A flower knitting pattern uses the same abbreviations as other knitting patterns, so to read it, you'll need to familiarize yourself with the most common symbols. The website All Free Knitting has a basic flower knitting tutorial for beginners.
Flower patterns typically involve more detail work than a basic scarf or hat, so knitters may also find the more extensive glossary of knitting abbreviations from KnittingHelp.com to be a useful site to bookmark and refer to as they read through a pattern. Knitters will also find videos of basic knit stitches, increases and other knitting techniques on the site, and the forums include many questions and answers regarding how patterns should be read.
A search for knitted flower patterns on the website Pinterest reveals many different varieties, varying from small and basic, requiring only one color yarn and basic stitches, to very elaborate. Along with links to the patterns, the Pinterest postings provide ideas for how crafters can use knitted flowers in accessories, blankets, clothing, or home decorations. As an article by Buzzfeed also suggests, knitted flowers make for a fun and unique wedding bouquet, with many patterns and ideas for carrying or throwing bouquets available from the social knitting site Ravelry.