Jennifer, not sure how long you will be vacationing, what kind of drainage you have in your soil and what the weather will be like the entire time you are gone but when I go on vacation, I err on the cautious.
I have all my semps planted outside in the early afternoon sun and when I go on vacation, I water
deeply right before I leave and then put a shade cover or frost covering over all my semps and then leave them covered entire time until I get back. I make sure the cover doesn't sit on the plants but above the plants so that there is air circulation. I put a heavier cover when weather is predicted to be very sunny and a lighter one (frost cloth), when the weather may be milder according to the weather predictions.
If you think outside is too risky and you choose to leave them inside the house, then right before you leave, do a
deep watering of all the pots (no need to have cat watcher water if you aren't gone too long) and place all near the sunny window. They should be good until you get back.
Lastly,
to ATP!
