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I am experimenting to grow low-chill stone fruits namely peaches var."Florida Sun" and plums var. "Black Amber" into Zone 13 tropics. I know that they aren't recommended for Zone 13 or hot tropics. But I wonder what will be outcome of such an experiment? Will the plants simply die due to tropic heats? Will they be less productive? Will they live for a cycle and then fail to budbreak? Will they need Hydrogen Cyanamide (Dormex) or Paclobutrazol?

P.s. I am not planning to grow them in air conditioned microclimate as also not aiming for a marketable produce. Has anyone conducted such an experiment and can enlighten me about the same?

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  • I appreciate your points on outcome. Much Thanks! ✨Also, there's not plenty of literature available on google or even google scholar, being frowned by reddit communities and lack of articles is what brought me here. @RohitGupta
    – Jayparth
    Dec 24, 2023 at 20:34
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    Low-chill is not "no chill" - without adequate time at temperature, they will never think winter has come, and therefore won't flower in spring, since they won't know when that is.
    – Ecnerwal
    Dec 27, 2023 at 2:01
  • @Ecnerwal I appreciate your inputs and I am aware of difference among low-chill and no chill. However, my premise of understanding is "why or why won't they flower?". After all, Chill Hours isn't an exact science, it is a mere possibility to consider to overlook what plants have better chance to fruit in certain conditions.
    – Jayparth
    Dec 29, 2023 at 10:52
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    Not exactly the same, but more-or-less on topic - I have a Cherry tree of some description in my garden - and I live in Zone 9B (I believe). The tree flowers and gets a few tiny berries which drop off. It produced more berries this year then normal - possibly because we had a very cool, wet summer - but nothing that came close to fully fruiting. As a reference, I have peaches and plum trees which have no problem fruiting.
    – davidgo
    Jan 1 at 4:04
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    I thus expect you would get lots of leaves but no flowering - let alone fruit set - I don't think you really get a winter in zone 13.
    – davidgo
    Jan 1 at 4:08

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