Which method was 100% successful? Which method was easiest? I tried six methods of scarifying Canna Lily seeds to find out. Sandpaper, Nail Clippers, Wen Rotary Tool from Amazon [ Ссылка ] , Boiling Water, Hydrogen Peroxide, and Blender were the methods I used to scarify canna seeds so that they would germinate and grow into Canna Lily plants.
I used sandpaper to try and rub off part of the hard shell of the canna seed. I tried to nick the canna seed using nail clippers, a rotary tool, and a blender. I tried two methods of softening the hard canna lily seed shell, soaking in hydrogen peroxide and water, and pouring boiling water onto the seeds.
The boiling water method is the easiest method and 7 out of 10 seeds germinated and grew into canna lily plants. The Rotary Tool method was the most effecient method as 10 out of 10 seeds germinated. But it is a more time consuming method. The Boiling Water method is best if you have a lot of seeds, while the Rotary Tool method is the best if you have a handful of seeds to scarify.
The other methods - sandpaper, blender, and hydrogen peroxide were unsuccessful or in the case of the blender method you might end up wasting too many seeds figuring out which setting your blender will scarify the seeds without destroying them.
I recommend the Rotary Tool method and the Boiling Water method to scarify canna lily seeds. Wen Rotary Tool on Amazon [ Ссылка ]
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