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You are here: Home / Article / Contour Gardening to Minimize Irrigation and Maximize Yields

Contour Gardening to Minimize Irrigation and Maximize Yields

Last Updated December 10th, 2020 by Amy 5 Comments

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Contour gardening is a way to use the land's contours to reduce irrigation and erosion, and maximize nutrients for abundant harvest yields. Here's what contour gardening is and how you can pull it off.

Contour gardening is a way to use the land’s contours to reduce irrigation and erosion, and maximize nutrients for abundant harvest yields. It’s a popular tool in permaculture gardens. Here’s what contour gardening is and how you can pull it off.

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Contour gardening is a way to use the land's contours to reduce irrigation and erosion, and maximize nutrients for abundant harvest yields. Here's what contour gardening is and how you can pull it off.

Photo courtesy of Michael Judd of Ecologia Design

The Roots of Contour Gardening: Contour Farming

As long as agriculture has been around, farming flat land has been the ideal landscape.

Gravity, after all, can turn a lovely hillside into a grueling challenge. As population densities increase around the world, however, global agriculture is being pushed from the flat prairie lands to less-than-ideal, sloping terrain.

Unfortunately, growing practices like tilling—which were appropriate on flat lands—have been transferred to the slopes. An inappropriate use of farming techniques the world over has caused an increase in soil erosion and an astounding loss of soil fertility.

Contour farming is a cultivation technique that, when used on gently sloping lands, can mitigate erosion and maximize the absorption of rain and nutrients before they rush down the slope.

For this technique, crops are planted across a slope following the natural elevation contour lines, rather than up and down the hill. When planted along the natural curve of the land, gullies and soil erosion are reduced.

In this way, water and nutrients can more easily infiltrate the soil, minimizing irrigation and fertilization needs. This technique of farming the contour lines can be used for both annual and perennial crops.

Contour gardening is a way to use the land's contours to reduce irrigation and erosion, and maximize nutrients for abundant harvest yields. Here's what contour gardening is and how you can pull it off.

Image courtesy of Carl Wycoff

For gardeners with less-than-ideal areas, the idea of contour farming has been adapted to the backyard scale. Enter contour gardening.

Let’s take a look at how contour gardening can be used on a small scale.

Contour Gardening in the Residential Yard

Garden berms built along the contour can hold vegetables, perennial fruits, or other crops. Try lining them with a stone or rock border, which looks attractive while reducing erosion and retaining moisture.

You might consider digging swale trenches in the pathways for even more water retention, depending upon the degree of the slope.

For areas that collect water, a raised planting berm along the contour offers an elevated gardening solution for plants that don’t do well in waterlogged soil. See: 12 perennial crops for wet soil.

Contour gardens create microclimates of sun and shade, creating diverse growing areas, and improving soil ecology and rainwater infiltration.

Read more about raised beds:

  • Are Raised Beds Right For You?
  • Gardening in Raised Beds on Pavement

Would you like to learn more about using the contour of your land to reduce maintenance and increase yield?

You’ll find loads of information just like this in my award-winning book, The Suburban Micro-Farm.

The Suburban Micro-Farm Book

How to Create a Contour Garden in 4 Steps

Contour gardening is a way to use the land's contours to maximize the use of available resources for abundant harvest yields. Here's what contour gardening is and how you can pull it off.

contour map showing elevation lines

1: Mark the elevation contour lines.

First, mark the elevation contour lines in the area where you intend to place your garden. Stakes or flags are handy for this.

I always keep a stock of them on hand!

An A-frame level is a simple, handmade tool that can help you identify elevation contour lines.

To see what an A-frame level looks like and how to use it, see the video in my article How to Construct a Swale.

2: Build a raised bed or outline a berm along the contour line.

Construct raised beds along a contour line at your desired length and width. Alternatively, outline the desired space for a raised planting berm with stakes or flags.

3: Sheet mulch the proposed garden area.

Before filling the raised bed or planting berm with soil, use a digging fork to aerate the existing soil. Then cover the existing ground inside the planting area with cardboard. Overlap the ends so that weeds can’t find any openings.

Now, fill the raised bed or form the berm with compost soil: homemade compost or store-bought compost soil.

You may have to import some soil, but to reduce costs you can layer purchased soil with other organic materials such as aged manure, worm castings, shredded and aged leaf mulch, and/or composted wood chips. The top 6 inches of the planting area should be compost soil.

See: How To Start a Garden on a Budget

Be sure to know the source of your compost and other “organic” materials to avoid herbicides, pesticides, and pharmaceuticals that persist in garden soil.

4: Fine-tune the contour garden.

If you’ve created a berm, line it with stones or rocks if desired. Let the new beds rest for at least two weeks before planting; three months is ideal. During this resting time, expect the soil to settle, so retain extra soil to add to the beds before planting.

For this reason, building a contour garden in the fall is a good strategy to have garden beds ready for spring.

Now you’re ready to plant! This will be an excellent growing area for both perennials and annuals alike.

Contour gardening is a way to use the land's contours to reduce irrigation and erosion, and maximize nutrients for abundant harvest yields. Here's what contour gardening is and how you can pull it off.

Image from Ecologia Design

Contour gardens reduce irrigation time, mitigate erosion, and retain nutrients on site for a highly productive and efficient garden.

Other Resources:

  • Edible Landscaping with a Permaculture Twist: How to Have Your Yard and Eat It Too
  • Gaia’s Garden: A Guide to Home-Scale Permaculture

Have you used the contour of your land to your advantage?

READ NEXT:

  • How to Kill Poison Ivy in 5 Steps
  • The Circle Garden for Productive Gardening
  • Front Yard Rainwater Catchment
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Filed Under: Article Tagged With: Permaculture Gardening, Water Management

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Comments

  1. Seth says

    October 5, 2015 at 3:04 pm

    Thanks for this illustrative, step by step on contour gardening, Amy. You’ve inspired me to try this approach this fall, as my property sincerely is contoured!

    Reply
    • Amy says

      October 6, 2015 at 2:27 pm

      I can’t wait to see what you come up with. I hope you’ll share the results 🙂

      Reply
  2. Jen says

    February 13, 2016 at 8:14 am

    These are beautiful photos!

    Reply
    • Amy says

      February 17, 2016 at 9:27 am

      I’m glad you like them 🙂

      Reply
  3. Blake Ragghianti says

    April 25, 2020 at 9:58 am

    Anyone who is interested in this should read Yeoman’s KeyLine Design… where all of these ideas come from.

    Reply

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Amy StrossHi, I’m Amy!

I'm the author of
The Suburban Micro-Farm:
Modern Solutions for Busy People
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Join me as I share my permaculture gardening adventures in the suburbs.

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