Lalambchop1 said:OK, I know it's different for different plants and age of seed, etc., but is there a rule of thumb for how many seeds one should plant vs the number of plants desired?
I tend to overdo it usually for most things. I usually plant out chunks of seedlings from wintersown stuff, rather than individual plants. So for those I sprinkle smallish seed over the whole surface of the potting mix. If seedlings seem really overcrowded early on, I just pluck out some seedlings to provide more space. If you're direct sowing outside, do it heavily. Wintersowing in protected containers decreases the number that get lost to animals, rain wash out, etc. compared to direct sowing. When sowing older seed or those of an unknown age, I also sow more heavily. If they are seeds that should come up really quickly and you will have plenty of time to start more if necessary, then you can sow more sparingly. For a lot of the things that need long cold moist stratification I tend to sow heavily. If you get poor germination with those, you won't really have time to easily start the whole process over again this year.
For things like tomatoes where I only really want one of each plant and the seeds are not old, I might sow five seeds. Then I keep up to three seedlings until I put them in the ground. Once they start to grow a little, I will pick the best looking one and pluck out the other two.