Blossom-End Rot on Tomato

Start by checking soil four to six inches deep near the main stem and adjust watering so that layer stays evenly damp, not soggy. Remove badly affected fruit so the plant redirects energy into new, healthier tomatoes forming above them.

Look closely at pea- to marble-size tomatoes; ends should stay firm and pale green without leathery spots. Keep mulch two to three inches thick around the root zone to buffer rainstorms and hot spells while monitoring for any fresh scarring areas.

By now, most newly formed fruit should look normal if moisture and feeding are consistent, even during heat. Resume your usual watering pattern using one deep soak every few days instead of frequent light sprinkles, and avoid sudden fertilizer changes mid-season.