seeds will vary (even if they are the same strain) with germination times. dont giv up hope yet, it can take ages for some seeds to germ, and out of that many there will be some that dont at all. yes, a heat mat would higher chances of germination, but make sure it doesnt get to hot or dry out the germinating medium(tissue ,cotton wool etc).
good luck
king cola Reviewed by king cola on . way for seeds to sprout? Im new to growing, i got my seeds and i soaked them in water, some seeds sprouted but i still have a lot that haven't sprouted. How do i make sure they grow? should i use a heat mat? i atached a picture of how the seeds currently are. Rating: 5