A paper-towel germination test shows whether stored seed is still alive. It can also reveal the root before the shoot, but very delicate or specially dormant species should simply be sown as their packet directs.
You need ten untreated seeds, a paper towel, water, a closable bag, and a label.
- Write the seed name, date, and packet's expected germination time on the bag.
- Wet the towel, squeeze out excess water, and lay it flat.
- Space ten seeds near one edge and roll the towel loosely.
- Place it in the bag and close it to hold moisture.
- Keep it at the packet's recommended temperature and out of harsh direct sun.
- Check every couple of days. Mist only if the towel begins to dry; discard a mouldy test.
- At the expected time, count normal sprouts. Seven of ten means an approximate 70 percent germination rate.
If it is planting season, handle a new sprout by the seed coat or leaf end, never the fragile white root. If it sticks, cut away the surrounding towel instead of pulling. Plant at once in mix or prepared soil.
Do not soak every seed overnight; beans may benefit for an observation, while small seed and treated seed may be damaged or expose a coating. Follow the label and wash hands after handling seed.