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I am brand new to growing German Iris. I live in the St. Louis County suburb Olivette in MO (Zone 5B). This past spring I started my first bed. The grew well, bloomed well, and now we are quickly approaching the Fall Season. I read somewhere on someones blog that Iris should be fertilized twice a year...does that mean the Spring and the Fall? What would they like to be fed with and when should I do it? Also, should I be making a plan on how to Winterize them. It feels like their partially exposed bulbs would get cold this Winter without putting mulch over them or am I supposed to pull them up and store them for next years planting. I have never cared for these plants in this climate before so I really don't know what to do.
Thanks in advance
Susan :-)
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