I have some heirloom tomatoes growing and they finally started to produce last month. They grew 6 ft and put off flowers for 5 months with no tomatoes. I put em in a corner and left em a couple months till near dead. Then I brought them back into my main garden about 2 months ago and the first cold snap hit and boom a month later I have 25 tomatoes in all sizes. The pots their in are small so I have to fertilize a lot. I usually use ALASKA 511, and a lil 30-30-30 miricle gro. Thats been doing ok but I remembered I had some Tigerbloom fertilizers. I though well a quick blast of some really high end fertz couldn't hurt. the next day I go look at my tomaters and one exploded on the vine. About the the top 1/3 of the tomato is split 4 ways almost to the core. I though wow those are good fertz.