Grassroots Raised Living Soil Bed by Nutrifield — MoistureLock™ Fabric Bed with Bottom Aeration Strip
GR-CON-RSDB-115x115
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Pairs well with
Wood rots. Cheap fabric dries out from every side. Grassroots cracked the code with their MoistureLock™ Raised Living Soil Beds — a USA-made fabric bed with a waterproof internal liner and a 4-inch bottom aeration strip that work together to mimic the way soil dries in nature. The result is a thriving soil food web, less time watering, and healthier roots from day one.
Note — Poles/legs not included. This listing includes the bed fabric and corner fittings only. You will need to source 1" schedule 40 PVC pipe from a hardware store, cut to size. Assembly instructions are available from Grassroots.
Why Living Soil Growers Choose Grassroots
The waterproof liner stops sidewall drying and directs water downward — no more dry pockets or uneven moisture. Soil stays hydrated the way nature intended: top to bottom.
Air pruning from below prevents root circling and encourages the branching root structure that living soil microbes love. Healthier roots, heavier yields.
A longer wet-to-dry cycle creates the stable, consistently moist environment that beneficial microbes, fungi, and bacteria need to thrive. Less watering, more biology.
Handcrafted in the USA from American polypropylene with marine-grade bonded thread. No BPA, no heavy metals, mould and mildew resistant, and machine washable between cycles.
No rot. No mould. No termites. No warping. Easier to assemble, lighter to move, and folds flat for compact storage between grows.
From the compact 55x115cm to the sprawling 120x485cm, there is a footprint for every tent, grow room, or backyard setup. All 45cm tall — the sweet spot for deep root development in living soil.
Specifications
| Brand | Grassroots (distributed by Nutrifield) |
| Origin | Made in the USA |
| Available Sizes | 85x85x45cm / 85x175x45cm / 55x115x45cm / 115x115x45cm / 115x245x45cm / 120x485x45cm |
| Wall Height | 45cm (all sizes) |
| Core Technology | MoistureLock™ waterproof liner + 4-inch bottom aeration strip |
| Fabric Material | American-made polypropylene geotextile |
| Thread | High-performance bonded thread (mould and mildew resistant) |
| Safety | BPA-free, heavy metal free, chemically stable |
| Frame Compatibility | 1" schedule 40 PVC pipe (not included) |
| Included in Box | Bed fabric + PVC corner fittings only (poles NOT included) |
| Care | Machine washable, folds flat for compact storage |
| Best For | Living soil, no-till, organic growing, indoor and outdoor use |
These beds need 1" schedule 40 PVC pipe cut to size — the corner fittings are included but the poles are not. Grab a few lengths from your local hardware store before your soil arrives. Check the Grassroots assembly guide for exact cut lengths per size. Don't let a $10 trip to Bunnings be the thing standing between you and your first living soil run.
Setting Up Your Living Soil Bed
- Grab your PVC pipe. Source 1" schedule 40 PVC from any hardware store. Use the Grassroots assembly guide to cut legs to your preferred height.
- Assemble the frame. Slot the included corner fittings onto the poles. No tools required — press-fit system throughout.
- Drop the fabric bed over the frame. The MoistureLock™ liner faces inward. Confirm the 4-inch aeration strip sits at the base.
- Fill with your living soil mix. A compost-heavy mix with active microbiology is ideal. Fill to within a few centimetres of the top.
- Mulch the surface. Add straw, leaf litter, or a cover crop to retain surface moisture and protect your soil microbes.
- Water top-down and trust the bed. The MoistureLock™ liner directs moisture evenly through the profile. Water less often than you think you need to — the extended wet-to-dry cycle is the whole point.
Pairs Well With
The biology your MoistureLock™ bed is designed to protect. A quality compost-based living soil is where it all starts.
Organic Nutrients and AmendmentsTop-dress with dry amendments or brew a compost tea to feed the soil life and keep your living bed firing every cycle.
Drip Irrigation and Water ControlA slow-drip or gravity irrigation setup pairs perfectly with the MoistureLock™ system — consistent top-down watering without daily hand watering.
Grow TentsMost sizes slot neatly into standard grow tents. Reduced sidewall evaporation also means lower ambient humidity — a genuine win for your environment management.
Frequently Asked Questions
Do I need to buy poles separately?
Yes. The poles and legs are not included. This listing comes with the bed fabric and the corner PVC fittings only. You will need to source 1" schedule 40 PVC pipe from a hardware store and cut it to size. Refer to the Grassroots assembly guide for exact dimensions per size.
What is MoistureLock™ and how does it work?
MoistureLock™ is a BPA-free waterproof liner sewn to the inside of the bed that prevents water from escaping through the sidewalls. Instead, moisture is directed downward through the soil profile — mimicking the way soil dries naturally in the ground. This extends the wet-to-dry cycle, reduces watering frequency, and creates the stable conditions that soil microbes need to thrive.
Can I use these beds indoors in a grow tent?
Yes — most sizes are designed to fit inside standard grow tents. A key benefit of the MoistureLock™ liner indoors is that it significantly reduces sidewall moisture evaporation, which lowers ambient humidity in your tent. That is a genuine advantage for growers managing VPD and indoor environment.
How are these different from a standard fabric pot or raised bed?
Standard fabric containers allow moisture to escape from the sides and bottom equally, which can create dry pockets and requires more frequent watering. Grassroots Living Soil Beds use MoistureLock™ to block sidewall drying while the 4-inch aeration strip at the base still delivers bottom airflow and root air pruning. Breathable where it matters, moisture-retaining where it needs to be.
Are the materials safe for food growing and edible plants?
Yes. All materials are BPA-free, free of heavy metals, and chemically stable. The polypropylene fabric and bonded thread are environmentally friendly and safe for edibles, herbs, vegetables, and any other crops.
Can these be reused across multiple grows?
Yes. The beds are machine washable and designed to last multiple seasons. They fold flat for compact storage between grows. No-till living soil growers often run the same bed for multiple cycles without fully breaking it down — which is exactly what these beds are built for.
Which size should I choose for my grow tent?
It depends on your footprint. As a general guide: 85x85cm suits a 1.0x1.0m tent, 115x115cm fits a 1.2x1.2m tent, 85x175cm and 55x115cm suit narrower rectangular tents, and the 115x245cm and 120x485cm sizes are aimed at commercial-style room setups or multi-plant layouts. Always leave a few centimetres clearance on each side for airflow.
Let Your Soil Do the Work
Living soil is a long game — but it starts with the right bed. Get your Grassroots Raised Living Soil Bed today and stop fighting your soil.