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Where to Plant
Plant in an area that receives full or half day sun.

Soil Preparation
When planting an individual plant, use the following:

  • 1/4 cu. ft. Omni Organo Soil
  • 3/4 cup Soil Sulfur
  • 3 tbsp. Osmocote Slow-Release Fertilizer

When planting beds, use the following (per 100 sq. ft.):

  • 12 bags of 1 1/2 cu. ft. Omni Organo Soil
  • 2 lbs. Soil Sulfur
  • 5 lbs. El Toro Flower and Vegetable Food


Feed before bloom (February) and after bloom (April/May) with the following:

  • 3 lbs. El Toro Flower and Vegetable Food
  • 2 lbs. Triple Super Phophate per 100 sq. ft.


Iris varieties differ in their growth rate, so a clump should be divided when it becomes too crowded in the fall (September/October). This needs to be done early for some; others can go for three years. Usually the best bloom is in the second year of a clump.

Harlow Gardens
5620 E. Pima St., Tucson, AZ 85712
(520) 298-3303