i think we're overlooking the obvious.. when your plants were inside, they got used to being very comfortable. now you put them outside, and just by looking at the pictures, it looks like the soil and conditions are pretty rough. i mean, your plant is the only green thing around (in the pic), which tells me that it's not a great place / time for plants to grow. so basically, your plants will have to battle to survive, and hopefully they can adjust.