The experiment is temporarily over, all of my remaining kava plants have succumbed to what is hopefully my last lesson in figuring out how to keep kava alive in SoCal. Surprisingly, it was not the winter but rather the heat that took even my largest (still small), healthiest and hardiest plant. Summer heat waves would bring the greenhouse temperatures up to 108-111 degrees F, while the outside air was in the 80s-90s. While I was stuck at work, the plants were sweltering for hours in 100 degree heat. Even with installing a ventilation fan, keeping the door open, putting reflectix on the roof and adding an automated water mister, none of it was enough to reduce the heat. I would have been better off putting them in the shade outside...and that's what I'll do for the summers next time I try this. Spring 2018: Early Summer 2019: Midsummer 2019: @Alia When it first died back, it tried to sprout a little shoot, but that also dried up after about a week, was that the last attempt to come back that it will make? The original cutting on the (dead-ish) plants, where they meet the soil, are still green...could they still sprout again? Is there a way to encourage it to grow, like making a little cut on it with a blade? It's been like this for about a month or 2 two now. So anyway, the lesson is; summer is less manageable than winter for these plants. (In CA) Despite being tropical plants, high temperatures my be as much, if not more damaging than low temps.