I bought plum tomato plants from a local farmers market about 1 month ago. They were planted about 3&1/2 weeks ago. I have treated them like I would treat a baby ( love and compassion). They have the best organic compost and the best fertilizer, but they have barely moved in size. I have 5 planted and they all look the same. I can see new leaves coming in but they are moving verrrrrry slow. They got plenty of water as well. Everything else in my garden is doing great. Anybody have any idea what's up? Is the type of tomato?