If you are an enthusiastic gardener and are a little bored with the usual varieties
of plants that you seem to have in your garden, then possibly its time you try to cross-breed some flowers that you may have. Its much like mixing two shades of paint together where white and red give you pink or yellow and red give you orange. The only thing you will be doing is facilitating this unique mix with flowers.
Doing this is not rocket science, though it might take you a bit of trial and error to get it right. Start with the same species of plants in your garden that you really like like a set of roses or a cosmos or even tulips. Keep in mind that they have to be of the same species else the experiment will not work. What you are trying to do is enhance the traits that each of the flowers have got and create a new one out of them.
Once you have picked your flowers, you will need to know more about them. Get online or get a plant reference book and find out when they are at the heights of pollination levels. You will also need to spot tips that will let you know when the flowers are pollinating. Once you know when the plant is pollinating you can take on the role of a honey bee. Dip a cotton swab in the pollen of one and apply it to the carpal of the other. You can also turn to your reference book to find out where these are. Thats about all you need to do a couple of times all through the flowering season. Then it is just a matter of wait and watch to see what results from your efforts.
Another way of doing things with flowers that pollinate is to plant them close to one another so that they are touching. Water them, ensure they grow in proximity and you will find that they cross pollinate on their own and create whole new species themselves. You have to keep in mind that not always will you end up with an exotic colour of flower. Some of them can be regular and it takes a while for you to get the right knack when it comes to colour combinations.
Once the new plant gives flowers, you can always create seeds from it and grow them extensively if you have really liked the way they look.