Soil prepared to receive seed and promote the growth of seedlings The term may apply also to prepared soil in which plants are to be planted by sprigging, sodding, or other means
You can refer to a place or a situation as a seedbed when it seems likely that a particular type of thing or person will develop in that place or situation. TV is using radio as a seedbed for ideas
The soil upon which wild seeds are deposited Its characteristics will influence whether or not germination occurs and whether or not the resulting seedlings will thrive Many North Country species have fairly narrow seedbed requirements