Irises - Knowledgebase Question

Roxbury, Ma
Question by lcoleman5360
March 24, 2010
Can I use something on my irises to perk them up this season? Thank you.

Answer from NGA
March 24, 2010


Irises can fail to thrive and bloom if they are overcrowded so you may only need to dig and divide them if they have been in the garden for 3-4 years. If they haven't been in the same spot quite that long, a layer of compost can help - it releases nutrients as it decomposes - or you can feed with a general purpose 10-10-10 garden fertilizer. Best wishes with your irises.

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