Seedling Soil

Boosts soil aeration, drainage, and nutrient uptake to help houseplants flourish

Fortified with beneficial fungi & microbes to help promote healthy root development and lush foliage

Made from eco-friendly, high-quality ingredients (biochar, compost, mycorrhizae, pine bark fines) and is free from peat & synthetic additives.

Our carbon-neutral blend helps fight climate change and is perfect for all types of houseplants, including foliage plants, flowers, ferns, herbs, and tropicals

Plastic neutral packaging in convenient sizes for indoor plant parents

A horticultural charcoal that increases nutrient retention, hosts beneficial microbes, and stores carbon in the soil.

Beneficial microorganisms that form a symbiotic relationship with plant roots, allowing the plants to absorb more nutrients.

Nutrient-rich organic matter produced by worms that provide plants with essential nutrients.

Helps reduce waste in landfills by turning green waste and wood waste into a useful source of nutrients for plants.

A byproduct of the mulch industry which enhance soil structure and improve aeration.

Has large grain size and coarse texture to support soil drainage.

Peat moss has been a common ingredient in commercial potting mixes since the 1960s. However, it's obtained by extracting peat bogs, which are vital ecosystems that store carbon. At Rosy, we believe there's a better way. So, we've developed our blends with alternatives that are effective and sustainable.

Rosy’s indoor potting soil is all-natural, peat free, and made from biochar. 

We’ve consciously sourced our ingredients not only because they’re great for your plants but also because they’re good for our planet. 

Unlike traditional potting soil ingredients that are environmentally taxing, our biochar potting mix only contains natural and carbon-negative amendments.

Read additional information about Our Mission.

We use carbon-negative, organic ingredients to create the best indoor plant potting mix.

Typically, these organic materials are sent to a landfill, where they release methane and CO2 — two potent greenhouse gases. But by redirecting these organic materials from landfills and stabilizing their carbon structure, we prevent the release of those greenhouse gases.

Essentially, we turn our house plant soil into a carbon sink, which means it helps to remove CO2 from the atmosphere.

Discover more about what we mean by Earth Positive on Our Mission page.

Biochar is nature’s soil supercharger — a form of carbon that’s created by heating organic material (like wood or plant matter) in a low-oxygen environment.

Think of it as a sponge-like charcoal made for plants. It improves soil structure, helps retain water and nutrients, and creates a thriving home for beneficial microbes. It’s also incredibly stable, meaning it stays in the soil for hundreds (even thousands!) of years — all while capturing and storing carbon that would otherwise enter the atmosphere.

Unlike peat moss, which is strip-mined from delicate wetlands, biochar is regenerative and climate-positive. It’s science-backed, time-tested, and foundational to everything we do.

Yes! You can add Rosy to your current houseplant potting soil — whether it’s an inorganic or organic potting soil mix, cactus or orchid mix, or otherwise. 

Doing so will help you refresh your old soil and revive its benefits for plant care. 

Alternatively, you could directly replace your current houseplant soil mix with Rosy.

Our 8 Quart bag of Rosy indoor potting mix will fill:

4 to 6 medium 6" pots

Our 4 Quart bag of Rosy indoor potting mix will fill:

2 to 3 medium 6" pots

And unlike traditional indoor potting mixes, you won’t need to replace the soil every year due to compaction.

It’s perfect for starting herbs, veggies, flowers, and microgreens, and gives tiny roots the support they need to grow with confidence.

Best for starting:

Basil, Mint, Cilantro, Parsley, Oregano, Lettuce, Kale, Arugula, Tomatoes, Peppers, Marigolds, Zinnias, Cosmos, and microgreens like Radish, Broccoli, and Sunflower.

Once your seedlings are established, we recommend transplanting them into a garden bed or larger pot using a garden soil and a sprinkle of Biochar Booster — so they can keep thriving in the next stage of growth.

Because even little sprouts need room to grow.