I prefer direct seeding in my garden, I refrigerate them until my garden quits producing. Then direct seed and cover with hardware cloth or expanded metal, then next spring once they are up @ 4" I transplant into 1 gal pots or grow bags and get them through the summer. I just started planting my new seedling from last years acorns yesterday. I have RM 18's but im too impatient to use those and not that good at watering every day. With Chestnuts and Red oak I refrigerate and wait until the produce a radicle (next spring) then pot them.