But it's so much more. Read it for grafs like these:

After learning that apple trees would not bear fruit unless cross-pollinated with trees of another variety, he harvested blossoms from trees near his office, mashed the blossoms and spread the pollen on the tree. That evening, he writes, he made ardent love to his wife.

But trying to create the perfect garden took a toll. Mr. Alexander began with a dream of organic farming, which failed. The cost of creating the vegetable garden was considerable -- $16,565, not counting yearly expenditures on seeds and plants. Mr. Alexander spent every leisure moment in the garden. At book's end Mr. Alexander, now suffering from a torn disk, is wondering how to make gardening fun again.

Money, sex, aging. That's real gardening!