[MadCow333]

I use a variety of ferts on my tomatoes and peppers. And a large part of my plan is "what I got on sale," lol. I grow all in containers. Container conditions can and do change abruptly due to weather. I put the spikes in, when I pot the plants up. I put some in along the way. But I only used spikes in the smaller containers because they are not economical to use large scale. I watch my plants and feed more heavily if they need it. I try to stay light on the Miracle gro salt types but I use those some. I still have a freezer full of tomatoes from 2016; my plants were good producers.

If you have a few plants and small containers, Jobes spikes might work great for you for the most part? But they are not complete nutrition.