Does anyone know why my King Parsley won't plant? I'm doing Ferric's 69 plot. I've also tried using a medium pot as you can see in the top right.. Some seeds will not sink in any reasonable time frame. Rosa rugosa, for example, often float and germinate very well. Other seeds that will grow a radicle while soaking can be seen floating with a radicle.
Can you test seed germination viability by floating the seed in water? How reliable is this method and does it work for all seeds?. If you want to produce healthy seedlings, you need to start with viable seeds. Some gardeners claim that testing whether seeds sink or float is a great way to determine if they'll germinate. But is there any truth to this claim? Join gardener Briana Yablonski as she dives into the world of sinking and floating seeds.