I live at 4500 ft. in SE Arizona. Would like to know best time to plant sweat pea seeds. Thanks.
I don't know your elevation but you can use the recommended planting dates from the Cooperative Extension http://ag.arizona.edu/pubs/garden/mg/vegetable/regions13.html
I'm at 1,800 feet or so (North Phoenix) and I planted snow peas on 11/9 and they're doing well. We had light frosts the last two mornings but it didn't bother them.
Here is a link that might be useful: AZ Cooperative Extension