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Sweet Cherry variety

Sweetheart

The short answer

Sweetheart grows in USDA zones 5–9[1]. It is self-fertile[2].

Growing facts

Sweetheart growing facts
Chill requirementNot published for this variety
HardinessUSDA zones 5–9[1] (nursery figure)
PollinationSelf-fertile, bloom group 2[2]
Harvest windowJuly–August[1]
Years to bearing5–7 years (typical for sweet cherries)[3]
Sweetheart sweet cherrySpecies illustration — no historical watercolor exists for this cultivar

Notes

  • Self-pollinating; blooms early-to-early-mid and can serve as a pollenizer for cherries of overlapping bloom.[2]
  • Late-ripening self-fruitful cultivar; ripens about 5-7 days after Lapins, extending the cherry season.[1]
  • Very susceptible to bacterial canker (Pseudomonas syringae).[4]

A year with your Sweetheart

When the work happens for a sweet cherry in USDA zone 7, anchored to typical frost dates.

Months for pruning, thinning, spray-timing windows, and harvest for Sweet Cherry in zone 7
TaskJFMAMJJASOND
Prune——————————
Spray timing——————
Harvest—————————
Care——————————

See the full month-by-month sweet cherry calendar for zone 7 →

Can I grow Sweetheart where I live?

Check the verdict for a few regions, or your exact ZIP:

Growing a Sweetheart? Get its care calendar for your exact ZIP code, with email reminders.

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Questions

What hardiness zones suit Sweetheart?
Sweetheart grows in USDA zones 5–9.
Is Sweetheart self-pollinating?
Sweetheart is self-fertile, though a pollination partner can improve cropping.

Sources

  1. [1] Dave Wilson Nursery. Cherries — DWN Variety Finder product list — accessed July 2026
  2. [2] Washington State University Tree Fruit. Pollination – Sweet Cherry (WSU Tree Fruit) — accessed July 2026
  3. [3] University of Maine Cooperative Extension. Growing Fruit Trees in Maine — Lack of Fruitfulness — accessed July 2026
  4. [4] Washington State University Tree Fruit. Bacterial canker in Washington sweet cherries (WSU Tree Fruit) — accessed July 2026