#12 Container Gardening

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Containers for Urban Farming

Like raised bed gardening, container gardening is an above-ground technique.  Containers come in a variety of forms, are typically smaller than raised beds, and allow for the planting of only one of a few plants, and are easily portable.  Containers are also often used with soilless growing mediums, such as potting mixes.  Container gardening shares many of the benefits of growing in raised beds.  It allows urban farmers to manage soil contamination and plant atop blacktop, concrete, or other spaces unsuitable for in-ground production.  Given the portability of containers, container gardening also allows farmers an option for dealing with temporary land tenure.
Additionally, urban farmers can tap into the urban waste stream to yield a myriad of affordable container options.  Riverpark Farm in Manhattan, for example, grows food for the Riverpark Restaurant in recycled milk crates.  Other urban farms are planting in plastic wading pools or recycled wooden pallets.
In New Jersey, Garden State Urban Farms maintains an entirely portable farm by planting in EarthBoxes, a commercially developed container gardening system that claims to double the yield of conventional gardens.  For more information about EarthBoxes, see the company website at http://www.earthbox.com/.
Sole Food Street Farms in Vancouver, BC has developed a system of containers that can be moved with a pallet jack or forklift for easy reconfiguration of urban space while eliminating contact with pavement and contaminated soils: http://solefoodfarms.com/how-we-grow/

Container Considerations

When choosing a container type, three main considerations are volume, drainage, and material.  All containers should allow adequate drainage, without draining too quickly.  For volume, the bigger is typically the better, and farmers must take into account the root depth of their crops.  For materials, and particularly when using recycled or salvaged containers, it is important that they contain no toxic substances.  Painted or treated wood, plastic containing solvents or high-density polyethylene (HDPE), and metals should be avoided.

Extension Resources

The Iowa State University Extension offers a two-page factsheet on container vegetable gardening, including suggested cultivars for container production, available for download at https://store.extension.iastate.edu/Product/Container-Vegetable-Gardening.
Cornell Cooperative Extension of Rockland County also offers a factsheet on container gardening, including information on fertilizing and potting mix recipes, at http://rocklandcce.org/resources/outdoor-container-gardening.
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Tara Hammonds

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1 Comment

  1. Avatar of Danny Danny on March 5, 2023 at 8:42 am

    Great informative article, to take it one step further, shipping container farms can use energy efficient LEDs, use less water, less soil, no pesticides, aren’t at the mercy of being seasonal and have the capacity of 2 acres of farmland within a confined space, more so the containers are portable and a reusable resource.

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