Small regular purple dots on my marigold seedlings

Dear MGs, could you please help me. I have started some marigold seedlings very early as part of my horticulture course assignment. They are very healthy looking, are growing under their very own grow light, and are even beginning to…

Growing London Plane Trees

I am trying to grow London Plane trees from seed taken from a tree in Boston. I managed to germinate some seeds last summer and have a nice 18″ specimen under grow lights as well as a second bunch that…