Is this the rose stamp set that you are talking about
:
Splitcoaststampers Gallery - Roses in Winter DD - Stampin Up Cards & More
If that is the stamp set then you are probably talking about the 3 flowers that are stamped along the bottom (from the link above).
When I'm using that stamp set I've stamped those flowers a few different ways. On this page I used three different inks that I felt were close enough in color. Here I used- Lovely Lilac, Almost Amethyst, and Lavender Lace. I usually begin by using the lightest color on the biggest flower, then the medium color with the middle size flower, and then the darkest color ink with the smallest flower. Here's my example:
Stamped One Sheet Wonder by LaLatty - Cards and Paper Crafts at Splitcoaststampers
Sometimes I'll use two ink pads when I'm stamping these flowers, but I will 'stamp off' some of the ink to create lighter shades of that color. You can see an example of that on my card here:
Blue Roses in Winter by LaLatty - Cards and Paper Crafts at Splitcoaststampers
And here's an example of when I used only one color ink pad. Again, I just 'stamped off' onto a piece of scrap paper to create the different shades of that color. You can see an example of that on my card here:
CAS29 Roses In Winter by LaLatty - Cards and Paper Crafts at Splitcoaststampers
Hope that helps!