i planted Snow Peas on superbowl sunday. It is the earliest i have ever put them in. a trusted friend advised me he planted them early all the time and had great success. i had to lower the trellis i built for them to the ground. in years past the trellis began about 6-12 inches off of the ground. the plants would fall over before they could reach and attach. i had to hand train them to the trellis all the time. hopefully, now they will attach themselves almost immediately. fingers are crossed here...
Good luck, I love Snow Peas. Photos? I am getting mine started today, probably should have last month