selection away from eastern red cedars and proactive fungal protection.
Key Orchard Considerations for Rome Beauty
Must be interplanted with late-flowering companions (groups 4–5) to ensure viable pollen during its delayed blossom window.
Outstanding variety for planting in low-lying frost pockets where early-blooming cultivars suffer frequent crop loss.
Monitor for cedar apple rust galls on nearby junipers and apply targeted preventative sterol-inhibitor sprays during spring spore release.
Take Rome Beauty 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 Rome Beauty 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.