will seeds of carrots,spinach
and radish germinate since i sowed them in october in an outdoor planter in october.now there is small little stems with leaves?

Sounds like they did germinate, at least some of them, David. Unless some weed seeds blew in there or something. Got a picture?

You can tell them apart by the shapes of the leaves - carrots will have feathery little leaves, spinach will be dark green, long and narrow and radish are round (I think . . ). Unless it's a very large planter, you've got a job ahead of you to thin out those seedlings into other planters. Each plant needs about 4in. square to grow to maturity. Carrots need deep, airy soil unless it is a short-rooted type.

thanks for your reply......i was actually concernd about the seasons and the time it took for them to react.now is the end of february i sowed in october....it took them 4 months to appear(thats one issue....maybe because they went through the winter cold not in a greenhouse) the second is the season .....can spinach for example survive the heat of the coming spring?

Spinach is a cool-season crop for sure. So it's very good that it is germinating now, not a month from now. (yes, the seeds were lying dormant over the winter, probably)

You should plan to use it up before the weather gets hot though. The leaves will get tougher and strong-tasting once the weather gets too hot. Same with the radish and carrots. We had carrots growing in the school garden here, but since it was still in the 80's well into December, they were very tough and didn't grow straight.

thanks for your reply i had an ituition