Take a white carnation and slice the stem into several strips.

Put each strip into water coloured with different food-colouring.

You may have to prop up your flower.

In 2 days the water should have moved up the stem and you will have a coloured flower.

Try this with a stalk of celery - does it work?

Take a picture of your flower and send it in (as a jpeg or mail it as a print), and Global Forest will post it in the GF-Gallery along with your name and we will send you a GF sticker for your collection.