After the willow sent the birds on a nice long vacation, the Hogwartian was smart to step back. The willow got the strange pleasure of swing its branches and hitting things that come to close into its area. The branches swayed ready to send anything that came near on a long vacation. Hasta la vista!

What was the girl waiting on, Spring? The ingredient would still be there on branches even then. Branches swinging, snapping even more, quite impatiently. Almost as if a great freeze had frozen them solid. The tree then stopped moving. No snapping of branches, no movement, for the tree was completely immobilized. Now is the time to get your ingredients and start brewing your potion. No time to waste!