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Pear variety

Warren

The short answer

Warren requires 600 chill hours[1] and grows in USDA zones 5–9[2]. It is self-fertile[1].

Growing facts

Warren growing facts
Chill requirement600 chill hours[1] (nursery figure)
HardinessUSDA zones 5–9[2] (nursery figure)
PollinationSelf-fertile, bloom group 3[1]
Harvest windowNot published for this variety
Years to bearing4–6 years (typical for pears)[3]
Warren pearSpecies illustration — no historical watercolor exists for this cultivar

Notes

  • Listed as self-fruitful by the nursery.[1]
  • Pollen-sterile (PS) in the nursery pollination chart, so not relied upon as a pollen donor for other pears.[4]

A year with your Warren

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

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

See the full month-by-month pear calendar for zone 7 →

Can I grow Warren where I live?

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

Growing a Warren? Get its care calendar for your exact ZIP code, starting with this month’s tasks for one tree, free.

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Questions

How many chill hours does Warren need?
Warren needs 600 chill hours.
What hardiness zones suit Warren?
Warren grows in USDA zones 5–9.
Is Warren self-pollinating?
Warren is self-fertile, though a pollination partner can improve cropping.

Sources

  1. [1] Dave Wilson Nursery. European pears — DWN Variety Finder product list — accessed July 2026
  2. [2] Dave Wilson Nursery. Warren — variety specifications — accessed October 2026
  3. [3] Iowa State University Extension and Outreach. How soon will a newly planted fruit tree begin to bear fruit? (Yard and Garden FAQ) — accessed July 2026
  4. [4] Burnt Ridge Nursery. European pear pollination chart — accessed July 2026