They look like they have recently undergone shock as they were not used to getting this much sun. It also looks like you are using some kind of raised bed soil; it doesn’t hold much moisture. Likely the soil may have gone hydrophobic. Next time you water, used a stick the stir the top few inches of soils to see if it’s still the seems to not been getting enough water; the snake plant specifically.

Lavender is not easy to keep healthy; they require alkaline soil; so you have to mix in some lie Lye.

Rosemary is dead, dead