The news that the Chinese are becoming addicted to virtual farming seems only a little less strange when seen in light of previous meetings of horticulture and video gaming.
Who could forget:

Gardening Mama (Nintendo DS) "Plant, water, fertilize, prune, eliminate pests and then harvest what you've grown!"

Cultivation (PC, Mac) "A game about a community of gardeners growing food for themselves in a shared space... there is no shooting, but there are plenty of angry
looks."
I must admit I could make no sense of this game whatsoever.

Flower (Playstation) "Playing as the wind, the player guides and grows a swarm of pedals by
interacting with other flowers and the surrounding environment."
Spreading flowers around via their petals (rather than, say, their seed) is odd enough. Spreading it via a swarm of pedals... the mind boggles.

Plant Tycoon (PC, Mac) "breed and cross breed plants until you find the 6 Magic Plants of Isola and solve the genetic puzzle"

and perhaps weirdest of all, Plants vs. Zombies (PC) "A mob of fun-loving zombies is about to invade
your home, and your only defense is an arsenal of 49 zombie-zapping
plants. Each zombie has its own special skills, so you'll need to think fast and plant faster to combat them all."
And for those who go outdoors and grow actual plants once in a while, why not give into geekiness and turn any unwanted radishes into Super Mario Mushrooms?
