>>1234563>whenI bought a pack of walnuts in the supermarket around January. With one of them, I wanted to see if it germinates and it did.
After I managed to "gently" crack the shell and peel out the core intact, I dumped it in a glas of water. After two days it sank to the bottom and gained a bit in size. Then I simply put it a pot with earth and then it grew by itself.
I think it's canadian walnut... Sadly it shows signs of beeing diseased so I'll watch it for a bit more and if it gets worse I'll trash it.