Experts and BHG readers answer.
Making large pots lighter
For years, I used styrofoam peanuts. (You have to make sure you don't get the kind that dissolve in water.) The drawback is that they're a real mess when you have to repot. Several new products on the market simplify the heavy-pot dilemma. Ups-a-Daisy are round disc inserts for pots. (ups-a-daisy.com) And Better Than Rocks are large sponges that fill up the pot bottoms. (betterthanrocks.com)