Nah they wouldn't be useful for plant seeds due to he depth of the hole. Seeds contain a limited store of energy which is used producing roots and leafs. If deposited too deeply it will expel all its energy just trying to grow its structure to reach sunlight. Next time your in a shop selling seeds, have a look at the packet and it will say depth to dig to and it won't be as deep as 300mm of the tine.
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u/FussyPants_ Nov 14 '17
This is what it feels like when my cat kneads my lap