I have a bunch of cheena seedlings growing. My jackfruit and cheena grow like weeds, my champedaks died, kwai muk struggling, marang doing okay. Not sure how a PA greenhouse compares to southern CA though.
I keep hearing mixed reviews, that cheena is great or that it is worse than jackfruit or champedak. I'm trying to decide if I should plant one in ground or instead plant another artocarpus. And also I hear that cheena and jackedak are different hybrids.
If you decide you want to try cheena I'll sell you one for much cheaper, PM me. I don't believe there are any shipping restrictions from PA->CA for artocarpus.

Hi Brian,
Thank you for sharing your experience!
Yes, i am interested to purchase some cheena seedling and kwai muk seedling too.
I read in the older post here that Kwai Muk is doing good here in So-Cal and can bear fruit.
Do you know what variety is your Kwai Muk seedling from?
Top Tropicals claims that their Kwai Muk is Jesses de La Creme variety which is very sweet and productive.
They also states that their Jackedak is from a superior a seedling from Cheena, which happens to bear fruit at age 3 and super productive.
I want to check if there is no restriction to ship Atocarpus from your place to CA, because recently CA is going crazy to confiscate not only plants but seeds too! I purchased some annona seeds from Mexico and Puerto Rico, and they were all confiscated.
Kevin Jones, from Alabama, is no longer ship plant to Ca due to it's crazy restriction. It just started on 2020 after Covid, because before that, I purchased plants and seeds from Mexico, Puerto Ricco, even Thailand, and all arrived safely. I think somehow the CA officials have too much time in their hands since Covid, because they cannot go out visiting people's orchards, so they spend their time to confiscate and destroy our mail order stuff.