Anyone has had success growing Chinese haw seedlings from seeds? The seeds are so hard. Not sure if the seeds should be broken.
It’s not unusual for the Crataegus seeds to be empty. Crack a few of them and check. As for whether or not you should crack all of them - it’s up to you. If you plant them whole most of them (the viable ones) will germinate not after one winter, but after two, i.e. if you plant them now expect them to germinate spring 2022.
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Two winters. Interesting. Need more research. TY.