Apple
Gravenstein Pollination Guide
Gravenstein is a triploid variety — it needs two other non-triploid varieties nearby to produce fruit.
Gravenstein has three sets of chromosomes, which makes its pollen sterile. It can't pollinate other trees, and it can't pollinate itself. You need two other non-triploid varieties nearby: one to pollinate Gravenstein, and a second to pollinate the first (since Gravenstein can't return the favor). This means a minimum of three trees in your orchard.
Gravenstein Quick Facts
Chill Hours
700 hours
Hardiness Zones
4, 5, 6, 7, 8
Harvest
August
Bloom Time
early to early-mid season
Pollination Note
Triploid — produces sterile pollen, needs two other non-triploid varieties nearby
Planning Your Orchard
Since Gravenstein is triploid, plan for at least three apple trees total. Choose two non-triploid varieties from the same or adjacent pollination groups. Good universal pollinators include Golden Delicious (partially self-fertile, group 4) and any crabapple with overlapping bloom time. Space trees 15–25 feet apart for standard rootstock, or 8–12 feet for dwarf.
Keep a record of every tree you plant — variety, rootstock, location.
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Can I Grow Gravenstein?
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About Gravenstein
Gravenstein is the heirloom apple that Sonoma County built its reputation on — intensely aromatic with a perfect sweet-tart balance that makes the best applesauce and pies. It's a triploid that produces no viable pollen.
Growing Challenges
Triploid — needs two other apple varieties for pollination; biennial bearing; bruises easily.
Frequently Asked Questions
What is the best pollinator for Gravenstein?
The best pollinators for Gravenstein are varieties in pollination group 2 or adjacent groups that bloom at the same time. Top choices include Arkansas Black, Braeburn, Cortland. Golden Delicious is also an excellent universal pollinator for most apple varieties.
Can a crabapple pollinate Gravenstein?
Yes, crabapples are excellent pollinators for Gravenstein as long as their bloom times overlap. Ornamental crabapples produce abundant pollen and are a great option if you want a pollinator that also adds spring beauty to your landscape.
Why does Gravenstein need two pollinators instead of one?
Gravenstein is a triploid variety with sterile pollen — it can receive pollen but can't donate it. You need two other non-triploid apple varieties: one to pollinate Gravenstein, and one to pollinate the first pollinator (since Gravenstein can't do it). All three trees should be from the same or adjacent pollination groups.
How close does a pollinator need to be to Gravenstein?
For reliable pollination, plant the partner variety within 50–100 feet of Gravenstein. Bees are the primary pollinators and typically work within this range. In practice, a tree in your yard or even a neighbor's nearby tree can work. The closer the trees, the more consistent the fruit set.
Can I grow just one Gravenstein tree?
No — Gravenstein requires a compatible pollination partner to produce fruit. Without a second tree of a different variety nearby, it will bloom but won't set fruit. As a triploid, it actually needs two other varieties.
Other Apple Varieties
Anna
200 chill hrs · Zones 8–10
Arkansas Black
800 chill hrs · Zones 5–9
Braeburn
700 chill hrs · Zones 5–9
Cortland
800 chill hrs · Zones 3–7
Cosmic Crisp
800 chill hrs · Zones 5–8
Dorsett Golden
100 chill hrs · Zones 8–10
Empire
800 chill hrs · Zones 4–7
Fuji
400 chill hrs · Zones 5–9
Gala
500 chill hrs · Zones 4–9
Golden Delicious
700 chill hrs · Zones 4–8
Granny Smith
400 chill hrs · Zones 5–9
Honeycrisp
800 chill hrs · Zones 3–8
Jonagold
700 chill hrs · Zones 5–8
Liberty
800 chill hrs · Zones 4–8
McIntosh
900 chill hrs · Zones 3–7
Pink Lady (Cripps)
400 chill hrs · Zones 5–9
Red Delicious
700 chill hrs · Zones 4–8
Winesap
800 chill hrs · Zones 5–8
Related Tools
Pollination Checker
Interactive tool to find compatible pollination partners for any fruit tree.
Can I Grow Gravenstein?
Check if your zip code has enough chill hours for this variety.
Chill Hour Checker
Validate chill hours for any fruit tree variety by zip code.
Frost Date Finder
Find your first and last frost dates to plan bloom protection.
Pollination data compiled from university extension services, the Royal Horticultural Society (RHS) pollination group charts, RosBREED cherry S-allele research, and nursery compatibility guides. Pollination compatibility can vary by region and microclimate. For best results, consult your local extension office.