This fast-acting, compost-based probiotic powder is loaded with beneficial microbes and organic soil amendments to improve soil structure, balance pH, and enhance nutrient bioavailability. Whether you’re growing lush houseplants, leafy greens, or blooming flowers, this organic blend works both indoors or outdoors to build healthy roots, boost nutrient uptake, and increase foliage and blooms—naturally.
✅ Enhances soil bioavailability and promotes efficient nutrient absorption
✅ Balances pH and supports stronger root systems
✅ Boosts plant vitality, bloom production, and harvest yield
✅ Great for indoor plants, outdoor gardens, seed starts, and lawns
✅ Organic, non-toxic, and sustainably made in the USA
Mix into the top inch of soil every 4–6 weeks, then water thoroughly.
Safe for both indoor and outdoor plants. Great for potted plants, raised beds, and in-ground gardens.
4 oz container of Organic Houseplant Probiotic Powder
Secure screw-top lid
Simple directions and tips on the label
Formulated by and for plant lovers who know that fertilizer is just part of the equation. This powder mimics the rich, microbial life found in natural soil, helping you grow healthier, happier plants—naturally.
1. We operate on trust.
If a product isn't right for your plant, we'll refund you — no return required. No labels, lines, or plant parent stress.
2. Your personal Plant Rescue Squad.
Buying direct means you're not on your own. Reply to your order email with photos and questions, and our plant experts will help troubleshoot what's really going on — light, watering, soil, or something else entirely.
3. A timeline backed by confidence — and real results.
Most customers see healthy changes quickly. We offer 90 days because we believe in our products and want you to feel just as confident using them.
💚 Shop with confidence — We’re a small business that stands behind every product. Thousands of happy plant parents trust us, and we’ll always make things right if anything goes wrong. In addition to high quality products, we aim to provide seamless shipping and satisfaction-guaranteed service.
We ship to the U.S., Canada and the UK, and offer flat-rate pricing to keep things simple. Orders typically ship within 1 business day and arrive within 2-4 business days.
We stand behind our products 100%. If you’re not happy, we’ll make it right.
Return window: You have 30 days from delivery to request a return or refund.
What’s covered:
How to request a return or refund:
Email us at hi@houseplantresourcecenter.com with your order number and a quick description of the issue. We’ll respond within 1 business day.
Once we receive and inspect the returned item, we will process your refund within 7 business days. Refunds will be credited to your original payment method.
The following items are non-returnable:
If you have any questions or need further assistance, feel free to reach out to us at hi@houseplantresourcecenter.com. We're here to help!
★ ★ ★ ★ ★ 5.0
"I was skeptical, but my plants are so happy! My New Guinea impatiens now has lush green leaves and new growth. I’ve used it on several houseplants and can’t wait to try it on my outdoor pots."
★ ★ ★ ★ ★ 5.0
"Comes as a granulated powder that’s super easy to sprinkle over soil. My plants were already healthy, but this feels gentler and more natural than the blue liquid fertilizers."
★ ★ ★ ★ ★ 5.0
"At first it didn’t look like much, but wow—my aloes are more lush and verdant than ever! I’m even seeing buds for the first time in weeks. Easy to use and totally worth it."
★ ★ ★ ★ ★ 5.0
"This probiotic helped rescue my clearance fiddle leaf fig! With some TLC and this product, it bounced back and is now full of new growth. I’m officially a believer!"
★ ★ ★ ★ ★ 5.0
"My banyan tree lost nearly all its leaves after moving, but after adding these microbes and repotting, it recovered beautifully. I wouldn’t skip this step again."
★ ★ ★ ★ ★ 5.0
"It’s hard to tell with soil amendments, but I trust the science behind this. The container isn’t huge, but it’s a great way to boost soil health and support strong plants."
★ ★ ★ ★ ★ 5.0
"After two weeks, my houseplants exploded with growth and color! Leaves are more vibrant, and everything looks fuller and healthier. Definitely continuing with this."
★ ★ ★ ★ ★ 5.0
"I mix this into my watering routine for my 100-plant household—everything’s thriving! A simple but powerful addition to keep them growing strong."
★ ★ ★ ★ ★ 5.0
"I used this on my Blue Star Fern, Rubber Plant, Dracaena, and Snake Plant—now my snake plant sprouted its first pup ever! All my plants are healthier and growing faster."
★ ★ ★ ★ ★ 5.0
"Just sprinkle a little on the soil and water—it’s that easy. My plants look perkier, fuller, and much healthier after using this regularly."
★ ★ ★ ★ ★ 5.0
"After two weeks, my plants are sprouting new growth everywhere! They look lush, green, and vibrant—this really works."
★ ★ ★ ★ ★ 5.0
"This saved my last remaining houseplant! Within days of adding it, the color turned bright green and healthy again. I’d tried spikes before, but this actually works."
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