Japanese Iris Care - Knowledgebase Question

Daly City, CA
Avatar for matrixav1
Question by matrixav1
November 16, 1998
I have four Japanese iris in containers. They are on a drip irrigation system. The color has turned to yellowish green from the original dark green. Our water supply is high in chlorine. Would that be the cause and if so, is there a way to compensate?

Answer from NGA
November 16, 1998
Japanese iris generally go into a natural resting period in the fall and winter months. It's likely that the foliage is withering and dying because of this. While chlorine can effect plants, it's probably not affecting your iris. After the foliage has died down, cut it off at soil level. New leaves will sprout when the rhizomes have finished their rest period.

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