The best replacement for potting soil is potting mix.

The best alternatives to potting soil are rated as following:
★★★★★  potting mix
★★★★  garden soil
★★★★  topsoil
★★★  dirt
★★  compost
★★  sand
★  top soil
★  seed starter
★  peat moss
★  planting mix
★  mulch
★  fertilizer
  regular soil
  mix
  gardening soil
  soil
  planting soil
  seed starting mix
  ground soil

Your alternative for potting soil is not listed? Suggest!
Speaking about potting soil, one probably shouldn't forget about perlite.

Other search terms related to potting soil and their ratings are:
★★★★★ perlite
★★★★★ peat moss
★ vermiculite and perlite
★ topsoil
worm casting
You have in mind a companion for potting soil and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of potting soil in all years. Click on graph for more.
potting soil
potting mix
garden soil