I'm also one-and-a-half. Mom grew a few vegetables, some annual flowers most years, and nursed a few rose bushes.
But she was possesive of her garden!
I got to dig up the sod originally, and turn the soil every year. I mowed, raked leaves and managed the compost heap. She knew how she wanted things done, and wanted to do them herself. Now, I understand that completely: my garden is MINE!
Dad's role was to come home from work late, receive his martini, and stroll down the lawn towards the vegetable garden, surveying it grandly.
Division of labor. To this day, I would rather cultivate the soil and a compost heap than cultivate flowers or vegetables. But you need an excuse to play with compost and soil, and so I grow things! It took a year or three, but now I care about some flowers and have ambitions to grow many more.
So I learned from books and the Internet and the best teacher of all: trial and error.
I imagine that (eventually) I may know more than someone who learned how to do things RIGHT at a young age. I know lots and lots and LOTS of ways to do things WRONG.