I just cannot get to the purple dragon. Everytime I jump over the blue dragon at the edge I either miss the flower or spring off of it and miss the second one , or never get past the second flower. I have tried over fifty times I am sure. How can I improve my chances?

Assuming you are talking about Level 2, Under the Hill, here are some hints on getting to the bronze key which leads to the purple dragon:

You need not jump OVER the blue dragon to reach the first springy flower. You can actually walk behind the dragon's sleeping body, then run and jump to the first flower. It is only when you make contact with the dragon's head that the level ends.

Use the three fruits above each springy flower to gauge how far you have to jump to the next flower. Of course, this only works once, as you will collect the fruits as you bounce on the flowers.