Grassroots Living Soil Fabric Beds - Emulate Nature with MoistureLock™ Technology

Grassroots Living Soil Fabric Raised Beds | Happy Hydro Keep your soil biology alive between cycles, not starting over every run Grassroots Living Soil Fabric Beds use a BPA-free waterproof MoistureLock liner that covers the upper walls of the bed, leaving a 4" breathable aeration strip at the bottom. This forces water to move downward through the soil instead of escaping out the sides, mimicking the way soil dries in nature and keeping microbiology active throughout the root zone. Each bed ships with PVC corner fittings for a 1" PVC frame you source locally, and comes in sizes from 2x4 to 4x8 with optional trellis fittings. Made in USA BPA-Free Liner UV-Resistant Fabric Free shipping on orders over $49 30-day returns on all orders Serving growers since 2006 Gallery See how it goes together Side by side Standard fabric pots vs. Grassroots Living Soil Beds Standard Fabric Pots Soil dries from all sides, creating dry pockets and killing microbiology near the edges Fast wet/dry cycle forces more frequent watering and raises indoor humidity Round shape wastes tent floor space and limits plant count per square foot No built-in frame, so trellis requires separate hardware and improvisation Soil must be replaced each cycle because biology can't survive the dry-out Water runs out the sides and bottom, making a mess on tent floors Grassroots Living Soil Beds MoistureLock liner keeps moisture even throughout the soil, supporting microbiology edge to edge Slower, natural dry-down cycle means less watering, lower labor, and lower humidity Rectangular shape fills tent footprint efficiently with no wasted corners 1" PVC frame with optional trellis fittings for single or double trellis layers Soil stays alive between runs for true no-till growing, saving money on fresh soil each cycle Water is directed downward into the bed, keeping your floor and tent cleaner What makes it different Built for soil that gets better every cycle MoistureLock Liner BPA-Free A waterproof, chemically inert liner covers the upper walls while a 4" strip of breathable fabric at the bottom handles aeration and air pruning. Water moves downward through the profile instead of escaping sideways. Natural Top-Down Drying Pattern Soil dries from the surface downward, the same way it works in the ground. This keeps fungi, bacteria, and beneficial organisms active in the root zone instead of dying off at the edges. 4" Aeration Strip for Air Pruning The bottom section of breathable fabric promotes oxygen exchange and prevents root circling, so you get the drainage benefits of fabric pots without the side-drying problem. Sized to Fit Standard Grow Tents The 2x4 fits a 2x4 tent, the 3x3 goes in a 4x4 tent with room for a drain tray, and the 4x4 fits a 5x5. All beds are 18" tall, leaving headroom for lights and canopy. Optional Trellis Fittings Included Choose "With Trellis Fittings" to get 4-way PVC connectors that let you build single or double trellis layers right off the bed frame. No extra hardware to buy or rig up. Marine-Bonded Construction Bottom seam is sewn on the outside with marine-bonded thread to prevent rot. Top edges are triple-hemmed. The fabric is UV-resistant, machine washable, and folds flat for storage. Specs Dimensions and details by size 2x4 Bed 22" x 46" x 18" 3x3 Bed 33" x 33" x 18" 4x4 Bed 46" x 46" x 18" 4x8 Bed 46" x 94" x 18" PVC Frame 1" Schedule 40 PVC (not included, source locally) Fabric USA-made geotextile, UV-resistant, BPA-free, machine washable Origin Made in USA Construction Triple-hemmed top, marine-bonded outside bottom seam View assembly instructions on Grassroots website How to set up your Grassroots bed 1 Cut your PVC Pick up 1" Schedule 40 PVC from any hardware store. The 2x4 needs four 1.5' verticals, two 2' pieces, and two 4' pieces. Grassroots provides exact cut lists for each bed size on their website. 