Zinnia flower root formation!
I planted some Zinnia seedlings into pots last Spring and thought that I would pull them up so that I could plant some replacement seedlings. They wouldn't pull so I tipped the pots upside down and was surprised to find that the root balls had practically filled the pots up. I would welcome some comments on that because I've never seen anything like it before. If I had left the cut back Zinnia's alone would they have re-flowered?