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Lon, I have not heard of Sorbus-Crataegus hybrids before. I checked the ARS-Grin database and found a number of intergeneric hybrids of Sorbus with other rose family edibles… X Sorbocrataegus = Mountain Ash x Hawthorn X Sorbaronia = Mountain Ash x Aronia X Sorbomespilus = Mountain Ash x Medlar X Sorbopyrus = Mountain Ash x Pear At least one of these specimens is available for distribution from the national repository system.
What do you know of these hybrids (who produced them, where did they originate)? Do any of them have culinary potential? -Mark Lee, Seattle
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This may help explain something that happened to me
one time. I had a few cuttings of a Sorbus-Crataegus hybrid I stored in
the refrigerator and forgot. When spring came, I found them and they had
produced a ring of callus. I treated them with Dip -n- Gro liquid rooting
hormone and planted them. I only had a couple, but they rooted and grew.
The person I got them from said that they had never been able to root
cuttings previously, so the method may be something to try on other things
besides Prunus.
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