I’ve always planted mine in the fall, and I’m pretty sure I’ve read they take longer that way; maybe 240 days. Spring planted should take less, like 80 was, I imagine because of warmth and sunlight. The variety matters too. I remember growing one called “super precoce”, that was supposed to be early. I think Territorial seeds has several varieties, and mentions days to maturity. Do you know what kind you have?
Oops! Just realized you asked from flower to bean. I’m guessing, but really tiny pods without beans in a week or so, but the six inch, full of bean ones might be two weeks or more.
These are what mine look like in early March, and I usually eat them in April.
Early April
