Indoor Potting Mix
Indoor Potting Mix

All Natural Begonia Soil

A well-aerated, nutrient-rich potting mix for your begonias
Rated 4.9 out of 5
Based on 65 reviews
Regular price$16.99
Tax included.

☑ Begonia soil mix with high-quality, eco-friendly ingredients
☑ No vermiculite, perlite, coco coir, or sphagnum peat moss
☑ Retains soil moisture and optimizes drainage
☑ The best soil mix for a beautiful begonia flower garden

Vegan Compost

Our aged compost is plant-based and creates a luscious environment for your begonia. 


It boosts soil structure, offers abundant organic matter, and enhances drainage.

It’s also a natural source of vital nutrients for your begonia. This reduces the need for synthetic fertilizer, which can harm microbes and decrease the soil pH.

Carbon-Negative Biochar

Biochar is the foundation of our potting soil. It enhances begonia plant growth by encouraging root development and increasing water and nutrient retention.

But that’s not all.

Biochar helps trap atmospheric carbon dioxide! Three tons of carbon dioxide are removed from the carbon cycle for every ton of biochar generated.

This makes Rosy’s begonia soil a superior alternative to regular potting soil (which often contains unsustainable additives like coco coir and peat moss).

Root Boosting Mycorrhizae

Mycorrhizae (mahy-kuh-rahy-zee) are begonia-friendly fungi that increase your plant’s access to water and essential nutrients. 

How do the fungi do that?

They bond with the begonia flowering plant’s root system. The fungi also release glomalin, a gum-like substance that locks in nutrients and moisture.

Step 1: Pre-Moisten

Moisten your Rosy begonia soil with some water until it holds enough to release a few drops when pressed.

Step 2: Pot or re-pot

Get a pot with drainage holes and fill it up 1/3 with the moist begonia soil. 

Step 3: Plant 

Carefully release your flowering plant from its current soil mix.

Gently loosen the root ball, dislodging any debris, before centering the begonia into your pot. Then, fill the pot with moist Rosy soil, leaving an inch at the top for watering.

Step 4: Water

Water your potted begonia plant carefully, allowing the excess water to drain. 

For the next watering, use bottom watering (by placing the pot in a container/tray of water) to moisten the soil consistently.

Periodically water from the top to flush out accumulated mineral and salt deposits in the soil.  

Rosy maintains excellent eco-friendly processes. And one of the most exciting parts is that our entire supply chain has a net negative carbon footprint!

Our Rosy begonia soil captures over 2kg of CO2 from the carbon cycle.


We intentionally use the most sustainable carbon-negative ingredients (like biochar), packaging, and shipping. 

Read our Life Cycle Assessment to learn more.

Guaranteed Analysis 0.72-0.22-0.37

Total Nitrogen (N) ..................................0.72%

     0.72 % Water Insoluble Nitrogen

Available Phosphate (P2O5)...................0.22%

Soluble Potash (K2O).............................0.37%

Derived from green compost and wood waste compost


Soil Amending Guaranteed Analysis

Active Ingredients

     Rhizophagus irregularis.........2.3 propagules/cm3

     Funneliformis mosseae..........2.1 propagules/cm3

     30% Biochar derived from pine wood

Inert Ingredients

     70% Total Other Ingredients (inert as non plant food ingredients)

Biochar reduces soil density and increases soil aeration.

Mycorrhizae may promote root mass expansion and nutrient efficiency.

Rosy Soil vs Other Soil Brands

Carbon Footprint - 2.05 kg + 3.38 kg
Promotes Soil Biodiversity 🐛 🚫
All Natural Ingredients 100% ???
Peat, Synthetics, And Fillers 🙅‍♀️ 🤷‍♂️

Begonia Soil & Plant Care Guide

Begonias are perennial succulents from tropical climates found in Central America, South Asia, and Africa. 

According to the American Begonia Society, this tropical plant has 2,050+  species that fall under four main types:

  • Fibrous begonia (wax begonia, bedding begonias): Fibrous wax begonias have beautiful flowers with green or bronze foliage. Wax begonias are durable and ever-blooming plants.
  • Cane begonia (angel wing begonia, polka dot begonia): Cane begonia is a sturdy plant with pointy teardrop leaves, similar to the spotted begonia variety — polka dot begonia (Begonia maculata.) These plants typically have small pink, red, or white flowers.
  • Tuberous begonia: The tuberous begonia variety (grown as annuals) has large tropical-hued flowers.
  • Rhizomatous begonia (rex begonia): Rhizomatous begonia has showy foliage with fuzzy, colorful leaves.

