Self sows like crazy in my region. Have a look around. You might find seedlings.

Kiss-me-quick (common name)

This is an invasive species in California.

Common name I am most familiar with is red valerian (kiss me quick is typically Portulaca pilosa). And is an invasive or watchlist species along most of the west coast.

A happier common name, also referencing ancient Rome, is Jupiter's beard.

Common name that I know for Portulaca pilosa is Hairy Pigweed :-)

Yep, Red Valerian here too. I am not a fan...although some white centranthus blew into my allotment a few years ago, which has been a tad more mannerly and looks nice underneath the roses.

I love true valerian (officinalis and pyrenaicum)