taldesta
Petunias seem to do better in a cooler climate like yours. My Dad's would be very full with healthy leaves like yours. Maybe he pruned them which I tend not to do other than occasionally knock off the old blooms. I had a couple that actually survived the winter and are blooming that I simply put the containers up against the house and water occasionally. So, I guess there are benefits depending on where you are.
When the time comes, I'll figure something practical out for the onions. I am essentially looking for 6" tall rectangular trays like you get plants at the nursery, but maybe a bit larger. I have a number of these plastic concrete mixing tubs that are heavy duty plastic and inexpensive.... they would work, but I would hate to cut holes in them. I use them to keep my indoor plants in so I don't have to worry about water getting on stuff and I can lift 6-8 pots at a time outdoors for a dose of sunshine if I choose to. Most of those plants are outside now anyway and the tubs are empty.
I am enjoying the tomato harvest while it lasts this year. The Patio tomatoes aren't large, but have been plentiful. One small tomato is sufficient for one sandwich without waste. Last year I seldom even ate a garden grown tomato, but with all the rain, they really didn't do well.
This year on rainfall at the house, we are at about 80% of the normal annual rainfall for my area and June is not quite finished. Other than one month, the rains have been consistent, But we did have a two-three week no rain period and the yard was beginning to suffer.
I hope your peppers do well. In my opinion, they do better in a cooler climate like the petunia observation. I enjoy watching them grow probably more than many of the other vegies.