Similar experience here in Maryland. Supposed 30" vines just kept climbing and setting peas like mad. Ended up with a good 6' of vine in raised beds with lots of compost and I think we used inoculant. The yield was crazy good. Had about a 16' row that put about a gallon in the freezer and I lost count of how many we ate the day we picked them. Every time we thought they were done and got ready to pull them for the next crop my wife would have me wait just a few days and Bam!... they were back again. Definitely planting more of these next year. Next time I will definitely spread them out more as well. Grew so tight they were a bit hard to pick.