Please read through as I have multiple problems going on here.
I have several small planters on my porch with the following "growing"
Lettuce (Not head)
Basil is growing great. Several harvests.
Rosemary also doing well.
Lettuce - Grew up in a sad stalks with few broad leaves that never really filled in.
Spinach - Sprouts were coming in well and 2 days later all sprouts but 1 died. The sole survivor never got over 3" tall and has only 4 small (pea sized) leaves.
JalapeÃƒÂ±o - Plant grew into two "stalks" each stalk grew only 1 pepper. One of the stalks has a 2nd pepper, but it has been 1/16" for over 1.5 months now
Habanero - Plant looks great, but only 1 pepper which has now ripened into a lovely orange. Several more spurts of flowering has occurred, but each flower stalk turns yellow and dies
Carrots - Nice greens growing 6+" tall, but no sign of 'carrot' peeking through the ground, so today I dug one up. The root went down about 3" in a sad white strand. No sign of carrot development.
Any tips on what I did so wrong here? All have been watered regularly, and fed "Miracle Grow" for veggies.