It's Green Here!

Just wanted to quick point out one thing I keep noticing that's really different from what I thought Paris would be. I knew before coming here that it doesn't snow much in Paris, but I knew it was still really cold, which it is. For example, as I type this, the temp outside is roughly 32 degrees Fahrenheit. And yet I keep seeing green, LIVING, plants everywhere! The trees are still normal because they have all lost their leaves, but there's green grass everywhere and pots of plants in people's windows that are green and growing. Some even have flowers! Here's a picture I snapped a few days ago.

GREEN GRASS IN JANUARY?!