Miracle-Gro Expand 'n Gro Concentrated Planting Mix — Expands 3x with Water, For Containers & In-Ground, 0.67 cu ft

Miracle-Gro Expand 'n Gro: A Flexible Planting Solution

Turn your planting project into a smoother, more forgiving experience with Miracle-Gro Expand 'n Gro Concentrated Planting Mix. This soil substitute expands up to three times its volume when you add water, while delivering slow-release fertilizer to support your plants for up to six months. Designed for both container plants and in-ground gardens, it blends convenience with proven gardening performance, helping you create healthier growth without guesswork.

What makes Expand 'n Gro stand out are its tangible, sensory-friendly traits: a light, airy texture that feels less dense than traditional potting soils, plus natural fibers that help retain moisture while still allowing air to reach roots. The result is a mix that can feel easier to work with during potting sessions and offers a welcoming environment for young roots to establish themselves.

Key benefits at a glance

• Expands up to 3x when combined with water, giving you more planting mix per bag
• Contains fertilizer that feeds plants for up to 6 months
• All-natural fibers hold up to 50% more water than basic potting soil
• Soil becomes up to 40% lighter, with up to 90% more air space for roots
• One 0.67 cu ft bag covers four 12-inch containers or 8 sq ft of in-ground area

How to use

Container gardening

• Fill a pot with a drain hole about one-third full of the mix
• Gradually add water and stir until the mix expands
• After expansion, plant as usual

In-ground gardening

• Spread a 1-inch layer of planting mix over the area to be planted
• Mix with the top 4–6 inches of soil before planting as usual
• Water thoroughly to finish

Why you might choose Expand 'n Gro

This versatile mix is designed to work with a variety of plants, offering an easier route to hydration and aeration. Whether you’re combining it with existing soil or using it as a standalone potting medium, the product aims to simplify the care routine while supporting root health and sustained feeding.