Hydrangea colours changing.

[Paranoidandroidmarvin]

Afternoon! I bought four of these. In the hopes that they will keep their individual colours as I know in certain soils they can change colours.

I currently have the correct colours for the correct flowers. They have been in the ground for about a month now.

Will they stay like this. How long does it take for them to change depending on the soil? Fingers are crossed here.

I am no help with gardening at all but fondly remember my grandmother using cold tea to turn her hydrangeas blue so that you for reminding me of this.

thank should have said thank you!

I love blue hydrangeas but unfortunately mine always go pink as the soil is alkaline.

White hydrangeas don't change, pink hydrangeas may turn purple/blue in acid soils, blue hydrangeas may turn purple/pink in alkaline soils. The level of change will depend on the pH of the soil.

@StyleDesperation how quick does this happen?

If you want them to be blue and your soil is not acidic enough you can buy a powder you add to water , use it once a month or so and it will remain blue.

I've never done it but looking online it says it can take several months or more than a year depending on the hydrangea and the soil. You could test your soil to see what it's pH levels are, then you can start trying to adjust the pH if you need to.

This is interesting, isn't it? It implies you can buy a plant of a certain colour in a pot and it won't stay that colour afterwards - not many like that, are they? Here's a pink hydrangea, oh no it's now blue!
I was going to post about this because an old photo from the 70s had a musty pink hydrangea in my garden, sort of dusty pink not gaudy so I wanted to ask if anyone knew one quite like that. Didn't want anything too Hyacinth Bucket, too great auntie. But am I correct in now thinking you have to just go for a ballpark colour and take it from there as your soil acidity will do the rest?

My blue hydrangea turned pink the second year of flowering.