I tried to search a bit but ran out of time to see if this was already answered. I purchased 10 rizomes this spring (2x5 varieties). My father-in-law and I have a planting bed ready to go and want to put them in the ground this weekend. Given the bed and number of varieties should we plant two rizomes in each “mound” maximizing the spacing or do we plant individual rizomes about 2 feet apart and then space 5 feet or so between varieties?
What will give us the best result for this experiment. We live north of the Twin Cities and our soil is sandy but we plan to add compost to the mounds.
Thanks for your wisdom in advance.