Bought potato plants--already flowering
Today I bought two pots of potato plants, and I'm hoping someone can tell me whether I'm likely get any reasonable yield.
One is a Fingerling variety that had many stems (about 1.5 feet) in a 5 lb tub; I separated this into 4 sections and planted them in a half-barrel that has sun until about 3:30 p.m.
The second one is a "Russian Blue" variety with 5 stems (about 2 feet) in a 3-gallon pot. When I got home I realized this one already had flowers forming. I pinched them off, separated the clump, and planted this in a half-barrel that gets sun until about 4 p.m.
On both root balls I noticed cherry-sized potatoes forming. I planted them deeply and heaped about 5 inches of soil on top of each. How likely is it that the plants will actually produce a reasonable yield? And is there anything you would advise me to do to help these plants do well?
Many thanks in advance for any thoughts!