How do I grow a flower and shrub garden, know nothing about gardening, help!?

Have a tiny 20"x20" garden laid to lawn. From Asia, know nothing about gardening here.How do I grow a flower filled garden? I've heard that you need to prepare the garden in autumn/winter to have flowers in summer. Need advice from ABC please!

Answers:
What you're talking about is planting bulbs. If you plant flower bulbs in the fall, they weill bloom in the spring summer. But you can also plant seeds in the spring or even buy seedlings and plant those as well. This is a good website with tons of gardening information -How do I repell/remove birds from my backyard?
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