Blossom‑End Rot on Tomatoes: Watering, Calcium, and pH

Cause

Soft brown bottoms = blossom‑end rot. Not just calcium deficiency — usually pH imbalance prevents uptake. Irregular watering worsens it.

Prevention

• Consistent moisture (mulch heavily).
• Soil pH 6.5–7.0.
• Epsom salts (magnesium) at planting + foliar spray.
• Crushed Tums (calcium) as quick fix.

Note

Already‑affected fruit won't recover. Focus on new fruit set.