I started Sugar Snap peas in late June last year, and harvested peas into November. They grew just fine in the warm summer weather (all three days of it). I think snow peas would do fine.

Given the lousy weather so far this year, it would be great to have autumn peas! Not to hijack the thread, but my sugar snap peas have flowers on them now,and one of them is a maroon bicolour. Any chance this is a pea that shouldn't be eaten?

Yes, Extension was telling people August plantings were better than spring some years ago. I have no experience with this, that I remember - I only occasionally grow vegetables.

I think August is way too late. I sowed in late June, and the plants were productive into November. Maybe it depends on the weather.

I've sown fall peas starting in mid-late July every few weeks until mid-August. The later sowings sometimes don't flower & provide pods, but the pea greens are good in stir fries & salads.

Just finding garden space can be tricking in mid summer, so I tuck them here & there more often than a row. Self supporting types have grown well in between my strawberry rows.

Ciscoe Morris said that someone shared at one of his talks that for summer sowings of peas put in ice cube trays then plant the ice cubes out for the cooler soil. Seems that it wouldn't last long, but might be interesting.

I've just watered soil well & let drain about an hour, plant peas, mulch & water the next day, too. Seems to work for me, but I don't have full sun all day either.