edema

Should You Remove Cotyledons to Slow Tomato Seedling Growth?

📌 Quick Summary (TL;DR): Seedling Leaf Removal & Watering Issues 💧 Misdiagnosing Deficiencies: Yellowing between leaf veins and drying green edges in young seedlings is often misdiagnosed as magnesium deficiency or edema. In reality, it is usually just severe underwatering! Good starter soil rarely runs out of nutrients in the first few weeks. 🌱 Cotyledons … Read more

Tomato Seedling Leaves Falling Off: Edema Paper Collar Trick

📌 Quick Summary (TL;DR): Dealing with Tomato Seedling Edema 🌍 The Problem: Leaves wilting, dropping off, or developing crystal-like blister bumps on the undersides. This is often caused by Edema (Oedema)—a physiological water-retention disorder, not a disease. 🌿 The Cause: Edema happens when the roots take up water faster than the leaves can transpire (sweat) … Read more