mixed up my plants how cAn i tell them apart?

I have 7 blue mystics and 2 hash plants they are small bearly the 1st 2 sets of leaves will i be able to tell them apart once they are bigger??

Most likely look at grow journals featuring the strains your looking for. Also when ur finished flowering a smoke test will always point u in the right direction. The palate never lies. Look at other smoke reports to find out the flavors and highs u should look for. Always works for me when I get random freebies. Good luck.

Should be easy once they go into their veg state.