First time for me growing mulberry (morus alba tatarica for future rootstock) from seed, and I could use some advice.
I stratified my seed over the winter in the fridge and saw 0 germination until I planted them in standard veggie flats at the beginning of June. Seed must need temps above 60-70 degrees F to germ, once the warm weather hit the flats got crowded fast! I probably over sowed, there’s hundreds of plantlets per container and I am scratching my head over what step to take next.
I think I will try a couple different approaches with the three flats of seedlings, but am open to suggestions…
1- Leave them in the flat for one season, bring into the cellar for the winter (or leave outside in protected location?) then transplant into the field next spring where they can grow another year before grafting.
2- Prick them out and transplant into inground bed during a wet overcast spell.
3- Prick them out and plant them individually in tree pots.
4- Prick them out and plant 40-50 in 10 gal containers.
Some concerns I have are overwintering them in my z5 location, some of my mulbs have not made it overwintering inground as young plants. Also slugs, they really like mulbs and I am concerned inground babies would get chomped.