The Tropical Fruit Forum

I remember that video lol. You won’t find out if you don’t try! I wonder if you can artificially select for cold hardy seeds that survive the cold temps and maybe find a cold hardy mutant…

I had a freshly up potted 7g in full sun. Seemed to be pretty happy before I sold it.

Our day time temps are up around 37C (98F) down to 20C (68F) over night. Humidity is running at 40 to 50%.  I have a Rollinia next to the Soursop, same age that is also flowering and that is producing pollen but likewise not setting fruit. 🤷‍♂️

While some plinias can take a hard frost,
I wouldn't try it in 7b.
No way I could do that here.
You would have to protect it...
The problem is that trees can take those low temps once or twice and be fine with some damage, but the problem is prolonged cold temps.
Just further stresses the tree and doesn't work.
That's why I can't grow coconuts in my greenhouse.
But doesn't hurt to give a try.

I am trying to do vaneer graft on them. Those grafts that I last checked were still green. But who knows how longer they’re going to last. Experience with Red Himalayan and Aussie Green mulberry scions show that even after a month of green wood doesn’t necessarily translate to an automatic take. Grafting can be quite frustrating at time.

By the way, anyone who wants to graft seedless che, try grafting them onto osage orange seedlings. Mine take sooo easily and I still considered myself an amateur at grafting. If I can graft them as an amateur grafter, you probably can succeed as well...