Plan compatible pollination partners, compare varieties, and understand flowering compatibility for apples, pears, plums, blueberries, cherries, and more.
Step 1
Choose a fruit type
Start here. The helper uses different rules for apples, plums, blueberries, kiwis, and other fruit groups.
41 options available.
Type to narrow the list.
Selected fruit
Plum
21 tracked varieties
Plums are where pollination gets trickier. European plums usually need European partners, Japanese plums usually need Japanese partners, and hardy native or hybrid plums often need another hardy hybrid or native-type partner.
Keep partner trees within about 50 feet if you can. Plum bloom is early, so having a well-matched partner improves the odds in cool spring weather.
Step 2
Choose what you want to check
Current goal
Single variety
Choose one variety and Willowbottom will show the best pollination partners.
Step 3
Choose your variety
Choose one variety to see the strongest pollination partners.
21 options available.
Type to narrow the list.
Optional direct pair check.
20 options available.
Type to narrow the list.
Used to sort matches and flag climate cautions.
Pick a variety first, then scroll to Step 4 for ranked partners, warnings, and the optional pair check.
Step 4
See recommendations
Selected variety
Castleton
European plum
Mid bloom - mid bloom
Can fruit alone, but still benefits from a partnerPartner guidance included
Bloom timing
Bloom group 3 - mid bloom.
What to do
Plums are picky about pollination, so matching the right plum group is important.
About this variety
Castleton is sweet with a soft acidic lift, with firm, dense flesh and medium fruit. Choose it for drying, baking, prune-style preserves, and structured fresh eating, but skip it if you want a soft, dripping dessert plum or the earliest plum on the tree. It usually ripens around early to mid September.
This shows compatible pollinators. Choose based on flavor and harvest timing.
Usually grown in USDA zones 5-8.
Castleton can fruit alone, but it still benefits from a partner. Plums are picky about pollination, so matching the right plum group is important. It flowers in bloom group 3, which is mid bloom, which is worth knowing if you add a second tree later. Usually grown in USDA zones 5-8.
No single variety stands out as the obvious partner, but that is not a problem here: Damson, Green Gage, Italian Prune / Fellenberg, Mount Royal, and Stanley all bloom close enough to work. Pick whichever your nursery actually carries. Keep partner trees within about 50 feet if you can. Plum bloom is early, so having a well-matched partner improves the odds in cool spring weather.
One thing to keep in mind. Do not casually mix European, Japanese, and hardy hybrid plums. Plum group matters.
To put that into practice: at a minimum, plant two compatible plums from the same pollination group, such as European with European or Japanese with Japanese. Better still, use two or three plums in the same group with overlapping bloom so frost, poor weather, or shy bee activity does not ruin fruit set. If you only have room for one plum, choose a self-fruitful European type, but still plan for a second compatible plum later if yield matters.
Good backups
These are still useful choices when the very best option is not available at your nursery.
Damson
European plum
Mid bloom - mid bloom
Good backup
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
Why choose this?
Damson is tart-forward with sharp acidity, with firm, dense flesh and small fruit. In this group, this brings more acidity and bite than most of the others shown. Choose it for jam, jelly, chutney, and cooks who want strong plum intensity, but skip it if you want fresh snacking if you want a sweet, mellow dessert plum. It usually ripens around early to mid September, later than most of the others shown.
Green Gage
European plum
Mid bloom - mid bloom
Good backup
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
Why choose this?
Green Gage is very sweet with low acidity and real depth, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for premium fresh eating, jam, and growers who care most about dessert quality, but skip it if you want heavy hauling, long holding, or batches where you want large, easy-to-pit fruit. It usually ripens around mid to late August, earlier than most of the others shown.
Italian Prune / Fellenberg
European plum
Mid bloom - mid bloom
Good backup
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
Why choose this?
Italian Prune / Fellenberg is sweet with just enough acidity to stay lively, with firm, dense flesh and medium fruit. In this group, it is one of the firmest choices, so it handles baking, slicing, or holding its shape better. Choose it for drying, baking, preserving, and late-season kitchen plums, but skip it if you want a juicy early dessert plum for eating out of hand. It usually ripens around early to mid September, later than most of the others shown.
Mount Royal
European plum
Mid bloom - mid bloom
Good backup
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
Why choose this?
Mount Royal is sweet with a soft acidic lift, with juicy flesh with moderate firmness and medium fruit. In this group, this is one of the richest-tasting options. Choose it for fresh eating, preserves, and cold-climate European plum plantings, but skip it if you want oversized show fruit or very soft dessert flesh. It usually ripens around late August to early September, in the middle of this group.
Stanley
European plum
Mid bloom - mid bloom
Good backup
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
Why choose this?
Stanley is sweet with just enough acidity to stay lively, with firm, dense flesh and large fruit. In this group, it is one of the firmest choices, so it handles baking, slicing, or holding its shape better. Choose it for drying, canning, baking, and dependable all-purpose home harvests, but skip it if you want growers chasing the richest dessert-style sweetness or a very early crop. It usually ripens around early to mid September, later than most of the others shown.
Avoid
These are poor bets to rely on for this variety.
Burgundy
Japanese plum
Mid bloom - mid bloom
Avoid
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
These are not in the same pollination group.
Why choose this?
Burgundy is sweet with a soft acidic lift, with soft, juicy flesh and medium fruit. Choose it for fresh eating and a richer Japanese-plum style, but skip it if you want firm canning slices, long holding, or sharply tart preserves. It usually ripens around mid to late August, in the middle of this group.
Elephant Heart
Japanese plum
Mid bloom - mid bloom
Avoid
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
These are not in the same pollination group.
Why choose this?
