As more and more people look to grow their food, container gardening is on the rise, especially in urban areas where space comes at a premium! Grow bags, in particular, are gaining popularity for their lightweight, eco-friendly qualities and the fact that they lead to significant yields in the garden. In his new book, Grow Bag Gardening: The Revolutionary Way to Grow Bountiful Vegetables, Herbs, Fruits, and Flowers in Lightweight, Eco-Friendly Fabric Pots, gardening guru Kevin Espiritu (founder of Epic Gardening) offers incredible tips and tricks to reap major rewards in the garden. Here, he fills Garden Culture in on some of his secrets!
Technically, YES! But there are a bunch of crops I’d advise against. Long-lived perennials like asparagus, for example, would simply be best grown in-ground or in long-term raised beds. Fruit trees are 100% possible, but only with correct bag selection and care (larger bags, 25-gallon minimum).
The magic of grow bags is in their air pruning benefits. Most containers cause root-circling as the roots grow ‘past’ the container but have nowhere to go. So they circle around and around, creating an unhealthy root structure. With grow bags, the root tips die when they reach the edge of the bag due to the porous structure and then cause the plant to grow a more fibrous, distributed root structure.
I think 7-gallon bags are a minimum for most crops as far as size goes. For quality, go with a trusted brand like Smart Pots. Something with thick material that doesn’t fall when you stand it up with no soil inside. Handles are a nice bonus, especially with the bigger bags.
Watering mistakes are the most common. The air pruning benefits of bags also mean water drains out quicker, so you have to be on top of it. Mulching with 2-3″ of grass clippings, leaves, etc., helps keep water in, but you’ll often have to up your watering frequency as compared to a traditional container.
You totally can mix in different plantings, though your selections are often best-grown solo! Pumpkins and tomatoes will do perfectly fine in their own bag. On your tomato, I might recommend planting something like lettuce or basil below once it’s matured, as you often prune off the lower leaves in those cases and can squeeze in a ‘living ground cover’ as a secondary planting.
I’m obsessed with POTATOES. I grow at least 100lb of them a year and store them, even in sunny San Diego. I’m also a huge fan of any and all root crops; the satisfaction of pulling them out cannot be beaten.
I always say, “Grow the #1 crop you’re MOST excited to eat.” The reason being, if you don’t care about it and are only growing it because it’s easy, then you’re not going to care if it dies. So while I do recommend easy crops like lettuce, herbs, etc…make sure you actually want to harvest and eat it.
Huge fan of luffa gourds. If you can get them going, they’re a prolific producer and allow you to harvest your own bath sponges. In one year, you should be able to grow enough to have sponges for a decade!
100%. I like to think of gaining skillsets as becoming “less bad” rather than “more good”, so if you seek to make mistakes, learn from them, and keep expanding your knowledge base, you’ll wake up a season or two later with a MUCH greener thumb.
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