Build a simple "Planter Pallet" out of free, recycled, or reclaimed materials, to keep tree roots from invading your potted plants. The pallet also helps your containers drain better, because they aren't sitting flush on the surface! These are great for patio containers, and may be cut into various shapes to suit your fancy!
This handy little garden tool is invaluable when it's time to protect your seedlings from the cold, wind, or sun or to harden them off for transplanting into the garden.
It is important to moisten your seed-starting medium before you start your seeds. After adding water, use a potato masher to completely mix the seed-starting mixture or peat-based potting mixes. It's much easier and quicker!
A heating pad set on low and placed underneath a cookie rack makes a great impromptu bottom-heat source for tomato, pepper and other seeds! Just set the tray on the mat until the seedlings germinate. Do NOT leave the pad on while you're away from home!
To avoid spreading disease, soak your garden pruners in a solution of bleach (at a ratio of 1 part bleach to 10 parts water) in between your cuttings, and after each use. Then rinse, dry, and spray with some WD-40. They'll be good as new, every time you reach for them!
Use cat litter trays to transport your seedlings! They can be purchased at your local $1 store, and are very sturdy. You can carry twelve 16-ounce Red Solo cups in a tray with one hand, confident that it won't tip over, or crack! And, you can fit three trays side by side under a 48" fluorescent light kit!
No need to purchase expensive seed-starting systems. Use plastic cleaner bags, tied at one end and vented on the other end (or, just pinch a couple holes on top), to create mini-greenhouses to germinate your seedlings! Your cut-up vinyl mini-blind plant labels will tent the plastic!
Use an old microwave oven to sterilize seed starting mix! Wet the mix evenly, and nuke it for 20 minutes. Quickly fluff it up to release the steam, and cover with a clean bucket lid for 10 minutes. Re-fluff and cover until just warm.