We’ll explore everything you should know about nurturing this tropical plant:

1. The Best Begonia Potting Mix

A begonia plant needs:

  • Well-draining soil mix to avoid root rot or stem rot.
  • Nutrient-rich soil (with compost or leaf mold) for essential nutrients.
  • Airy potting mix (with biochar or orchid bark) to help the roots breathe.  

Wondering which soil fits these requirements?

Rosy’s begonia soil! It’s perfect for any houseplant, whether bedding begonias or rhizomatous begonias.

2. How to Grow a Begonia Plant

Follow our begonia care tips to grow healthy plants:

  • Begonias don’t require a lot of soil, so use a pot that looks small for the begonia’s size.
  • Grow your indoor plant from a begonia tuber (bulbous modified stems) in a small pot.
  • Plant begonia tubers or rhizomes 1 foot apart in flower beds and closer together in hanging baskets.
  • Apply organic liquid fertilizer on the begonia tuber or plant to promote growth.
  • Keep growing begonias indoors, away from direct sunlight during the growing season (spring). However, begonia varieties need partial shade or soft light to develop full blooms.
  • Avoid watering your growing begonias with cold or tap water (it’s high in minerals). Instead, use distilled water.
  • Water the edges of the tuber only when the potting mix is dry. Overwatering or soggy soil can cause root rot and fungal diseases, like stem rot or powdery mildew on the leaf and flower.
  • Want to increase humidity for your indoor plant? Use a humidifier and watch your rex begonia or other varieties flourish.
  • Avoid misting your begonia to prevent powdery mildew on leaves. Use a fungicide if mildew occurs.  
  • Begonia care includes dealing with common pests like mealybugs and white flies. Use insecticide soaps, neem oil, or rubbing alcohol to deal with these common pests.

3. Begonia Propagation

You can grow begonias from pre-purchased seeds, tubers, rhizomes, or roots.

But for begonia propagation, use a stem or leaf cutting. 

Here’s how:

  1. Take a leaf cutting or stem cutting and root it in water before transferring it to soil. Keep the container in partial shade (away from direct sun).
  2. Alternatively, directly plant the cutting in a pot filled with Rosy soil and keep it away from direct sunlight.
average rating 4.9 out of 5
Based on 65 reviews
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65 Reviews
Reviewed by Lee Y.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Well worth using!

I used Rosy soil to plant succulents. I mixed it with a little bit of succulent mix and within 2 weeks, the succulents had grown larger and had new growth shoots. I bought more to transplant herbs for the spring. It's well worth the price and it's all I'll buy now.

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Reviewed by Michele J.
I recommend this product
Rated 5 out of 5
Review posted

Super Rich

The soil is super rich. I just had to transplant a lot of my plants and you can tell they love the soil

My plants thank you

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Reviewed by Tara
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great product!

I waited a bit to post to see how my Alocasia were handling the change. They absolutely love Rosy Soil. Every single one of my Alocasia are pushing out new leaves and retaining more of the older ones. It stays airy while retaining a fair amount of moisture. I've also used it in a self-watering pot with a philo camposportoanum and it's sent out tons of new leaves and loads of aerial roots. It's so happy.

Great product, my plants love it. And I'm so happy to be using a sustainable resource for my potting soil now. I'm allergic to coconut (and even cor processing is horrible for the environment) and peat is such a precious resource in the environment that makes them it's really disheartening to have limited options. Allergy meds and tons of salt from processing cor or slowly destroying a natural wonder were the only options I had. Thank you for producing such a quality, sustainable product. ❤️❤️ I'm trying to do my part and Rosy Soil makes it a lot easier to make a better choice. ❤️

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Reviewed by Avis L. P.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Enhanced potting soil

I have purchased this soil several times and used it “as is” and recently I mixed it half and half with some greenhouse purchased soil. I seem to like it better as it holds moisture better. The Rosy Soil has been enhancing and promoting the growth of my plants. I plan on using it for all of my plants once I get to the larger ones. It’s a great product for all of my species so far. That is African violets to ferns to figs. It’s great!

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Reviewed by Janice G.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

My plants are thriving after using Rosy!

Winter in NJ is always rough on my house plants. I added a layer of Rosy Soil to all and they look better than ever!

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