Cucumbers ripen?

I harvested a cucumber out of our garden. It looked nice and big and pretty.

Tonight I cut it open to mix with some of dill from our herb garden to make the cucumber salad mom used to make for us. Turns out, the cucumber wasn't quite ripe. The seed core is a bit small, and the flesh of the cucumber is a bit woody and bitter. Plus, the dill doesn't seem to be quite the right flavor either (perhaps it is too young as well - though the seeds are very tasty).

It'll be an interesting salad. Perhaps it'll just flavor the compost pile.