- Turning flowers blue is a fascinating exerciseBlue flower image by Tim Soderby from Fotolia.com
Some plants change color over time. These plants are fascinating to gardeners who love variety and change in the flower garden. Some plants change color in response to soil pH, some change due to plant stress, while others change color after pollination. Some of these fascinating flowers change from white to blue. - Violas are cheery and spread in the gardenviola image by Annika from Fotolia.com
Violas are sweet little pansy-like plants. Several viola varieties change color. The Viola hybrida 'Sorbet' variety called 'Yesterday, Today and Tomorrow' has several color phases. The flowers begin as white and gradually move from light blue into deep blue. - Two flowers that appear white at first glance can change over time to blue. Phlox paniculata 'Blue Paradise' phlox begins as a very pale blue color and changes over time to become a deep blue and then a reddish-purple.
Hydrangea flowers are well-known for their ability to change color due to the soil pH. The color of the hydrangea depends on the availability of aluminum, and aluminum is more available at lower pH levels. Adding a sulfur-based soil additive will reduce the pH and mean that pale white-pink flowers become blue blooms. - White carnations can turn any colorwhite carnation image by Martin Heaney from Fotolia.com
Not all flowers change color in the garden plot. Carnations (Dianthus) are famous for their ability to change color by absorbing dye placed in their water. Florists use this trick to create stunning and bizarre colors of carnations. If you grow white carnations and place cut flowers in water with blue food dye, over the course of a day, the flowers will turn a deep, blue color.
