I'm asking mainly because of http://cooking.stackexchange.com/questions/69381/what-is-the-ideal-age-for-cooking-with-hostas

> I've read that hostas can be fibrous, and stringy when they get to old, so what is the ideal age for hostas when you cook with them?

The OP did also add:

> i'm asking about when they start being stringy, and fibrous, not specifically picking them

but still, it's about when a plant reaches a certain point that's desirable for harvesting, so nonetheless it seems to boil down to when to pick them.

Should we take questions like this, or migrate them to gardening? (When to harvest a crop is on-topic there.)