Havamsu
GARDEN / A VISUAL GUIDE
Practical growing ideas for the space you have.
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Identify blossom-end rot by a flat, leathery, dark sunken patch squarely at the fruit's base. Stems and leaves remain healthy. It is an abiotic calcium issue, not an infectious disease, fungus, or pest damage.
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Prune off affected green tomatoes immediately. Damaged cell walls cannot heal. Removing damaged fruit redirects precious water, sugars, and calcium to healthy upper clusters on the plant.
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Calcium travels solely through the plant's water stream. Hot winds and dry potting mix halt calcium delivery to fruit tips. Water when the top inch is dry, ensuring ten to fifteen percent drains freely.
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Standard tomatoes need a minimum 5-gallon container with 10 to 12 inches of depth to prevent severe moisture swings. Add a 1- to 2-inch layer of clean straw or shredded bark mulch.
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Skip ammonium-heavy fertilizers, bloom boosters, and Epsom salts. Excess ammonium, potassium, and magnesium block calcium absorption at the roots. Instead, choose balanced fertilizers where nitrogen comes primarily from nitrate.
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Avoid foliar sprays and crushed eggshells. Foliar calcium cannot move to fruit, and eggshells take months to break down. Consistent watering and adequate container volume remain your best defense.
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