Fabric dye (flowers)

I recently saw a process where you use flowers to due fabric, I really wanted to have a go so at first i used some flowers that had been in the kitchen but they were starting to die, so when I put them between the fabric and used the hammer not much colour came out. I was a little disappointed with the results so I tried again with flowers from the garden that had just bloomed, this worked a little better as I had a lot more flowers whereas the first time I only had a few, however because I had to wait a week for the flowers to bloom I'd lost the post on how to finish the process, so I ended up ironing the fabric and just keeping it out of sunlight to try and keep the colour in. I washed it the other day in cold water and the colour faded slightly. I wanted to try this because it does link in with the Alice in wonderland theme slightly.

I found the link to the page on how to do this process.
http://artstudioblog.milliande.com/2013/06/eco-dyeing-flower-pounding-with-natural.html