they were still seeds and they were in the ground, you are fine. i had mine in containers no drainage starting off, they had the first leaves and little leaflets with 3 leaves. rained its ass off, they looked pretty good, so i left the water in them. came back a few days later, they were drowning. put them in the ground and now they mysteriously vanished, roots and all. i think bugs, because usually in that situation i will find a withered strand of seedling if they just dried out. its def. bugs. i forgot the name of them, but they are skinny long things that are like worms but they have legs and shell armor i think. brown, and i've seen them on one of these sites before. now i'm all out of seeds and lost 2 week old babies. it was only 3 of them but they were from good seed. i know where not to plant them now though. frikkin bugs must have found those plants so moist and tender and just chowed down. another possibility is i threw a huge shovel chunk of ant hill in the area near where they were. those ants were probably hungry trying to rebuild their home and ate my plants for revenge for digging them up and killing the rest of their family. but maybe they can start eating those other bugs while they're down there.. i think you're alright though. i learned the importance of drainage after this rain. the natural earth drains very well, where it doesnt you will see standing water. so i think you are good, you have the earth for drainage. i had a glass drowning pool.