3" is a good size to pick them, if you're ready to use them (peppers don't keep very well after picked). Usually serranos are used green.

Nice job getting those peppers on only 4 or 5 hours of sun!

I don't know about the peppers, but I really like this shot with the soft backlighting

Lonmower, I got my post just before yours. Are you inside because it's too hot outside? I see you're in western OR--I'm in Milwaukie. I should be outside watering, but I'm in taking a little break from the sun.

I am retired, so I get to do my watering in the morning. I am in the foothills of the coast range about halfway between Corvallis and Eugene. Tomatoes not doing so well this year. Not sure why(?) My garden plot is not fenced and THIS year I am dealing with very persistent, wily and hungry deer who are getting under (crawling?) netting over my raised beds. I just got a "Scare-Crow" sprinkler deterrent. See how that goes.

Yes it is kind of hot (no A/C) but I wouldn't trade this life for anywhere in the US of A

Sounds nice--I like that area. Maybe someday when I retire...can't live without a/c though. Never had it until 10 years ago, but I don't think I could go back.

Tomatoes are doing great here. Warmer & drier than usual.

Good luck with the scare-crow.

Cal, really wasn't trying to hijack your post, just thought it was funny that 2 Oregonians commented within a minute of each other. So, did you decide if you're going to pick a few of your serranos?

this is my first year growing serranos, and i can't believe this plant is still fruiting in mid-november in zone 10. i still see quite a few flowers with small peppers in development. certainly the quantity of peppers isn't what it was in the summer, but it seems i'll still be harvesting well into december.

Serranos will keep setting fruit until frost kills them, and can be overwintered easily with a bit of frost protection in Zone 10.

Mine are doing well in central New Mexico (zone 8? 7?)

They really like warm to hot days and cool nights.

I'm tempted to borrow a berry term for this serrano behavior: everbearing.