Best Coco Coir Bricks for Indoor Plants That Hold Moisture
Written by Lena Moss – Indoor gardener, soil nerd, and proud plant-saver
Indoor plants need more than just love—they need the right soil, too. Especially when it comes to moisture. If you’ve ever had a crispy fern or a drooping pothos, you know how tricky it can be to get watering just right. That’s where coco coir bricks come in.
As someone who has turned a second-story apartment into a full-blown jungle, I’ve tested countless soil mixes, amendments, and sustainable options. And hands down, the coco coir bricks I’ve gone back to again and again are the Legigo Organic Coco Coir Bricks.
They’re everything you want in a plant-friendly medium: 💧 excellent moisture retention, 🌱 zero junk additives, and ♻️ totally eco-friendly. For apartment dwellers, houseplant lovers, and beginner growers, these little bricks solve a bunch of soil struggles without the mess or guilt.
So let’s dive deep into what makes these coco coir bricks the best choice for indoor plant lovers who care about both plant health and planet health. 🌍
What Are Coco Coir Bricks Anyway?
Coco coir bricks are made from the fibrous husks of coconuts. When compressed into brick form, they’re easy to store, ship, and handle. Once you add water, they expand into a spongy, fibrous substrate that can be used alone or mixed with potting soil.
They’re ideal for:
- Keeping moisture levels steady
- Improving drainage and preventing root rot
- Boosting soil aeration
Unlike peat moss, which is often criticized for being unsustainable, coco coir is a renewable byproduct of the coconut industry. That alone makes it a win in my book.
Why Moisture Retention Actually Matters for Indoor Plants
Indoor plants live in our climate-controlled homes, where dry air is the norm. Whether your plants sit on a windowsill, shelf, or humidifier-free corner, they’re often battling dryness.
The Legigo Coco Coir Bricks hold onto water incredibly well without waterlogging your roots—think sponge, not swamp. Here’s why that’s key:
- 🌿 Consistent moisture keeps roots healthy and stress-free.
- 🪴 Less frequent watering = easier for busy or forgetful plant parents.
- 🌱 Helps propagate cuttings, seedlings, and moisture-loving plants like ferns and calatheas.
I use it regularly under my Monstera, with my trailing pothos, and for growing mint and basil on the kitchen counter. It’s changed the game.
Why I Love the Legigo Organic Coco Coir Bricks 🧱
Here’s what makes Legigo Organic Coco Coir Bricks a standout:
- 🌿 100% Natural – No synthetic additives.
- 💧 Moisture Rich – Keeps water where your plants need it.
- 🔄 Expands Substantially – One brick goes a long way.
- 🪴 – Easy to store in closets, sheds, or garage corners.
- 🌍 – Grown thoughtfully and compostable.
You can grab it directly here:
How to Use Legigo Coir Bricks (It’s Easier Than You Think)
I’ve had messy soil days. But these bricks are a breeze.
Follow these step-by-step instructions (it usually takes under 10 minutes):
- Place one brick into a large container (basin, bucket, storage tote, etc.)
- Add warm water slowly. Start with 1 gallon. The brick can absorb around 8 times its weight.
- Let it sit for about 10–15 minutes.
- Fluff it with your hands or a garden trowel.
- Mix into your potting mix or use it as-is depending on the plant.
✅ Pro Tip: I like mixing a 50/50 ratio of coir to regular houseplant soil for a lightweight, well-draining blend.
Comparison: Legigo vs Other Popular Coco Coir Brands
I’ve tested a few of the top brands to see how Legigo stacks up. Here’s what I found:
| Feature | Legigo Organic Bricks | Burpee Organic Brick | Mother Earth Coco Plus | Viagrow Coir Bricks |
|---|---|---|---|---|
| Format | 10 compressed bricks | Single compressed brick | Pre-loose substrate | 3 compressed bricks |
| Moisture Retention | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ |
| Sustainability | High | OMRI Listed | Triple washed | OMRI Listed |
| Price per Volume | Affordable | Mid-range | High | Budget |
| Ease of Use | Super simple | Simple | Already loose | Somewhat messy |
Legigo’s value-to-performance ratio makes it a no-brainer, especially for small-space growers like me who appreciate compact supplies.
Best Plants to Use With Coco Coir
Not every plant thrives in soggy soil. But coco coir gives you moisture without risk of rot. Here’s what grows best in it:
- 🌵 Succulents and cacti, when mixed with perlite
- 💦 Ferns and calatheas, which love steady drinks
- 🍃 Pothos, philodendrons, and monsteras, strong root systems
- 🌱 Seedlings and propagation cuttings
I also use it to start herbs indoors. Mint, parsley, and basil LOVE it. My kitchen window sill has never looked greener.
Sustainability Matters 🌎
One of the reasons I’ve shifted most of my indoor gardening routine to coco coir is because peat moss is not a renewable product. According to the Royal Horticultural Society, harvesting peat contributes to loss of critical wildlife habitats and carbon releases source.
Coco coir, on the other hand, is a byproduct of coconut processing. The Legigo bricks are also biodegradable and compost-friendly, meaning after your plants thrive, the leftover medium can feed your compost pile—not a landfill.
What Do Other Gardeners Say?
Here’s a peek at what gardeners love about the Legigo pack:
⭐ “Way more than I expected from one brick! This thing just kept expanding. I filled six 5-inch pots with one soaked brick.”
⭐ “Perfect for my indoor jungle. My plants stay moist longer, especially helpful since I sometimes forget water day.”
⭐ “Easy to work with, even for beginners. I mix mine into potting soil and my plants are thriving.”
And of course, no product is perfect:
❌ “One of the bricks didn’t expand well.”
❌ “Found a tiny piece of plastic in one brick. Otherwise great.”
From my experience using over 30+ bricks across houseplants and herbs, quality is typically consistent.
Pros and Cons Summary
✅ Pros:
- 100% natural and biodegradable
- Retains moisture without waterlogging roots
- No need for large bags of soil cluttering your space
- Easy to hydrate and mix
- Affordable for 10 bricks
❌ Cons:
- Batch quality can vary slightly
- Slow hydration if not broken apart first
- Not OMRI certified (still organic, but without the official seal)
Who Should Definitely Use These Bricks?
If you check off any of these boxes, these coco coir bricks were made for you:
- 🏢 You garden indoors and want mess-free soil options.
- 🌱 You start seeds or propagate cuttings often.
- ❤️ You care about eco-friendly gardening practices.
- 🪴 You grow tropical houseplants, ferns, or herbs.
- 🧂 You hate heavy, salt-heavy, or chemically-treated soil additives.
The compact 10-pack is ideal for those with limited storage. It keeps things tidy and makes prepping potting mix quick and almost fun.
👉 If you’ve never tried it—this is beginner-friendly and super forgiving.
Final Thoughts: Let Your Indoor Garden Thrive with Coco Coir
Choosing the right growing medium can be the turning point in your plant parenting journey. The Legigo Organic Coco Coir Bricks offer a sweet spot of affordability, functionality, and sustainability.
Whether you’re a first-time plant owner or a certified houseplant hoarder (raises hand 🙋♀️), these bricks are my go-to solution for keeping moisture levels happy and roots healthy—without chemicals, mess, or guilt.
Ready to give your soil a sustainable upgrade?
For the lushest, healthiest, and happiest houseplants—this eco-friendly soil booster is worth its weight in coconuts. 🌴
With you in plant-filled joy,
🪴 Lena Moss
Indoor Gardener | Sustainability Advocate | Soil Enthusiast