What is the best temperature and amount of time for cold-treating rose seeds to optimize the germination rate?
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Hi janet welcome to the forum
There is many methods if searching you will find many answers
I put the seeds into the fridge for one or two months
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Hi, Janet. Welcome!
If you are like me and really want to avoid your food spoiling, you might have your fridge a bit on the cold side. (Mine tends to be 32 - 33°. The optimum temperature for stratifying rose seeds is usually closer to 40 – say 36-39 (3-4 degrees Celsius.) per, I believe, Paul’s experience.) After turning my fridge colder following issues with food spoilage, my germination success dropped notably.
A small apartment size fridge can becset to a warmer temperature and double for healing in cuttings over winter if you start propagating. Used fridges can sometimes be found cheeply if you really get into this.
Good luck!
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