Maybe Crassula multiclava?

Natal plum?

Thanks for the responses. It very well could be Crassula multiclava!

That plant grew particularly well on the wet side of my SD apartment yard, rooted in hard-packed dirt only a 1/4" thick, at best. I imagine it could turn into an invasive in the SF area, and IIRC it's kind of cold-hardy, if that don't beat all. Karen's right, the leaf shape looks like Carrisa macrocarpa.

Is the downside of the leaf redcolored?

Hablu asks a good question. What does the underside of the leaf look like?

tj

My neighbor's Carissa macrocarpa is eight feet tall and 20 feet wide, so I've seen quite a lot of Carissa macrocarpa That's not it.

Oops, well OK then Hoov, thanks for clarifying.

This is still going strong. First flowers are starting. It's about a foot tall.

It is green, both sides. In the winter and summer there is no colour change.

I'm stickin' with my original guess - it's looking simply wonderfully crassulicious in that last photo. IIRC, its flower stalks are viviparous.

Jeff

Learned new word today :) Thanks!

(viviparous: (of a plant) reproducing from buds that form plantlets while still attached to the parent plant, or from seeds that germinate within the fruit.)

I think it's been positively id. I'll see how the flowers look. Thanks for your input!

I agree 100% it’s Crassula multicava. A woman who lives by me has a bunch in her yard and this is definitely it;).