DISTANCE TO PLANT APART
Posted by Bonnie Hadaway on
Generally iris are planted from 8 to 24" apart depending on the type. Smaller dwarf or median iris can be planted closer together, while the taller ones need to be set further apart. Just remember that the closer together you plant, the more often you will have to divide. One can plant 3 rhizomes of the same variety for an immediate effect. Place the toes of the rhizomes to the center of the clump. Space clumps 20 - 24" apart.