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extension.umn.edu/managing-soil-...-perennial-beds

  • A well drained, sandy loam soil with plenty of organic material is ideal for perennials.
  • Most soils need amendments for growing perennial flowers.
  • Compost, composted animal manure, peat moss and perlite are all commonly used organic materials.
  • Organic matter increases a sandy soil's ability to hold water and nutrients.
  • Organic matter improves a clay soil's structure, improves drainage and reduces stickiness.