at the end of last summer, when i first moved into my new garden in NYC, i took a nice rhododendron from my sister’s on LI and put it in a rather shady spot under an enormous magnolia grandiflora. since it was the first thing i, the novice, planted i didn’t do a very good job. rather than being elevated slightly above the soil, it is definitely somewhat submerged, especially since the land tends to slope down towards it. after planting & mulching it in my poorly draining clay soil, it promptly lost most of its leaves. this year it didn’t flower but has recently started growing new leaves.
my question is this: would it be a good idea to uproot it and replant it so that its rootball is slightly elevated? if so, when would be a good time? and any tips on replanting it are appreciated too!