Pink Hydrangea Colors

It s not every hydrangea that changes color.

Pink hydrangea colors. Blues are best grown in acidic soil. Pink hydrangea fertilizer as we said above the color is determined by the ph levels in the soil. Hydrangeas change color except for the white ones based on the ph level of their soil. To make pink hydrangeas turn blue or to keep your blue ones from turning pink increase the acidity of soil.

The more alkaline the soil the pinker the flowers. To confirm your soil s ph level let s test a sample. Serrata cultivars change color based on the ph of your soil. These types of hydrangeas have the interesting ability to change the color of their blooms based on the chemistry of the soil.

Changing from blue to pink means subtracting aluminum from the soil or taking it out of reach of the hydrangea. If the flowers are pink it means they are taking up aluminum from the soil but if they are blue it means they are not. Pinks and reds do best in alkaline or neutral soil. Changing a hydrangea from pink to blue entails adding aluminum to the soil.

You can achieve this by adding amendments to you your soil like pine needles compost coffee grounds and aluminum sulfate that help make the soil acidic over time. Macrophylla especially mophead and lacecap types and h. Hydrangeas with bloom colors that range from pink through blue and purple usually belong to the hydrangea cultivars known as mopheads and lacecaps. If you want to make them pink you need to ensure they are getting aluminum from the soil.

When grown in alkaline soil the bloom colors are pinker.