How to make the roses blue, green...?

We can buy blue, green roses, or I even have seen mulitcolor roses what were lovely. I just wonder if they use some pigment and add it to the water cos they don't paint them I am sure! And there is no way they are like that by nature.

How to make the roses blue, green...?
Ok.


First off most colors that are not normally found in nature are painted with special floral paint (spray paint). Blue, green, black etc. Nothing is added to the water you can only sometimes do that carnations.


Second, there are true bi-color roses out there that are normally found in nature.


Third, you can do a lot now with hybrid roses. But, nothing along the lines of blue or green.
Reply:if you add coloured food colouring to the water when the flowers are cut and in the vase they will change colour
Reply:Magic...the flower fairy comes and changes them to wonderful colours when the garden centres are closed....
Reply:yes they add pigment to the roses....thats how u get black roses etc, they keep adding the pigment to the water until the rose changes colour. My fiance was once a florist.
Reply:Any white flower can be dyed on stem. Make a small angular cut low on the stem and add a drop or 4 of food color. It will be absorbed and come out in the flower head.
Reply:they are grafted together and grown that waybut on another note i found this site which states


"No true blue rose exist yet. Some roses are sold as blue but are really a lavender color. Most of these lavender roses are difficult to grow and are quite susceptable to disease. There is no true blue gene in the rose".


Is there a black rose?


No true black roses exist. Rose sold as black ones are really a dark maroon. These roses tend to get their petals badly scorched by the sun.





http://faq.gardenweb.com/faq/roses/
Reply:Actually, there are hybrids that are grown in those colors.


I don't know if white roses can be done like carnations, but, try putting a white rose in colored dye water and see if the color comes up into the flower.