Agree with
stone; that could very well be a Hickory (
Carya sp.) seedling. The pinnate compound leaves are right. The "showy" (colorful) part of the buds peeled back (interior to and below the leaves) are certainly right.
Depending on where in Ontario Canada that
signet is gardening, there are several species possible (with 5 leaflet leaves):
**
Carya glabra
**
Carya laciniosa
**
Carya ovata
The showy bud (scales?) are such a great feature in and of themselves. Unsuspecting people think they are flowers, they are so colorful. I've attached examples below.
Looks like there could be more than one stem there, like someone cut the original plant off and a couple resprouts are now breaking bud and leafing out.
Need some additional images, especially side views of the whole plant(s) and at least one that shows the stems that those new leaves are growing from.