@NMoasis : I thank you for taking the time to address me personally, we all have our priorities.
I appreciate what you are saying, but I've always been one to ask a lot of question and not afraid to either.
I have a wide range of interests and this hobby takes a lot of time, as you know. I do often follow the lifecycle of a plant (I just noticed Stachys Byzantina losing its blossom in as short a period as Phlomis) and that can take months. So I accost those that do know, because I have so many to find. North London is just full of flowers.
At first I just wanted to know a few, but then I began to "see" more. Admittedly, I never look at the leaves, but I do take many shots, for ID purposes. But for me, I just want to know their names.
Your advice may suit me better after the summer months, as I permanently walk around ill, because of the pollen, so I can't smell very well anyway.
The whole process started when somebody (quite useless, but very amiable) scolded me for not knowing what a bumble bee was (I ID'd a wasp) and it shamed me into realising that the only tree that I knew was a Weeping Willow.
These are not trees, but I like flowers a lot more and they're easier to distinguish.
Well, it paid off, because walking round the corner from my house, I saw a couple photographing Hydrangea Macrophylla (pink) and I told them what it was, because I knew and they didn't. On top of which I told them why it was pink and how to get different colours (pH of soil), to which they were impressed with.
Mother Nature was pleased.
Today was that first day.