Potatoes in grow bags are the most reliable easy-win we've ever planted. No digging, no scab problems from heavy soil, and harvest is just lifting the bag. The right bag breathes (so roots don't circle), drains, and lasts long enough to use for two or three plantings. Here are the ones we use every year.
Our team’s top picks
Vivosun 7-Gallon Fabric Grow Bags (5-pack)
- 5-pack, true 25 L volume
- 300 GSM thick fabric
- Reinforced handles
- Best value at the price
iPower 5-Gallon Grow Bags (10-pack)
- 10-pack — bulk savings
- Honest fabric quality
- Great for first-timers
- Plenty of bags for a season
Smart Pot Big Bag Bed Mini
- 30+ years of fabric pot experience
- Pro-grade felt, BPA-free
- Reusable for many years
- US-made
Garden4Ever Potato Grow Bags with Window
- Velcro side flap for harvest
- 7-gallon size
- Two handles
- Smart design for kids
OPULENT SYSTEMS 20-Gallon Grow Bags
- 80 L volume per bag
- Handles serious yields
- Heavy 300 GSM fabric
- Reinforced bottom
What to look for in a grow bags for potatoes
- Fabric (felt) grow bags breathe and air-prune roots — best for potatoes.
- 40+ litres for early potatoes, 60+ litres for maincrop.
- A flap or window in the side genuinely helps when you want to harvest without lifting.
- Reinforced handles matter more than you think — a wet 60 L bag is heavy.
- Black retains heat (good for cool climates); fabric in lighter colours stays cooler in hot summers.
Frequently asked questions
How many potatoes per grow bag?
2–3 seed potatoes in a 25 L bag; 4–5 in a 50 L bag. Don't overcrowd — yield drops sharply if roots compete.
How often should I water grow bags?
Daily in summer for fabric bags — they breathe and dry faster than plastic pots. A good test: stick a finger 50 mm down. Damp = wait, dry = water.
Can I reuse grow bags for the next year?
Yes for 2–3 seasons. Empty, brush out, and store dry. Don't use the same bag for potatoes year after year — soil-borne potato pests can build up.
When do I harvest potatoes from a grow bag?
Early potatoes about 10 weeks after planting (the leaves yellow and flowers fade). Maincrop, 16–20 weeks. Tip the bag onto a tarp and hand-pick.
Bottom line
If you only take one thing from this guide, it is that quality matters more than spec on paper. The picks above have been chosen because our team uses them or trusts them — not because they are the most expensive or have the flashiest marketing. Buy once, garden often.
