Arrow through three pictures below (the arrow isn’t so obvious):
It’s the persimmon tree that’s making the color. The wisteria drop their leaves too but they just turn brown and fall off. Everything is going to go dormant soon so I’m extra-appreciating all the colors and blooms now before they’re gone.
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Also as an aside here are Olivia’s plantings in the back from the first week in December:

Pot – cilantro, chives, collard greens
Kitchen plot – purple needlegrass; sedum (in shallow pot); yarrow, rue, lavender
Plot by B – Cedros Island verbena; calendula (flowers)