I use the vapor bomb if i'm in a hurry to sell plants (lemonbush at 600.00 each) for quick cash. other wise i olny usr fertilizer bombs they really make nice plants.

Insta-grow is helpful for one thing. When you are trying to plant a rare plant in cheap soil and it loses health quickly, use the insta-grow. While it's speed-growing, it won't lose as much or I think any health.