Hi Fatih,

I received the following from Darrell Kromm at Reeseville Ridge Nursery:

"To stratify the seed just a piece of moist paper towel or moist paper shreds inside a sealed plastic bag will work. To help the seed intake some water all could be soaked in water over night and drained before placing them into the plastic bags.

These species would need cold moist stratification at 1-3 degrees celsius ( 32-38 degrees F )

Arbutus menziesii about 60 days cold moist
Quercus rubrqa 60-90 days cold moist, the shorter amount if the seed is from a southern source.
Carya illinoiensis 60-90 days cold moist
Celtis occidentalis 60-90 days cold moist, rub off the dried flesh of the fruit first.
Cedrus libani and Cedrus deodora should germinate without stratification but 2 weeks cold moist may give a more even germination timing.
Ulmus americana Try just the water soak and sowing, if none germinate in 2-3 weeks give them some cool stratification time and keep watching them.
Platanus occidentalis should germinate if sown on the surface of moist soil in a warm place. You could also try them rolled up in a moist paper towel in a bag, then check them for germination every few days. Pluck out and pot up those that begin to germinate. Platanus occidentalis may have a majority of empty seeds.
Taxodium huegelii should germinate if sown in soil that is kept very moist and warm, these may take several months to germinate but should not need much of any cold stratification.

The Quercus macrocarpa that have begun to show the root emerging could be sown into pots, the top shoots may take a month or two to develop. You could also place the potted acorns in a cool place and keep the pots moist inside plastic bags. Rodents will often find anything left unprotected in open pots.

None of the species should need scarification.

Anything potted up could be set outside in a protected spot out of high sun and wind for the first several weeks. Again you’ll need some way to protect them all from rodents. Cover them or take them indoors if you expect frosts."


Have fun!

Bill D.

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