Aldrich
Blooms with Nonpareil and considered an excellent Nonpareil pollinizer; harvest 14 days after Nonpareil; nut characteristics and harvest time similar to Merced; shell is well-sealed; 62% crack out; tree is upright–similar to Mission in growth habit.
Butte
Blooms 4 days after Nonpareil; harvest 18 days after Nonpareil; considered the most productive almond variety; small to medium-small kernel with semi-hard well-sealed shell; easy to knock; vigorous, spreading tree similar to Ne Plus.
Carmel
Blooms with Nonpareil; harvest 15 days after Nonpareil; heavy and precocious producer; kernel is medium-sized and elongated; well-sealed, soft shell; tree is medium-sized but more upright than Nonpareil.
Fritz
Blooms with Nonpareil; one of the latest maturing varieties–40 days after Nonpareil–and among the most consistently productive pollinizers for Nonpareil; medium-small, ovate kernel with semi-hard shell; medium-sized, upright/spreading tree.
Livingston
Blooms 5 days after Nonpareil; harvest 8 days after Nonpareil; medium size kernel; well-sealed paper shell nut; very productive, upright, medium to large size tree.
Mission
(Texas) Blooms 6 days after Nonpareil; harvest 28 days after Nonpareil; kernel is medium-small and plump; very well-sealed hard shell; consistently productive; susceptible to injury by salt in soil or irrigation water; tree is large and upright.
Monterey
Blooms 2 days after Nonpareil; harvest 26 days after Nonpareil; large, elongated kernel with high percentage of doubles; well-sealed soft shell; heavy and precocious producer; tree is medium-sized and somewhat sprawling.
Ne Plus
Blooms 5 days before Nonpareil; harvests 14 days after Nonpareil. Early bloom is susceptible to frost. The kernel is large. Shell is soft and well sealed. Tree has a spreading, slightly willowy growth habit.
Nonpareil
Blooms approx. 3rd week of February; harvest at end of August; medium-sized kernel with excellent quality and flavor – commands top position in marketplace; paper shell is often poorly-sealed; large, upright/spreading tree.
Padre
Blooms 5 days after Nonpareil; harvest 23 days after Nonpareil; hard shell and medium-small kernel similar to Mission though slightly smaller; good producer with potential for high yields; upright tree is similar to Mission in growth habit.
Peerless
Due to early bloom, 5 days before Nonpareil, Peerless may be subject to frost damage; harvests 17days after Nonpareil; medium-size nut with an attractive, very hard shell. Tree is moderately upright and grows to medium size. This nut has been used primarily for the in-shell market.
Price
Blooms with Nonpareil; harvest 4 days after Nonpareil; medium-small, plump kernel and paper shell; tendency to alternate bearing and moderately high percentage of double kernels in some years; vigorous upright/spreading tree.
Ruby
Blooms 8 days after Nonpareil; harvest 30 days after Nonpareil; medium-small, plump kernel in semi hard, well-sealed shell; productive, moderately vigorous tree with upright growth habit.
Sonora
Blooms 3 days before Nonpareil, tendency to alternate bloom, considered less frost sensitive than other early blooming varieties; harvest 7 days after Nonpareil; medium-sized, elongated, light-colored kernel; paper shell is often poorly-sealed; very high yields noted in regional trials; medium-sized tree with slightly spreading growth habit.
Winters (pp#13286)
A new variety from the University of California (#13286). Blooms with Nonpareil and Carmel; harvests 3 to 4 weeks after Nonpareil. The kernel qualities are good as compared to both Nonpareil and Carmel. Tree is upright and vigorous.
Wood Colony
Blooms 1 to 2 days after Nonpareil; harvest 10 days after Nonpareil; kernel is medium sized and elongated; well-sealed soft shell; smaller tree than Carmel with similar, spreading growth habit.
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Tested Varieties that Show Cross-Compatibility |
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Varieties which have been tested for pollen incompatibility and for which no separate incompatibility group has been identified. For each variety listed on the left, the successful test crosses (cross-compatible varieties) are given to the right. |
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Variety |
Varieties Tested * |
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Butte |
Nonpareil, Mission, Carrion, Fritz, Merced, Norman, Mono, Padre, Tokyo, Thompson, Aldrich, Wood Colony |
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Fritz |
Butte, Carrion, Merced, Harvey, Thompson, Ripon, Nonpareil, NePlus Ultra, Jeffries, Sonora, Wood Colony, Monterey Carmel, Aldrich |
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Padre |
Nonpareil, Mission, Thompson, Fritz, Carrion, Ruby, Butte, Price |
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Ruby |
Nonpareil, Mission, Thompson, Ripon, Merced, Padre, Price, Monterey |
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Aldrich |
Butte, Carmel, Sonora, Monterey, Sauret #2, Nonpareil |
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* If a variety in a known incompatible group is listed as compatible, then any other variety in that group should also be compatible. |
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Compatibility with Marianna 26-24 Rootstock |
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The plum rootstock, Marianna 26-24, is used where oak root fungus is a problem and on occasion where soils are too heavy for almond or peach rootstock species. There is a considerable difference in the degree compatibility of almond varieties on this rootstock and this affects productivity. |
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Degree of compatibility with Marianna 26-24 Rootstock. |
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Compatible |
Intermediate* |
Incompatible |
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Aldrich |
Butte |
Davey |
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Carmel |
Wood Colony |
Dottie Won |
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Fritz |
IXL |
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Jordanolo |
Jefferies |
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LeGrand |
Kapareil |
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Merced |
Livingston |
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Mission |
Milo |
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NePlus Ultra |
Mono |
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Norman |
Nonpareil |
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Padre |
Solano |
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Peerless |
Monterey |
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Price |
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Ripon |
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Ruby |
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Sonora |
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Thompson |
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* These appear to vary in their incompatibility and until better information is available are not generally recommended. Acknowledgment is given to the University of California at Davis and the Almond Research Board for the pollination information contained herein. |
