How do you change the color of a Hydrangea? It should be red but its turned whitish/green,same w/ the blue.?

Only a few species of Hydrangea flowers color can be affected. H. macrophylla and H. serrata are the most common in the industry.





As many others have said, the more acidic the soil, the more blue/purple the flowers will be. The more alkaline the more pink or red. Again, this only applies to the above species.





Other species of Hydrangea aren't affected in the same way. H. paniculata for instance blooms white, then the flowers fade to pink or a rust color. H. arborescens flowers are green, then fade to white then back to green, before finally turning brown. In both cases, the soil pH is not a main factor.





I'd recommend Aluminum sulphate, or soil sulpher to help make your soil more acidic. Use lime to adjust your soil to make it more alkaline. Follow the directions on the labels!


Your local independent garden center should have any of those soil amendments, they are pretty common.





I hope that this helps


Good luck-

How do you change the color of a Hydrangea? It should be red but its turned whitish/green,same w/ the blue.?
For pink/red hydrangeas, put lime in the soil. For blue/purple ones, put high-acid fertilizer in the soil. Sounds like your soil is acid, so the lime is what you'll need to turn them pink/red :-)





Good luck!
Reply:The color has to do with the soil. If the soil has a high acid content it will turn flower blue, but if alkaline it will be pink.


I remember my grandmother pouring her pickle juice on her plant to add acid to soil (from vinegar) So sounds like your soil needs more alkaline. Check with garden shop.
Reply:Acid blue


alcaline pink





acid - coffee grounds, tea bags, epsom salts


alkaline - rusty nails, lime, and erm, brain freeze, where's rsctx2 when you need him?
Reply:The answer is in the acidity of the soil. For certain varieties acid soil will turn the flower from pink to blue. For white varieties more acid soil will make the white brighter. I'm not very experienced with red varieties but think adding holytone or aluminum sulfate would enrich the red like it does the white.
Reply:Please read all of this. It is very important:





http://www.hydrangeashydrangeas.com/colo...