My guess is that it's a type of sedum?

Or Kalanchoe milloti or its hybrid?

Many succulents often change color depending on different growing conditions, time of year etc. Many succulents will put on more, warmer, color when exposed to more light. I imagine it was either inside or in low light conditions when you bought it and exposure to more light along with maturity have caused the color change. That chalky stuff you are talking about could be a glaucus leaf coating which is also normal on some plants. I've seen a bronze graptoveria go from a bright pink to a deep green because it was moved into a low light condition (color change caused by stress.) I've also seen stapelias turn from green to pink/orange when moved into higher lighting conditions. Sempervivum hens and chicks change colors year round depending on the season which is one of the things that appeals to many collectors of this spieces. I'm assuming the last picture posted is probably a better representation of what the plant color is more likely to look like. It doesn't look like a Crassula to me. It looks more like some kind of cotyledon reminds me a bit of cotyledon mint truffle but it does have a margin closer to a kalanchoe millotii. It looks a lot like a kalanchoe of some sort actually. There are a lot of kalanchoe's that have a fuzzy coating on the leaves. Hope this helps get you started on a Google search. It's still early though I'm sure someone will be able to ID it here for you.

It reminds me of Sedum sieboldii 'October Daphne'. Maybe the chalky stuff on the leaves is mineral deposits?

Liz is correct IMO...And that is a hardy succulent, may not like spending winter inside much. How warm was it during winter? Hardy plants appreciate some cold temps for few months. They usually do not look that great grown indoors. Same with sempervivums - many ppl post about them too. They don't die, but don't look their best.

What is your general location and/or growing zone? (best if added to your profile/name so we don't have to keep asking...)

Plant needs good drainage (as any succulents) and bit more light, it is slightly etiolated. They usually have more flowers too if grown under more suitable conditions. Can you put it outdoors?

Agree with sieboldii. They wither after flower and come back in spring.

I love sedum sieboldii, I used to see large hanging baskets of them in the fall, sadly not in 5 years or so.

Yes, I thought it was a sedum as I mentioned above....but I couldn't recall the sieboldii bit! Do I get half a point for being half correct?? Please!

Gill

Gill

More than a half point, haha...I am sure it was 'there' but couldn't just say it (happens to me all the times!)

Wow, so many responses, thanks guys! I didn't believe it was a sedum at first, but Liz and Greenclaws were right! My mystery plant is identical to what I find for Sedum Sieboldii on Google, so that solves that. I also see some photos on Google where the colours are more like what my plantie looks like at the moment, so I'm guessing it's not doing terrible after all then. I will look some more into the mineral deposits, to see if those are common.

I live in Brussels, which is growing zone 8b I believe? It was standing right next to the window this winter, which is about as bright (and chilly) as it gets in the winter, so that does sound like a good place for it then. However, I moved it to the other side of the house, where we have the morning/early afternoon sun. I guess I could also try putting it on the balcony then? We don't have a garden unfortunately! It's still pretty cold at night though...