planting - Knowledgebase Question

Charlotte, No
Question by pvtdect44
February 2, 2010
I have hard clay in my backyard. Its hard to plant anything. Is there any landscaping plants/shrubs that will grow there and how do I break through


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Answer from NGA
February 2, 2010

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Clay soil can be a real nightmare! You can begin, on a small scale, to improve the soil by working in lots of compost or other organic matter. Choose flower or vegetable beds that you want to plant this year and spread a three or four inch layer of mulch on top. Work it in to a depth of at least six inches, deeper if you can. Continue to do this year after year to help "fluff" up the soil. If you start small, in beds you plan to use immediately, you can spread your soil improvement efforts throughout the yard over several growing season. Persistence will pay off and eventually you'll have a loamy-type soil that will drain well yet hold important nutrients and moisture. Adding Gypsum may help break up the clay. If all of this sounds like too much work, you can always garden in raised beds on top of your tough soil! Here's how: Loosen and turn the native soil under the planting area, then use lots of organic matter (compost, rotted leaves, aged stable manure and bedding, etc.) and a bit of sand to increase the volume. Mix them together as best you can and plant into that. For annuals, a six inch height should be ample, for perennials you might want to go a bit higher. Over time, you will find that the soil in these areas is much improved, particularly if you add additional organic matter regularly. Using an organic mulch such as shredded bark will also help to feed the soil as it breaks down. If you are still unsure, plant annuals this year and then add lots of organic matter again this fall in preparation for planting perennials next year.

Some plants suitable for growing in clay soils include Alpine Currant, Honeysuckle,
Siberian Peashrub, Arborvitae, Lilac, Snowberry, Chokeberry, Ninebark, Arrowwood, Viburnum, Redtwig Dogwood, Potentilla, and Highbush Cranberry Viburnum.

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