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Following is a list of the types and preferences of perennial species commonly grown in our area and readily available at local nurseries. The first four columns should be self-explanatory.
Under the Sun column are the optimum light exposure levels the particular plant species requires. Full Sun is equivalent to 6 or more hours of direct midday sun. Partial sun is equivalent to 2-4 hours of direct midday sun. Shade is equivalent to no direct midday sun, although early morning and late afternoon light are all right.
Perennials generally prefer rich, well-drained (rwd) soil high in organic matter; other soil preferences should be self-explanatory.
Under the "Water" heading the term "moist" denotes daily watering in dry periods, likewise "average" denotes watering every three days, and "dry" denotes weekly watering when necessary.
Relatively few Perennials have special pH requirements and will grow in our soil without soil amendments. Those denoted as "acid" should have a tablespoon of Sulphur or Aluminum Sulphate mixed into the soil at planting time and once a year thereafter. Those given as alkaline (alk) should have a tablespoon of lime added at planting and an annual dose thereafter for optimum performance.
As a general rule most species should be divided every three to four years to maintain vigorous blooming. All dates are calculated for our area.
Have a beautiful growing season!