Understanding Orchid Morphology

[MACH5]

Hello,

I'm a relatively newcomer to the world of orchids. I purchased a Catt from Lowes some time ago. I assume that the plant is doing well? I have included a few pics. I have the following questions:

1. In the first pic, there is a tan, dried up looking leaf in the center. Is this the sheath of a dormant flower spike? If so, how long before it comes up or is it done flowering?

2. The spike to the left seen on the second and third pic is a growth spike correct?

3. How long do the Pbulbs take to mature for flowering?







Thank you in advance for all your help