Elephant Heart is sweet with just enough acidity to stay lively, with soft, juicy flesh and very large fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating, market-style show fruit, and late-summer dessert platters, but skip it if you want small-batch preserving or firm fruit for rough handling. It usually ripens around late August to early September, later than most of the others shown.
Santa Rosa
Japanese plum
Mid bloom - mid bloom
Avoid
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
These are not in the same pollination group.
Why choose this?
Santa Rosa is lightly sweet with a definite tart edge, with juicy flesh with moderate firmness and large fruit. In this group, this is one of the richest-tasting options. Choose it for fresh eating, baking, preserves, and all-purpose Japanese plum harvests, but skip it if you want the very earliest crop or a dry-fleshed prune plum. It usually ripens around early to mid August, in the middle of this group.
Satsuma
Japanese plum
Mid bloom - mid bloom
Avoid
Blooms in the same window. Zone fit is unknown or not a major tie-breaker here.
Zone unknownSame bloom window
These are not in the same pollination group.
Why choose this?
Satsuma is lightly sweet with a definite tart edge, with soft, juicy flesh and medium fruit. In this group, this is one of the richest-tasting options. Choose it for jam, sauce, fresh eating, and darker flavor, but skip it if you want very mild dessert-plum eating or long, firm countertop holding. It usually ripens around mid to late August, in the middle of this group.
Alderman
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Alderman is sweet with just enough acidity to stay lively, with juicy flesh with moderate firmness and large fruit. In this group, it is one of the firmest choices, so it handles baking, slicing, or holding its shape better. Choose it for fresh eating, tarts, and batches where you want big, handsome slicing fruit, but skip it if you want quick early harvests, heavy jam work, or growers who prefer a softer dark-fleshed plum. It usually ripens around late August, later than most of the others shown.
Beauty
Japanese plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Beauty is lightly sweet with a definite tart edge, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating and getting the plum season started early, but skip it if you want a firm preserving plum or strong winter hardiness. It usually ripens around mid to late July, earlier than most of the others shown.
BlackIce
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
BlackIce is very sweet with low acidity and real depth, with soft, juicy flesh and large fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating, sauce, and cold-climate dessert quality early, but skip it if you want long handling, firm baking slices, or the latest plum season possible. It usually ripens around early August, earlier than most of the others shown.
Hollywood
Japanese plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Hollywood is lightly sweet with a definite tart edge, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating, jam, and growers who like red-fleshed novelty fruit, but skip it if you want firm slicing, long storage, or a very mild sweet plum. It usually ripens around mid to late August, in the middle of this group.
La Crescent
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
La Crescent is sweet with just enough acidity to stay lively, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating, preserves, and bright flavor in a hardy plum, but skip it if you want very large fruit, long shelf life, or dense prune-style kitchen use. It usually ripens around mid August, in the middle of this group.
Methley
Japanese plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Methley is very sweet with low acidity, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating and early-season backyard snacking, but skip it if you want long keeping, firm baking slices, or a more complex tart-sweet plum. It usually ripens around mid to late July, earlier than most of the others shown.
Pembina
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Pembina is sweet with just enough acidity to stay lively, with soft, juicy flesh and large fruit. Choose it for fresh eating, cooking, preserves, and broad home-orchard use, but skip it if you want the earliest plum slot or a very firm, dry-fleshed prune type. It usually ripens around late August, in the middle of this group.
Shiro
Japanese plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Shiro is sweet with just enough acidity to stay lively, with soft, juicy flesh and large fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating and easygoing backyard dessert plums, but skip it if you want sharp acidity, dark skin, or high-intensity preserving flavor. It usually ripens around late July to early August, in the middle of this group.
Superior
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Superior is tart-forward with sharp acidity, with soft, juicy flesh and large fruit. In this group, this brings more acidity and bite than most of the others shown. Choose it for fresh eating, canning, and hardy-climate dessert plum harvests, but skip it if you want the richest dark-fruit character or very late European-plum timing. It usually ripens around mid to late August, in the middle of this group.
Toka
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Toka is very sweet with low acidity, with soft, juicy flesh and medium fruit. In this group, it is one of the softer, juicier choices, so it leans more toward fresh eating than long holding. Choose it for fresh eating and as a standout pollen partner in hardy plum plantings, but skip it if you want drying, firm baking slices, or a more restrained flavor profile. It usually ripens around mid to late August, in the middle of this group.
Waneta
Hardy hybrid plum
Early bloom - early bloom
Avoid
Blooms close enough to overlap in many home plantings. Zone fit is unknown or not a major tie-breaker here.
Zone unknownNearby bloom window
These are not in the same pollination group.
Why choose this?
Waneta is lightly sweet with a definite tart edge, with juicy flesh with moderate firmness and medium fruit. In this group, it is one of the firmest choices, so it handles baking, slicing, or holding its shape better. Choose it for fresh eating, preserves, and colder sites where you still want solid dessert fruit, but skip it if you want growers who only want ultra-soft dessert texture or very early ripening. It usually ripens around late August, in the middle of this group.
Minimum planting guidance
Use the minimum, ideal, and fallback plan to size the planting to your space and goals.
Minimum setup
Plant two compatible plums from the same pollination group, such as European with European or Japanese with Japanese.
Ideal setup
Use two or three plums in the same group with overlapping bloom so frost, poor weather, or shy bee activity does not ruin fruit set.
Fallback plan
If you only have room for one plum, choose a self-fruitful European type, but still plan for a second compatible plum later if yield matters.
Important notes
These notes keep the key cautions and practical details easy to scan.
Warnings
Do not casually mix European, Japanese, and hardy hybrid plums. Plum group matters.
Helpful notes
Keep partner trees within about 50 feet if you can. Plum bloom is early, so having a well-matched partner improves the odds in cool spring weather.