Biodynamic/Moon Gardening

I've always been attracted to the Moon, love watching it rise in the sky, grow from a baby moon to a full moon but I've never thought much about the in between bits. Now I'm watching and learning! The Moon was spectacular tonight and very clear and bright.
Now for the lesson:-
On the 8th December there was a Full moon, known as the Cold Moon/the Long Nights Moon/the Moon before Yule.  Tonight's moon is 63.6% of its size and is a Waning Gibbous Moon. (Don't ask, I don't understand that yet).
https://www.timeanddate.com/moon/phases/uk/cardiff

I like all that info Veggie, I've always thought of a gibbous moon as being a pregnant one and the crescent moon as having had the baby . For me the phrase 'gibbous moon' invokes dark misty nights when witches are abroad....?on their hols, perhaps