No you do not need to buy lights. Everything you have planted except the Tomatoes and basil are perennials and should be fine. The basil and tomatoes could benefit from a little higher nighttime temperatures. You could cover the containers with a blanket at night and remove it in the morning.

I would bring the tomatoes and basil imnside at night until you have higher nighttime temperatures.

You also might want to transplant the tomatoes into separate containers so the roots don't get entangled. I use colored 16 oz disposable glasses which have holes punched in the bottom. Sink your tomatoes into the ground up to the leaves. They will grow roots all along the stem. This action is particular to tomatoes and nothing else.

I would say the plants aren't growing because of the nighttime temperatures. The perennials are slower growing and can tolerate lower temperatures but the basil and tomatoes are tenderer plants and could do with a bit extra heat at night

The best Shastas I have are ones that I took the pack of seeds and dumped them in the garden. They have been growing great for three years now. It probably wouldn't hurt to go ahead and plant the daisies. They are hardy and do best when left alone and not babied too much. I am not an expert just sharing my experience. I don't know anything about the rest if the plants you mentioned but I assume as long as they aren't getting leggy they just need some time and like the previous poster stated some more warmth at night.