Tracy , don't be in too much of a rush . Far too many folk sow much too early & lose a lot of seedlings to bad weather & pests.
If you look online you should be able to find your average first & last frost dates for your locality .
Sowing a day or so after the last average frost date should soon see your seedlings catch up & in a lot of cases over take earlier sown seeds that have suffered thermal shock & water distress .
If you sow a few seeds in an indoor plant pot in well damp seed compost , germinate it covered in cling film in the airing cupboard As soon as the yellowish green shoots start to poke their heads up in 7 to 14 days .
So check every day mentioned , take it out the airing cupboard & put the pot on a saucer on a window cill that's not got a radiator frying the seedlings under it or where it has strong sunlight on them you should be able to bring the seedlings on to about an inch high .
Now put them on a cill in a north facing window but don't have them right against the glass in case it freezing .
On a frost free day at about 10 o C or above , when the seedlings get to 2 " tall carefully prick out the plants with the back of a teaspoon handle after soaking the pot for a good hour in a bowl of room temp rain water.
Without damaging the stem or roots transplant in to dibbed holes , gently back fill & them water well .
Perhaps sprinkle slug pellets if you have any sign of slugs . Cover with a weighted down at the edges white fleece to ward off a sharp frost .
They will develop bigger natural roots in about a month .
Don't sow a lot in one go , unless you hope to fill the freezer .
Sowing three or four seeds every a week to ten days apart should see you have them throughout the year & you can eat all the greenery as well .
Cauli's can be difficult to grow , they like Boron in the soill .. this can be added by giving a dressing of Epsom salts a week or so , scratching & watering it in to the area you want to plant up
It's taken me five years to get decent caulis's in virgin garden soil.
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