Hi, Ellen, you don't say where you are (north, south, east, west), so it's not clear if your tomatoes are "on schedule" for ripening. However, this being only July, there would be plenty of time almost anywhere for them to turn red.
As for fertilizer, we are inclined to say, if it ain't broke ... ya' know? (Don't fix it.) But if you want to, use a fertilizer that is low in nitrogen (N) and relatively higher in phosphorus (P) and potassium (K). An 8–32–16, for example, or even a 5–10–10.
We advise fertilizing two weeks before and two weeks after the first picking. (see above)
Here's a chart for watering frequency: http://www.almanac.com/content/when-water-vegetables
Sounds like you're having a great season!
Hi, Ellen, you don't say where you are (north, south, east, west), so it's not clear if your tomatoes are "on schedule" for ripening. However, this being only July, there would be plenty of time almost anywhere for them to turn red.
As for fertilizer, we are inclined to say, if it ain't broke ... ya' know? (Don't fix it.) But if you want to, use a fertilizer that is low in nitrogen (N) and relatively higher in phosphorus (P) and potassium (K). An 8–32–16, for example, or even a 5–10–10.
We advise fertilizing two weeks before and two weeks after the first picking. (see above)
Here's a chart for watering frequency: http://www.almanac.com/content/when-water-vegetables
Sounds like you're having a great season!