|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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