Ok - I'm no expert - but most of my herbs, flowers, veggies, even the mold in the fridge grows quite successfully.
Cilantro is another story. I have grown from seed and seedling and time after time I get a tall (like 4 feet), plant in a matter of weeks without those gorgeous flat leaves. It goes right to seed. What am I doing wrong? Typically - those little plastic spikes with directions from the nursery are missing!!! HELP!!