
The seed this week is showing that it is ready to grow.

Edit:Â The answer is up here.
Ready to find out what the mystery seed of week 7 was?
It was the seed of the northern catalpa, Catalpa speciosa.
These trees have big, heart-shaped leaves.

They are often grown for their big showy flowers.

Here’s a better look:

I believe there are a few southern catalpas (Catalpa bignonioides) in Arizona, but the northern catalpas from the photographs above are from upstate New York and Pennsylvania.
We have a tree that belongs to the same family growing in our yard, but that will be for another time.
We have some large, unusual looking insects in the Western United States:

But not many people see them because they are under the soil or under rocks.

They have a number of common names, but usually are called Jerusalem crickets (Family Stenopelmatidae). They are not true crickets, but have a similar lifestyle. They feed on decaying plant material in the soil, or possibly roots depending on the species.
This one was hiding under a rock.
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