Yelram,

when growing herb the most important thing to have is a thing called patience.

u should have left the seed. the white tail is called the "tap root". this pushes down into the soil and pushes the shell casing up...it will look like ur plant is wearing a helmet when it first sprouts thru the soil......u should have planted the tap root facing down

leave it now tho.....ur going to stress ya future plant and kill it

all good things come to those who wait