My stella died last year- I tried to move it too late in the spring, and the subsequent long hot summer did it in. I wasn't too pleased with the tree because of low fruit production. Now I'm looking to replace it with an earlier bearing tree. Lapin has been suggested. Are other possibilities about? The Stella was also self fertile, so I'd like to know about other coastal varieties that are self-fertile and those that require pollinators and what those pollinators are, as well as flowering time compatibility. I have a Nanking cherry.