u/Hufflepuff77

Zone 9B

Noticed the leaves on my plant starting to get a little light green around the edges with a spot here or there. Any idea what’s going on? Pretty new to plants and trying to learn a lot in my first year of home ownership. Some details and context below.

Luna hibiscus that was planted in May. Has grown significantly and is about to throw out its third round of blooms. Plant is located in an area that is pretty shaded but gets a couple hours of good direct sun. Gets hit with the sprinklers for about 8 minutes three times a week.

Bought a house with some old windows that we anticipate replacing next year.

Is it a good idea to go ahead and seal up the space between the brick and the metal frame in the mean time with GE advances silicone clear window and door caulk?

Pulled off the old doorbell to install a SimpliSafe doorbell. Discovered this nice little void that has been drilled out on the siding.

The white part is the new backing for the doorbell. What would you do to make sure the screws have something to hold the mounting bracket in place?