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Potting Mix
Price per quart across bag sizes.
The cheapest potting mix right now is Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting at $0.392 / qt — 10 product lines compared, ranked by real price per qt.
💲 Prices and availability verified Oct 30, 2026, not live-updated yet — accurate as of that date and subject to change. Check the retailer for the current price before buying.
Price
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10 of 10 product lines · sorted by best price per unit
Best value
Back to the Roots
Back to The Roots Organic Coir, 51 Quart Expanding Soil, Great for Seeds and Potting
$0.392 / qt
$19.98 total · 1 size
Miracle-Gro
Miracle-Gro Indoor Potting Mix for Seed Starting, 8 qt. (2-Pack)
$0.668 / qt
$10.69 total · 1 size
Miracle-Gro
Miracle-Gro Potting Mix, 16 qt.
$0.687 / qt
$10.99 total · 1 size
Miracle-Gro
Miracle-Gro Moisture Control Potting Mix, 8 qt. (2-Pack)
$0.848 / qt
$13.56 total · 1 size
Miracle-Gro
Miracle-Gro Indoor Potting Mix for All Plants, 6 qt., 2-Pack
$1.08 / qt
$12.99 total · 1 size
Old Potters
Old Potters Germination Mix with Peat Moss, Fine Perlite & Vermiculite - Perfect for Seed Germination, Plugs, and Cutting Propagation - Balanced pH, Enhanced Drainage and Aeration, 24 Quarts.
$1.12 / qt
$26.99 total · 1 size
Back to the Roots
Back to the Roots 100% Organic Potting Mix (6 Quart) Premium Blend Made in The USA
$1.16 / qt
$6.96 total · 1 size
Back to the Roots
Back to the Roots 3-in-1 Seed Starting Mix 6 Quarts, 100% Organic & USA Made for Herbs, Veggies, Flowers, w/Nutrient Rich Plant Food, Worm-Castings, & Moisture Controlling Yucca Brown
$1.16 / qt
$6.97 total · 1 size
Better-Gro
Better-Gro Special Orchid Mix - Orchid Bark Potting Mix - 4 Quarts | Enhanced drainage, air flow & root ventilation, ideal for Phalaenopsis, Cattleyas, Dendrobiums
$1.35 / qt
$5.38 total · 1 size
Back to the Roots
Back to the Roots 100% Organic Indoor Potting Mix (6 Quart), Promotes Healthy Houseplant Growth, Made in The USA
$1.67 / qt
$9.99 total · 1 size
Price filters apply to total listing price. Ranked by price per qt within your filters.