Just sharing a seed-grown alder that got its first shallow pot, I think it looks cute. Moss was self-growing on top of previous pot, hopefully they'll move on together.

It looks so lovely!

Is there anything special required to sprout the alder seeds? I tried years ago, but maybe the cones were simply too old when I got them.

Not really, we gather loads and loads of seeds from the cones (best while it's still snowy, March-April) by collecting branches that break off on their own in windy weather and drying the cones at home, and just scatter seeds in pots; sometimes something sprouts. Sometimes they just sprout from other outdoor pots if there are alder trees around.

Thank you. I'll try again!