How to Sanitize Pots and Trays the Easy Way (A Quick Reset That Prevents Big Problems)
If youโve ever had fungus gnats, mystery mold, damping-off, or seedlings that suddenly flop over for no good reasonโฆ thereโs a good chance your pots and trays had a little โleftover historyโ on them. The good news: you donโt need fancy products or a full afternoon of scrubbing to reset your containers. You just need a simple routine thatโs easy enough to actually do. Especially in January when weโre prepping for seed starting season. Below is a beginner-friendly method that works for pots, seed trays, cell inserts, humidity domes, and saucers. ๐๐ก๐ฒ S๐๐ง๐ข๐ญ๐ข๐ณ๐ข๐ง๐ M๐๐ญ๐ญ๐๐ซ๐ฌ (๐ข๐ง ๐ฉ๐ฅ๐๐ข๐ง ๐๐ง๐ ๐ฅ๐ข๐ฌ๐ก) Old pots and trays can carry: * fungus and mold spores * algae film * fertilizer salts (that crusty white stuff) * pest eggs/larvae hiding in creases * disease organisms from last seasonโs plants Sanitizing helps reduce problems before they start. Especially for seed starting, where young plants are extra sensitive. ๐๐ก๐๐ญ ๐๐จ๐ฎโ๐ฅ๐ฅ ๐๐๐๐ (๐ค๐๐๐ฉ ๐ข๐ญ ๐ฌ๐ข๐ฆ๐ฉ๐ฅ๐) Pick what you already have: * Dish soap + warm water * A scrub brush or old sponge * A tub/sink/bucket * One sanitizer option (choose ONE): * ๐๐ฅ๐๐๐๐ก (fast + very effective) * ๐๐ฒ๐๐ซ๐จ๐ ๐๐ง ๐ฉ๐๐ซ๐จ๐ฑ๐ข๐๐ (easy, less stinky) * ๐๐ก๐ข๐ญ๐ ๐ฏ๐ข๐ง๐๐ ๐๐ซ (fine for mineral buildup, lighter-duty for sanitizing) * ๐๐ก๐ โ๐๐๐ฌ๐ฒ ๐๐๐ฒโ ๐๐๐ญ๐ก๐จ๐ (๐๐ฅ๐๐๐ง โ ๐๐จ๐๐ค โ ๐๐ซ๐ฒ) ๐๐ญ๐๐ฉ ๐: ๐๐ก๐๐ค๐, ๐๐ฎ๐ฆ๐ฉ, ๐๐ง๐ ๐ซ๐ข๐ง๐ฌ๐ (๐ ๐ฆ๐ข๐ง๐ฎ๐ญ๐๐ฌ) * Dump old soil and roots * Knock off loose debris * Rinse pots/trays with water ๐๐ข๐ฉ: If itโs caked-on, let it soak in plain water for 10 minutes first. ๐๐ญ๐๐ฉ ๐: ๐๐๐ฌ๐ก ๐ฐ๐ข๐ญ๐ก ๐ฌ๐จ๐๐ฉ๐ฒ ๐ฐ๐๐ญ๐๐ซ (๐ญ๐ก๐ ๐ฉ๐๐ซ๐ญ ๐ญ๐ก๐๐ญ ๐๐๐ญ๐ฎ๐๐ฅ๐ฅ๐ฒ ๐ฆ๐๐ญ๐ญ๐๐ซ๐ฌ) Sanitizers donโt work well through dirt. So do a quick scrub first: * Add a few drops of dish soap to warm water * Scrub the inside, bottom, and drainage holes * Rinse This step alone fixes a surprising number of issues. ๐๐ญ๐๐ฉ ๐: ๐๐ก๐จ๐จ๐ฌ๐ ๐ฒ๐จ๐ฎ๐ซ ๐ฌ๐๐ง๐ข๐ญ๐ข๐ณ๐๐ซ ๐ฌ๐จ๐๐ค (๐ฉ๐ข๐๐ค ๐จ๐ง๐) ๐๐ฉ๐ญ๐ข๐จ๐ง ๐: ๐๐ฅ๐๐๐๐ก ๐ฌ๐จ๐๐ค (๐๐๐ฌ๐ญ ๐๐จ๐ซ โ๐ ๐ฐ๐๐ง๐ญ ๐ข๐ญ ๐ญ๐ซ๐ฎ๐ฅ๐ฒ ๐๐ฅ๐๐๐งโ) * Mix 1 part bleach to 9 parts water (a 10% solution) * Soak pots/trays 10 minutes * Rinse well * Air dry completely ๐๐๐ฌ๐ญ ๐๐จ๐ซ: seed trays, domes, anything that previously had disease, or if youโve had damping-off.