| Copyright Pending 2007, The Casual Gardener, Inc., All Rights Reserved Privacy Policy By using this site, you agree to our Terms of Service. |
| DIRT! DIRT! DIRT! = = = = = = = = = = = = = Dear Casual Gardener, It’s Spring and I want to plant a garden for flowers. I have had trouble with the soil amendments for clay soil and want to know what I should add to my garden beds here in heavy clay soil that will help my plants grow. HELP! How do I get the right dirt? Signed, Soil Challenged = = = = = = = = = = = = = Dear Soil Challenged, Dirt! Dirt! Dirt! It’s become one of my number one questions. Here in central Illinois, particularly in the Chicagoland area, we have heavy clay soil, slightly or heavily alkaline, that can range from a medium brown color to almost black. The dark soil is indicative of lots of nutrients. That’s a positive. The negative? Trying to keep enough organic matter in the clay soil so it will be loose and easily allow roots to grow. I spoke with Doris Taylor, Plant Information Specialist from The Morton Arboretum’s Plant Clinic in Lisle, IL (www. mortonarb.org) regarding this question. Doris encourages the community to consult with the Plant Clinic anytime for all gardening questions. “We’re open during the months of April through October.” Doris says, “The Morton Arboretum recommends you ‘work with what you have’ and only add up to a 25% amendment to your soil”. A larger percentage of an amended material, or a complete replacement of the soil, will encourage root-bound perennials that do not want to grow outside the soil environment you’ve created. This might mean an unsuccessful garden as the plants need root growth to get bigger and stronger. To encourage strong plant growth into the native soil, add your favorite amendment, but only up to 25% of the mix should be “new”. Also, the right types of amendments allow aeration into the soil and encourage root growth. To encourage plant success, according to Doris, “roots need to spread!” There are many types of amendments, but the most common are compost (which you have hopefully made yourself), peat moss, rotted manure, mushroom compost, coffee grounds and cut sand. Doris stated, “We are now recommending against mushroom compost in perennial beds. Mushroom compost’s bi-product is leaving the soil with a very high sodium content, which is bad for the plants.” My personal favorite “trifecta” of amendments is rotted manure, peat moss and compost. I might also add something more to break up the soil and aerate it if it seems difficult to dig in – like small pebbles or large grained cut sand. Compost comes in many forms – you can make your own in a composter, you can add rotted leaves and leaf mold or you can purchase compost in bags. I hope this helps you get started with a good “base” to grow your plants in this spring season. Start planning those gardens! Happy and Healthy Gardening!!! Please send your gardening questions for Shawna Coronado, The Casual Gardener to dearshawna@thecasualgardener.com or The Casual Gardener, P.O. Box 358, Warrenville, IL 60555 |
| The Casual Gardener.com |
| The Casual Gardener Column |
| Copyright 2007 and 2008, The Casual Gardener, Inc., All Rights Reserved Privacy Policy By using this site, you agree to our Terms of Service. |