Just start with a few plants and work your way up! You can't be serious in growing hundreds of plants at one time its just ridiculous , even for experienced growers it is massive challenge and considering you want to plant them in urban environment its just a no-go .
My advise : start small with...
Why do you leave if they don't survive? mother nature is just like that there have to be some sacrifices ,I hope they make it through but fertilizing them now isn't a good idea ,
Yeah dont worry it still got enough time to reveg , they get almost no stress at that spot , however today was a shitty day , it hailed and it is raining as fuck , I haven´t see them yet I hope everything is fine , peace out
Don't feed them it will put just more stress , look at the other side of the leaves if you find mites or eggs you should eradicate them , but probably it is heat stress , put them in a spot with more hours of shade .
These pots absorb too much radiation and therefore dry out faster , try to paint them in white , it reflects sunlight and keep them cool . Just an advise ;) Good luck
They are all from fem. seeds , in 10 gallon pots , by now im using 6-5-5 + organic root booster once a week , when they begin start flowering I'll give them Rock Resinator nutrients which is 0-7-8 .By now only one plant is flowering its the hawaiian snow from greenhouse seeds . Im just gonna let...
In 2-3 weeks they should be fine to transplant , buy some good soil , mix it with some goat manure and wood ash but not too much then fill it in the holes .