Biochar Booster

Biochar Booster is made for the garden — a powerful soil amendment that helps everything from tomatoes to tulips grow stronger, stay hydrated, and thrive through the season.

Vegetables like Tomatoes, Peppers, Cucumbers, Zucchini, Carrots, and Beans love the extra drainage and nutrient-holding power.

Herbs like Basil, Oregano, Mint, and Parsley benefit from improved root health and better water flow.

It also supports flowering plants like Marigolds, Sunflowers, Zinnias, and Dahlias by enriching the soil microbiome and retaining key nutrients.

You can also add it to potting soil for fruit trees, raised beds, or container gardens — or mix it into the soil at planting time for long-term improvement.

The best part? It stays in your soil for years, giving your plants (and the planet) a lasting boost.

BUILDING NEW SOIL

Blend 5% of your Rosy Biochar Booster with your favorite garden soil. This 8-quart bag mixes perfectly with 5 cubic feet of soil.

ENHANCING EXISTING SOIL

Top dress your garden with your Rosy Biochar Booster by spreading 1 cup per square foot. This 8-quart bag will cover a standard 4'x8' bed.

WATERING

Water thoroughly after application to activate the beneficial microbes and help the biochar work into the root zone.

TIPS:

• Apply booster under a mulch layer for best results and to keep microbes thriving.

• When your first use Rosy, you might notice it stains your hands black. It washes right off! If you notice the water in your plant saucer looks dark, it's just the biochar and it's a good thing!

• Because of the beneficial fungi in our mixes, Rosy Soil occasionally sprouts a few mushrooms. There's nothing wrong with your soil, quite the opposite!

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.
How is Rosy different from other soils?

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 (https://rosysoil.com/blogs/news/biochar-benefits). 
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 (https://rosysoil.com/pages/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 (https://rosysoil.com/pages/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 (https://rosysoil.com/blogs/news/does-potting-soil-go-bad) and revive its benefits for plant care. 
Alternatively, you could directly replace your current houseplant soil mix with Rosy.

This 8-quart bag mixes perfectly with 5 cubic feet of soil or cover a standard 4'x8' bed.