Specialty Gardening: Why is my marguerite sweet potato vine more yellow?, 0 by cindyeo

cindyeo wrote:
I've been saving the same sweet potato vine for several years now, I take several cuttings in the fall and grow them in pots in the house, and use them again the next summer in my containers outside. This winter the cuttings did not do well, but most survived and finally started filling out when I replanted them outside. But I notice now that the leaves are more yellow than they ever used to be. Anyone have any ideas why? Do you think it's a lack of fertilizer? I did put some plant tone in the pot about a week ago. The first photo was taken this morning, the second one was a pot from 2 summers ago, but the exact same mother plant.