Hydrangea
Hydrangea, common name Hortensia, is a genus of 70-80 species of flowers. The earliest kinds of hydrangea came from southern and eastern Asia.
| Hydrangea | |
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| Hydrangea macrophylla | |
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| Genus: | Hydrangea |
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The color of the flowers can tell you how much acid is in the soil the plant is growing in. Alkaline soil produce pink flowers. Acidic soil produce blue flowers.
Hydrangea Media
Hydrangea flower color changes based on the pH in soil. As the graph depicts, soil with a pH of 5.5 or lower will produce blue flowers, a pH of 6.5 or higher will produce pink hydrangeas, and soil in between 5.5 and 6.5 will have purple hydrangeas.
Hydrangea flowers close up.
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Hydrangea macrophylla, flowers
Hydrangea macrophylla, flowers
Hydrangea sp painted by the botanical artist Redouté.
- Hydrangeaquericifolia
Other websites
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Wikispecies has information on: Hydrangea. |
- Flora of China at efloras.org