Cover everything except the plant, place containers under shelter where you can, and check levels after heavy rain. Rain doesn’t just dilute the solution: it can refill the air gap that the upper roots depend on. Why Rain Matters for Kratky In the Kratky method...
Seal every gap between the net cup and the lid, keep the growing medium from staying soggy at the surface, and use yellow sticky traps for the adults. Small flies need moist surfaces and open water to breed, so closing those off breaks the cycle. Which Flies Are They?...
Put containers where pets can’t reach them, cover every opening around the net cups, and use stable containers that are hard to knock over. Pets are drawn to the water and the leaves, so physical barriers work better than training. Why It Matters Nutrient...
Keep light away from the nutrient solution. Algae needs light to grow, so a fully covered jar won’t grow it. Wrap or paint the jar and make sure the net cup and lid leave no gaps. Why Algae Is a Problem Algae competes with your plant for nutrients, can coat the...
Basil, mint, chives, parsley and cilantro are the most reliable herbs for Kratky jars on a windowsill. They stay compact, grow well in a single jar and can be harvested a little at a time. Basil Basil likes warmth and plenty of light, so give it your sunniest window....
