Hello ks;

you have a Haworthia (maybe cuspidata? - hopefully someone else will confirm) on left and Kalanchoe tomentosa on right.

Haworthia seems to be potted too deep in the container. Are there drainage holes in there? Both plants will require good drainage, and Kalanchoe will need lots of sunlight - otherwise it will grow very tall and spindly. Could you provide general location/zone you are in?

Rina

Thank you for informing me of my plant type!

There are drainage holes in both- they are potted in yogurt containers; they just have 3 scissor punctures in the bottom. I live in the middle of Georgia (US), so I'm not sure about sunlight since it has been cloudy recently.

Good about drainage in your containers.

In your climate, you could leave the Kalanchoe outside, until temps drop to about constant 60*F. It would benefit from some natural light; even shade outdoors is more intense than indoors light. If you don't have outdoor space, keep it by the sunniest window you have and/or consider supplemental light. It still will grow longer stems as it gets older, but not as 'bad' as without enough light. Some cloudy days are normal, I am referring to long periods of time.

Rina

I live in a college dorm, so essentially, it will do good for me to just leave the plants on the window sill? And I'm not sure what type of artificial light I can use... does that mean I could use a desk lamp, or would that harm the plant?

No, desk lamp won't harm the plant as long as bulb is not touching the leaves. If you get a 23W CFL bulb (equivalent to 100W incandescent), that would be quite good. Windowsill will be good to put the plant on - do you get any sun coming in?

Thank you! I'll check the bulb as soon as I get back. I get sun coming in whenever there aren't clouds, so I'll just set them there. I'll get the 100 incan. bulbs if I don't have any and use those on cloudy days. How often should I water my plants? I've heard that I should every 1 to 2 weeks...

I'm late to the party, but I agree with Rina that the left plant is Haworthia x cuspidata.