If you can’t eat all your snow peas when they are fresh, then I would suggest you blanch them and use your excess snow peas in the wok or sautee them. The are so good when you preserve them at their prime!
Harvesting Tips: 1) Snow peas are ready for harvest when they are a few inches long, the pods are flat and there are little pea bumps showing. 2) It’s a good idea to snip the pods from the stem with scissors or carefully hold the stem and pluck the pod. 3) Don’t worry if you don’t harvest a few of the snow peas at their prime because you can still shell and eat the peas inside. If you let too many snow peas go past their prime on the plant, then it may stop producing.
Short Term Storing Tips:  4) Put them in a plastic bag or container in the vegetable drawer in the fridge. 5) Don’t rinse them until you are going to use them. They will last longer this way.
Long Term Storing Tips:  6) Remove the tips at both ends and any strings down the sides. 7) Blanch the snow peas by putting them in boiling water for 1 1/2 minutes and submerge them in ice water for about the same amount of time so they cool down. 8) Drain the snow peas. 9) Individually freeze the snow peas on a dish or a tray in freezer. 10) Store enough for one meal in a vacuum sealed bag – they will last longer with no air pockets.
If you need tips on how to sow and grow snow peas, I got you covered.