AutoPot XXL Grassroots Fabric with Handles for Living Soil

★★★★☆ 4.0 66 reviews

US$4.80
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US$4.80
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Free shipping Free 30-day returns

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Management number 250625368 Release Date 2026/09/17 List Price US$4.80 Model Number 250625368
Category

Run living soil in your AutoPot XXL with a pot that actually fits

The Grassroots AutoPot XXL pot is a 16-gallon fabric container built to the exact dimensions of the AutoPot XXL Module tray. It measures 17" in diameter and 18" tall, with an 8" MoistureLock living soil liner sewn inside, reinforced handles on both sides, and a bottom seam designed to sit flat on the XXL capillary mat. If you've been trying to make standard fabric pots work in your XXL trays, this is the purpose-built solution.

Made in USA BPA-Free Liner Handles Included
Free shipping on orders over $49
30-day returns on all orders
Serving growers since 2006
Generic fabric pots vs. Grassroots AutoPot XXL pot
Generic Fabric Pots
  • Wrong dimensions for the XXL tray, gaps around the edges affect wicking
  • Soil dries from all sides, working against the sub-irrigation system
  • No handles, so moving a pot full of 16 gallons of wet soil is difficult
  • Bottom seam sits unevenly on the capillary mat
  • Fast dry-back cycle is the opposite of what living soil needs
  • Thin fabric breaks down faster with constant moisture contact
Grassroots AutoPot XXL
  • 17" diameter fits the XXL Module tray with full capillary mat contact
  • 8" MoistureLock liner retains moisture, complements sub-irrigation wicking
  • Two reinforced handles for repositioning full pots
  • Internal bottom seam sits flat for consistent wicking across the mat
  • Slow, even dry-down supports living soil biology
  • Heavy-duty USA-made geotextile with marine-bonded thread
A living soil pot built for AutoPot sub-irrigation

Built for the XXL Module Tray 16 Gallons

17" diameter and 18" tall, sized to sit inside the AutoPot XXL Module tray with full contact on the capillary mat. No gaps, no workarounds, no improvising.

8" MoistureLock Living Soil Liner

Waterproof, BPA-free liner covers the lower portion of the pot walls, directing water upward into the soil mass rather than letting it escape out the sides. Works with the capillary mat wicking from below.

Reinforced Handles

Two sewn-in handles make it possible to lift and reposition the pot even when it's full. At 16 gallons of wet living soil, that's well over 100 lbs, so the handles are reinforced at the attachment points.

Breathable Upper Section

Above the liner, the pot walls are standard breathable fabric for gas exchange and air pruning. Roots get oxygen at the surface while the soil mass below stays consistently moist.

Gravity-Fed, No Electricity

When paired with the AutoPot XXL system, the AQUAvalve delivers water on demand using gravity alone. Fill your reservoir and let the system handle watering while you focus on the plants.

Marine-Grade Construction

Internal bottom seam with marine-bonded thread. The flat bottom profile ensures even contact with the capillary mat across the full diameter.

AutoPot XXL pot details
Diameter
17 inches
Height
18 inches
Soil Capacity
16 gallons
Liner
8" BPA-free living soil liner
Compatible With
AutoPot XXL Module Tray and Lid
Handles
Two reinforced fabric handles
Fabric
USA-made geotextile, UV-resistant
Origin
Made in USA

How to set up the Grassroots XXL pot

1

Set up the XXL Module tray

Install the AQUAvalve in the AutoPot XXL Module tray. Place the capillary mat and root control sheet inside the tray, then connect the tray to your reservoir.

2

Place the pot in the tray

Set the Grassroots pot inside the XXL tray. The 17" diameter should sit flat on the capillary mat with full contact across the bottom.

3

Fill with living soil

Add your soil mix to the pot. For transplanting, dig a hole in the soil and fill the pocket with seed-starting mix rather than planting directly into the bed soil. Leave a few inches of headroom for mulch.

4

Fill the reservoir

Top off your reservoir and let the AQUAvalve manage water delivery. The capillary mat wicks water up through the breathable pot bottom while the MoistureLock liner keeps moisture from escaping the sides.

What ships and what you'll need
Included
  • Grassroots 16-gallon fabric pot with 8" MoistureLock liner
  • Two reinforced handles
Sold separately
  • AutoPot XXL Module: tray, lid, AQUAvalve, capillary mat, root control sheet
  • Reservoir: for water supply
  • Living soil: approximately 2 cubic feet per pot
Need help pairing this with an AutoPot system? We carry AutoPot XXL modules and reservoirs. Call us and we'll put together the full kit: 716-217-0353 / help@
Frequently asked questions
No. This listing is for the Grassroots fabric pot only. You will need the AutoPot XXL Module tray, lid, AQUAvalve, capillary mat, and root control sheet, plus a reservoir. Those are sold separately.
Standard Grassroots pots don't have the same diameter or flat bottom profile as this one. They'll sit in the tray, but you won't get consistent capillary mat contact, which means uneven wicking. This pot was specifically designed for the XXL tray dimensions.
16 gallons is a good volume for living soil, especially with sub-irrigation keeping the moisture consistent. The AQUAvalve prevents the dry-out cycles that stress biology in smaller containers. Many successful no-till growers run in the 10 to 20 gallon range with good results.
The 8" liner is sewn inside the lower portion of the pot walls. The bottom itself is breathable fabric for capillary mat contact, and the upper walls above the liner are also breathable for gas exchange. Water wicks up from the mat, hits the liner, and is directed inward into the soil mass rather than escaping out the sides.
You can, but it's designed for the XXL tray dimensions. If you just want a standalone living soil pot with MoistureLock, the standard Grassroots Living Soil Pots come in sizes from 3 to 200 gallons and will work better outside of an AutoPot system.
If you receive a defective or damaged unit, email us a photo at help@ 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.
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@. We're easy to reach and happy to help!

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