Ooh this question had me stumped!
Why is it that our earliest memories are so fragmentary and elusive hmm….
Apparently those memories that remain from childhood are meant to be striking http://www.nytimes.com/1982/12/07/science/why-are-earliest-memories-so-fragmentary-and-elusive.html?pagewanted=all&mcubz=3 but I’m sorry to disappoint you that mine are rather more mundane! My sister is called Katherine and, being only two years apart, we used to play together in the field behind my house hunting catkin’s as we thought they were pretty damn special and obviously somehow mystically related to Kath!
If I was going to get a little fancier on you (ooh) I’d say that my most prominent first memory with nature is when I got chicken pox – pathogens, viruses, bacteria – nature kicking my ass. I remember that strangely beautiful milky pink lotion that I spent hours dabbing onto myself and the terrible need to scratch! (luckily I only ended up with a couple of scars!)
Here’s some other people discussing their first memory if you’re interested! https://www.theguardian.com/lifeandstyle/guardianwitness-blog/gallery/2015/mar/28/your-earliest-childhood-memories
I feel like this is one of those questions where you all go Sigmund Freud on me and analyse the meaning of my memories! Feel free to discuss it in the comments! https://www.theguardian.com/lifeandstyle/2012/jan/13/our-memories-tell-our-story