The color of the flower is based upon the chemistry of the soil which means that alkaline soil produces pinker colored flowers while acidic soil produces blue coloured flowers.
What colors do hydrangeas turn in acid soil.
Acidic soil does not bind with aluminum and hydrangeas can easily absorb it which causes.
Some varieties stay white so no amount of acidifying or adding.
Such blooms have blue sepals when the shrub grows in acidic soil but develop red or pink sepals when grown in neutral to basic soils.
If the soil naturally contains aluminum and is acid low ph the color of the hydrangea will automatically tend toward shades of blue and or purple.
Blue blooms come from.
The ph and content in the soil plays a crucial role in the coloration of hydrangea blooms.
You see for most french hydrangeas hydrangea macrophylla the flower color indicates the ph of the soil.
The choice of fertilzer will also affect the color change.
The quintessential blooms however are the bright pink purple and blue varieties of bigleaf hydrangeas.
In alkaline soil ph above 7 flowers turn pink or even red.
Chemically speaking aluminum in the soil causes sepals to turn blue.
Soil with a ph of 5 5 or lower is considered acidic while a ph of 7 0 or higher is considered alkaline.
White hydrangeas prefer a neutral or alkaline soil according to clemson university extension.
Red and pink blossoms are typically the result of more alkaline or neutral soils.
Changing the color of your hydrangeas adding lime to acidic soil to low the ph and encourage pink flowers elixir gardens garden lime granular soil conditioner 25kg.
The more acidic the soil the more blue the hydrangea becomes as long as it s a variety that is capable of producing a blue tint.
There are others which produce white flowers or white going on pink blooms.
The shades of hydrangeas depend on the acidity of the soil.
Basic or neutral soil results in red sepals while acidic soil causes bluing.
Soil chemistry and color the most commonly grown varieties of hydrangeas are the bigleaf varieties.
In strongly acid soil ph below 6 flowers turn blue.
A wide range of colors exists in between such as purple lavender and violet.