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Gardening

Find tips and tricks to make your garden or allotment flourish on our Gardening forum.

Annoying bright pink hydrangea

112 replies

Beachtastic · 23/07/2025 11:27

I made the foolish error of ordering loads of plants online when overexcited about having a garden at last after a few years living without one.

This hydrangea has just come into bloom and is a solid bright pink - that boring flat pink that hydrangeas can be. Nothing like the photo.

I now see that the description does mention "pink" but am not sure if that has changed since I placed the order last December.

Contacted Gardening Express about this and they have replied saying that I should adjust the pH of the soil using a hydrangea colourant. I know you can do that, but am I wrong for thinking there is no way it would ever look like the plant in their photo?

www.gardeningexpress.co.uk/hydrangea-macrophylla-gertrud-glahn

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ErrolTheDragon · 23/07/2025 16:57

Beachtastic · 23/07/2025 16:48

I do associate them with the suburban gardens of my childhood, especially the pink ones... I also think of cotoneaster in that category of plants I consider a bit dull.

That said, as a child I thought "Peace" a very boring rose because everyone planted it in their gardens after WW2 and I got sick of the sight of it. When I was a cheapskate and bought the bare-root from Sainsbury for £3 (!!!), I was really looking forward to including it in my garden as a sort of nod to my grandmothers and their rose patches. I was so disappointed when it came out bright yellow, so actually forked out for a proper one from RHS. You definitely get what you pay for! 🤩💗💗💗

my house when I was growing up had a huge Peace rose in the front garden, it was glorious. I was quite upset when I walked past after my parents had sold up to go into a retirement home that the new owners had done away with it.Sad

Beachtastic · 23/07/2025 17:01

ErrolTheDragon · 23/07/2025 16:57

my house when I was growing up had a huge Peace rose in the front garden, it was glorious. I was quite upset when I walked past after my parents had sold up to go into a retirement home that the new owners had done away with it.Sad

I certainly appreciate it fully now that I'm older and am so pleased that I managed to overcome my parsimony! It's a glorious rose. How sad for you to see it gone 😞

OP posts:
Miyagi99 · 23/07/2025 18:02

Yes, you just need lots of ericaceous compost.

Poodlelove · 23/07/2025 19:47

Look at Gardening express on trustpilot, they are absolutely shocking and so glad that you actually got any plants at all 😉

Beachtastic · 23/07/2025 19:48

Poodlelove · 23/07/2025 19:47

Look at Gardening express on trustpilot, they are absolutely shocking and so glad that you actually got any plants at all 😉

I realise that now 😞

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Hedgesgalore · 23/07/2025 19:49

Have two large blue ones here (not in Cornwall), my others are deep purple/deep pink on the same bushes.

My pink one is in a pot, I wanted a change.

I have one that has washed out pastel blooms, its trying its best but I'm not sure about it all the same when my others are such strong colours.

I know my soil is acidic but I also put down coffee grinds from our machine, my hydrangeas seem to like it. I do my own composting too so the garden is feeding itself really.

Thisismyalterego · 23/07/2025 21:08

Like a pp, I'm not really a fan of hydrangeas. For those of you who are, I can thoroughly recommend the approach to Portmeriion. When we last visited, it was a positive riot of different coloured hydrangeas. Even though I'm not a fan, even I thought they were stunning.

slightlydistrac · 23/07/2025 21:13

My lacecap hydrangea has pink and lilac flowers all on the same bush, which looks delightful, but has only happened the last maybe 3 years. For the previous 25 years or so it was unremittingly pink all over. So they do have a mind of their own.

I googled it last year and found out that it can happen if your soil is neutral. So maybe that's what has happened to mine. I have had to water it a lot more often in recent years so maybe that has changed the pH in the soil.

wateraddict · 23/07/2025 21:14

We had to replace the lime render on our house and our bright pink hydrangea went blue for two years, then purple then back to pink. All the dust had fallen on the soil. Go for the adjustment, ours was a happy accident!

Beachtastic · 23/07/2025 21:14

I've ordered some aluminium sulphate/aluminum sulfate 😜 and will experiment. If anything interesting happens, I will post pix! 🤞🏻🤞🏻🤞🏻

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slightlydistrac · 23/07/2025 21:18

@Beachtastic You might have to wait until next year before you see any changes though. By the way, I always leave the spent heads on the bush all winter, they look amazing with a frost on them.