2 Assemble the frame Push the PVC pipes into the included 3-way fittings (basic) or 3-way plus 4-way fittings (trellis version). No glue needed. The friction fit holds firm once the bed is filled with soil. 3 Slip the fabric over the frame Drop the fabric bed over the assembled PVC frame. The fabric sleeves slide over each pipe. Position the bed in your tent or growing area before filling, because it gets heavy once there's soil in it. 4 Fill and plant Fill with your living soil mix, leaving 3 to 5 inches of headroom for mulch and top dressing. For starting plants, dig a hole in the soil and fill the pocket with a seed-starting mix rather than seeding directly into the soil. In the box What ships and what you'll need Included with every bed Grassroots fabric bed with MoistureLock liner sewn in PVC corner fittings (3-way for basic, plus 4-way for trellis) PVC end caps (for non-trellis setups, prevents bugs and soil entry) Assembly instructions Sizes and options Sizes: 2x4, 3x3, 4x4, 4x8 (all 18" tall) Fittings: Without Trellis (basic) or With Trellis Fittings You will need: 1" Schedule 40 PVC pipe (available at any hardware store) Not sure which size fits your tent? The 2x4 bed fits a 2x4 tent. The 3x3 fits inside a 4x4 tent with room for a drain tray. The 4x4 goes in a 5x5 tent. Call us if you need help: 716-217-0353 / help@happyhydro.com Questions Frequently asked questions Do I need to buy PVC pipe separately? Yes. This listing includes the fabric bed and the specialty PVC corner fittings that you can't find at a hardware store. You will need to buy standard 1" Schedule 40 PVC pipe locally and cut it to length. Grassroots provides exact cut lists for each bed size on their website. If you want everything in one box with PVC included, check out the Grassroots Complete Kit beds instead. What's the difference between basic fittings and trellis fittings? Basic fittings come with 3-way PVC connectors at each corner. That gives you a stable rectangular frame, but no vertical posts. Trellis fittings add 4-way connectors that let you run PVC upward from the corners to support one or two layers of trellis netting. If you think you might want a trellis later, go with the trellis fittings now. Adding them after the bed is full of soil means disassembly. Can I use these beds with salt-based nutrients, or only living soil? The MoistureLock liner is designed for living soil because it slows the wet/dry cycle and keeps moisture even. If you're running salt-based fertigation, you generally want faster dry-back, which standard fabric pots handle better. These beds are optimized for organic, no-till, and living soil methods where consistent moisture supports soil biology. How much soil do I need to fill each bed size? Approximate soil capacity when filled to within a few inches of the top: the 2x4 holds around 55 to 60 gallons, the 3x3 holds around 70 to 80 gallons, the 4x4 holds around 130 to 150 gallons, and the 4x8 holds around 270 to 300 gallons. Leave 3 to 5 inches of headroom for mulch and top dressing. These numbers assume the fabric sides flex inward slightly under soil pressure, so actual capacity is a bit less than a rigid box of the same dimensions. Do I need a drain tray underneath? A drain tray is recommended, especially indoors. The MoistureLock liner prevents most side runoff, but the breathable bottom strip will still let some water through during heavy watering. Grassroots suggests placing the 3x3 bed inside a standard 4x4 plastic drain tray, and the 4x4 in a 5x5 tray. For the 2x4, most growers use a standard 2x4 tent tray. How long do the beds last? Growers commonly report 3+ years of continuous use with no degradation. The fabric is UV-resistant and machine washable. The marine-bonded thread on the bottom seam resists rot from prolonged soil contact. If you break down your bed between cycles, wash the fabric on a cool cycle and air dry. Do not tumble dry. What if my bed arrives damaged or I change my mind? If you receive a defective or damaged unit, email us a photo at help@happyhydro.com and we'll make it right immediately: replacement or refund, your call. For change-of-mind returns, we accept returns within 30 days for items in new, resalable condition. If you're not sure whether this product is right for your setup, call us first at 716-217-0353. We'd rather answer your questions before you order. Why should I buy this from Happy Hydro instead of somewhere else? Happy Hydro has been selling growing equipment since 2006. We've carried Grassroots for years because the systems work great and customers who buy them leave happy. Have questions before you order? Call 716-217-0353 or email help@happyhydro.com. We're easy to reach and happy to help! Questions? We're easy to reach. Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy. 716-217-0353 help@happyhydro.com