The Q&A Archives: Why Are My Vetetable Leaves Tuning Brown And Dying?

Question: In late February I started growing my vegetables indoors using grow lights. We have had very nice weather lately so last weekend I planted my garden. Within one day, the leaves on my vegetables began turning brown. Each day they seem to be getting worse. What can be causing this?

Answer: The most common reason for this is lack of conditioning or insifficient hardening off prior to setting transplants in the garden. They are basically in shock and suffering windburn and sunburn. Plants grown indoors need to be acclimated gradually to the rigors of wind and sunshine over about a week's time. This allows them to toughen up before being placed in the real world. Start them in a sheltered spot with some early morning sun, then move them day by day to sunnier spots until they are in sunshine all morning. Also back off a little bit on the watering so tehy are a bit dry in between waterings. After about a week, and if possible on a cloudy day before a rain, plant them. Water each one well at planting and as needed until they become rooted.

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