Although I have been vegetable gardening for a number of years now, I am relatively inexperienced at growing perennials. Well I bought some perennials at Walmart thinking they were irises. I have one blooming now and it is definitely a gladiola. I know nothing about them except they are pretty.
I thought I heard or read somewhere that they are not winter hardy in New York and that the bulbs need to be dug up and replanted every year. Is this true? Where and how do I store them? Some general growing tips would be appreciated.