Remove the lid on the top of the Topsy Turvy growing bag.
Reach into the top of the growing bag and pull out the sponge on the opposite end of the bag as well as the sponges on the sides of the bag.
Remove your tomato plants from their containers and place the sponges around the bases of the tomato plant stems. Use one sponge per plant.
Hold the tomato plant by its roots and feed it by its leaves through the top of the growing bag.
Pull the leaves of the plant through one of the holes in the bag with your free hand.
Insert the remaining tomato plants into the remaining holes in similar fashion.
Add potting soil to fill the growing bag to the top. Replace the lid.
Hang the growing bag on the plant stand, and add water to the hole on the top of the lid until the soil is moist.