Bulbs also grow best in sandy loam that has five to ... If you have clay-heavy soil with poor drainage, you can try planting your bulbs on a slope or in a raised bed and mix organic material ...

West of Spokane, soils are a mix of Palouse loam and the remnants of the glacial ... boulders fill the valley floor while the hillside are often a clayey sandy soil formed from the ancient ...

they found the weather and local geology had combined this organic mulch with sand and silt to form a nutrient-rich type of soil called loam. It gave Iowa one of the most fertile soils on the ...