A professional-grade, sustainable substrate for terrariums and potted begonias, designed to help plants root faster, stay healthier, and thrive long-term in high humidity. It mimics the airy, bark and mineral-rich forest floor many understory plants naturally grow in.
Every ingredient is thoroughly washed to remove salts, dust, and excess fines, keeping conductivity low for sensitive roots. The coco coir is CalMag-buffered for multiple days to pre-load its exchange sites, keeping calcium and magnesium more available to the plant.
Fine bark adds structure, airflow, and mild acidity. Pumice keeps the mix open and breathable without floating or breaking down like perlite. Calcined clay holds moisture and releases it gradually, smoothing wet-dry swings without sacrificing air space. Horticultural charcoal adds durable porosity and helps keep the root zone cleaner in high humidity. The result is a stable, breathable mix that supports a mildly acidic pH around 5.5–6.0, making high-humidity growing more forgiving as plants establish and mature.
Use for:
Begonia · Sonerila · Labisia · Marcgravia · Piper · Jewel Orchids · Most Tropical Understory Plants
Ingredients:
Fine Bark · Pumice · Buffered Coco Coir · Calcined Clay · Horticultural Charcoal
*MAY SHIP SEPARATELY FROM PLANT ORDER*
Estimated shipping date: To be calculated
Ships from: Santa Clarita, CA
Shipping fee: Free
Sales tax:
Returns and exchanges:
A professional-grade, sustainable substrate for terrariums and potted begonias, designed to help plants root faster, stay healthier, and thrive long-term in high humidity. It mimics the airy, bark and mineral-rich forest floor many understory plants naturally grow in.
Every ingredient is thoroughly washed to remove salts, dust, and excess fines, keeping conductivity low for sensitive roots. The coco coir is CalMag-buffered for multiple days to pre-load its exchange sites, keeping calcium and magnesium more available to the plant.
Fine bark adds structure, airflow, and mild acidity. Pumice keeps the mix open and breathable without floating or breaking down like perlite. Calcined clay holds moisture and releases it gradually, smoothing wet-dry swings without sacrificing air space. Horticultural charcoal adds durable porosity and helps keep the root zone cleaner in high humidity. The result is a stable, breathable mix that supports a mildly acidic pH around 5.5–6.0, making high-humidity growing more forgiving as plants establish and mature.
Use for:
Begonia · Sonerila · Labisia · Marcgravia · Piper · Jewel Orchids · Most Tropical Understory Plants
Ingredients:
Fine Bark · Pumice · Buffered Coco Coir · Calcined Clay · Horticultural Charcoal
*MAY SHIP SEPARATELY FROM PLANT ORDER*
Estimated shipping date: To be calculated
Ships from: Santa Clarita, CA
Shipping fee: Free
Sales tax:
Returns and exchanges:
Communication
•
46
Quick shipper
•
41
Great packaging
•
49
Item as described
•
46
Understanding
•
31
Fair pricing
•
34
Friendly
•
43
On time meet-up
•
4
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Shipping fee:
Free
Ships from:
Santa Clarita, CA
Estimated shipping date: Mon/Tue/Wed
Ships from: Santa Clarita, CA
Shipping fee: Free
Sales tax:
Returns and exchanges:
Estimated shipping date: Mon/Tue/Wed
Ships from: Santa Clarita, CA
Shipping fee: Free
Sales tax:
Returns and exchanges:
Communication
•
46
Quick shipper
•
41
Great packaging
•
49
Item as described
•
46
Understanding
•
31
Fair pricing
•
34
Friendly
•
43
On time meet-up
•
4
Absolutely fantastic experience! Communication was great & packaging was the best I have ever received. Took great care and all my plants arrived in great condition. Will definitely be ordering from OddBloom again!!! 🫶🏻🫶🏻
Post on 6 days ago