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Where I live the temp can dips down to 32 degrees. Wax Jambu will get damage below 42 degrees and die. I killed two I planted outside in the ground a few years ago. Wax jambu loves full sunshine and lots of water. Fertilize it when the weather get hot. If you don’t have a greenhouse, you can keep in the garage or inside the house until the weather get better. Wax Jambu will grow very quick. You don’t need to keep it humid but if the your weather has dry hot wind blowing then misting once a while can prevent leaves from drying up. Fruits can sweeten when exposed to lots sunshine. Good luck.
I grow it in San Diego outside with little care, just water and very occasional fertilizer. They've seen temperatures in the high 30s briefly at night and were fine. They don't need humidity, nor do they need a ton of direct sunshine (a tree on the north side of my house, half in bright shade, produces fruit that are plenty sweet). But in Arizona you will likely need to protect them during winter nights.
I'm in Central Florida and we usually get down to the 40s in the winter. This last winter has luckily been mild so we only had a few days that low, and my Wax Jambu had no issues at all. It is the variety "Stinark Red #5" and is the only variety that will grow well in this climate. Mine is only 3 feet tall and it's already producing less than a year after I got it. I hope the fruits taste good! Good luck with yours, growing it in pots my eventually be hard because they do need room to grow. Watch Seamus O Leary and Jake Mace's videos on how to protect tropicals from frost, it's very helpful!
Thanks. Where do you guys get your shade cloth?
I gave 2 planted in scottsdale. Small plants. One has gone through 2 winters, one through last unprotected. They are a bit shaded and have not grown much, but both are healthy.
Mine was fine in a pot when it got down to 34F (1c). I put it in ground last Feb with shade cloth on all side but not top, and it is doing fine. Our 8.5+ ph soil however is causing iron deficiency.
Are you able to amend with ironite?Quote from: shpaz on May 23, 2020, 10:42:41 AMMine was fine in a pot when it got down to 34F (1c). I put it in ground last Feb with shade cloth on all side but not top, and it is doing fine. Our 8.5+ ph soil however is causing iron deficiency.