Answer:
Inside each seed is a baby plant waiting for just the right conditions to grow.
Two. Seed size and planting depth are inseparable. Many say seeds should be buried as deep or no deeper than their diameter. Others say no deeper than twice the diameter.
Optimal soil temperature is key.
Seeds can be started indoors or out. Start seeds indoors to optimize the growing season.
Soaking seeds can speed up the germination process, particularly handy for slow or fussy germinators like carrots.
lastly, seed needs to be scarified (weatherized) before planting.