Hi, I am looking for more options for long lived kale cultivars. I am in Sydney Australia and cannot find any source to obtain tree kale here. I have had great success with cavolo nero / dinosaur kale where it is now into its third year and still cropping well. I had planted red russian kale at the same time but those plants are now long gone. I also had a crop of chinese broccoli / gai lan but found that that was an annual only in my garden also. I am thinking I might just put in more cavolo nero but thought I'd try asking here if anyone has any other suggestions. The key features I am looking for is kale which is good to eat and can get a at least a few years out of it. Thanks in advance.