sometimes when you first make a hole and put in your soil amendment, critters will dig up the dirt, cause they smell fresh earth. and in the process will pull up your plant. so if you can screen them in to protect them while they are young. it would help.
If you add certain nutes, it will draw critters...like fish emulsion,blood meal...etc...
if you can dig your hole and add your soil in advance, so the critters will investigate and forget it.
check your spot to see what kinda sun your getting, try a south facing slope. also trees...in the fall they will get leaves that can block your light.
also if there is plants around that it could blend in with.
I like brier patches, keeps out most critters.
when you take you youngins out, leave em in there pots and put em in the shade at first, them gradually over a few days put them in sun. couple hours at first then more as you go, if you put them in the ground right out the gate they can get burned...not used to sun... but i've know peeps that put them straight out and got lucky and they did fine.
after they have got used to sun...put em in ground, if you can screen em,do it. you can pee around them,also if you can get alot of human hair, spread that too. maybe a little neem. slug bait killer.
good luck mike.