Spotted lower leaves may signal early blight. Learn how I identify it, slow the spread and protect my tomato harvest.

Those green sprouts curling inside an overripe tomato are called vivipary, and they usually mean the seed’s dormancy hormones have faded. If the fruit is still firm and fresh, you can eat around the sprouts or plant them for an unexpected tomato-growing experiment.

Tiny black spots can spread across tomato leaves and fruit. Here is how I identify bacterial spot and protect the rest of my plants.

Tomato seedlings need gentle feeding at the right time. Here is when I begin fertilizing, how much I use and how I avoid burning young roots.

Start tomato seedlings indoors with the right timing, soil, light, warmth and watering so they grow sturdy instead of tall and weak.

Both overwatering and underwatering make tomato plants wilt — but the fixes are opposite. Here is how to diagnose the problem in 30 seconds and what to do next.

Yellow leaves do not always mean your tomato needs food. Soggy soil, too much nitrogen, thirsty roots, pests, and too little sun can look surprisingly similar. Use the leaf and soil clues here to identify the problem before reaching for fertilizer.

Wilting does not always mean a tomato plant needs water. If the soil is still wet, limp leaves, yellowing from the bottom up, mushy stems, and a funky smell point to overwatering, with practical steps to help the roots recover.