Applesarenice · 23/07/2025 21:47

Blue hydrangeas turn pink without the right soil

FluffykinsTheFerociousFeralFelineFury · 24/07/2025 04:28

Heronatemygoldfish · 23/07/2025 15:33

I live in a chalk area and love blue hydrangeas so have known I'm on a losing streak in the garden since day one. I've spent years buying blue lacecaps of various names and not one has ever come up blue despite using all the blueing chemicals and keeping them in ericaceous John Innes in pots. I have one out at the moment that I noted in my garden diary was 'a lovely pale blue, alternative colours the usual pink and white' and so typically it's flipping pink... if it ever deigns to flower! But it's a double lacecap so it sort-of makes up for the colour by being slightly unusual.
The one that does come up the correct colour is H quercifolium, which is lacy white with huge oak-shaped leaves. Sigh. I think the only place the blues ever come up right is Cornwall.

Do you water your hydrangeas using mains water? That may be enough to turn them pink in a hard-water area. I've managed to keep some of mine blue by growing them in pots with ericaceous soil and giving them only rainwater.

LivingTheDreamish · 24/07/2025 07:01

Same, I have a lacecap that is literally called Bluebird and it's had all the blueing chemicals and it's just gone and flowered pink again. I'm so cross!

MissBattleaxe · 24/07/2025 08:04

My Nanna had a stunning garden and she always said to bury a spoon in your hydrangea soil. That's a quick fix you could do today, though it takes a while kick in.

Beachtastic · 24/07/2025 09:29

FluffykinsTheFerociousFeralFelineFury · 24/07/2025 04:28

Do you water your hydrangeas using mains water? That may be enough to turn them pink in a hard-water area. I've managed to keep some of mine blue by growing them in pots with ericaceous soil and giving them only rainwater.

Good point! Yes, it is a hard water area...

OP posts:
MrMucker · 24/07/2025 16:13

Feed it used coffee grounds.
You can get them at all sorts of coffee shops and supermarkets. Ask!
They will work in t h e same flowering season, sending it several shades bluer from the new unopened buds.

The variagation in the picture that you so like could possibly just be a snapshot colour of the blooms having just opened. They do all go somewhat darker and more dense as the flowers sit there, this could include losing the whitish element of the petals.

MarxistMags · 24/07/2025 16:47

I love hydrangeas! They're big bold and flamboyant !
And very easy to look after.

Beachtastic · 24/07/2025 16:49

I do think they make fantastic cut flowers, and are also kind of bombproof, which is ideal for my gardening skills.

And, as a PP mentioned, lovely in winter with the frost on the dead heads, although I am not sure we get many frosts where I am!

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woodlandcalm · 24/07/2025 17:23

Beachtastic · 23/07/2025 12:16

Here's the offending plant... she's in the soil, not a pot. (I'm going to think of this in terms of "she" rather than "it" in an effort to feel more compassionate towards this awkward accidental arrival!)

I must have gone berserk when ordering, because the only hydrangeas I really love are the lacecap ones, and others like "Limelight" that have a more conical shape like a lilac bloom. I just got sucked in by the photo I think, which is why I'm kicking myself.

@Ihateslugs that must be so frustrating! I've had some really nice things from online purchases (notably Sarah Raven, who has had a bit of a slating on here) but they can be rather unpredictable in terms of plant quality as well as size.

I'm going to experiment with some aluminium sulfate and will see what happens!

Maybe I just have bad taste but I think she looks lovely, the pink looks nice against the dark green!

Edited - sorry, didn't mean to quote full post and it won't let me remove.

feejee · 24/07/2025 17:32

Yes. I dug up a big hydrangea a few years ago when we had work done near it. I split it 4 ways. The one in front garden is pink like yours. The 2 closest to it's original site are like the one in the photo you'd ordered and the one towards the back if the garden is vivid blue.

Sumyouup · 24/07/2025 19:10

I've been advised to add some rusty nails to the soil to turn pink flowers blue. Problem is I have no rusty nails!

TheOnlyAletheia · 24/07/2025 19:20

I'd be binning that one off OP - I don't grow plants that I don't love - I have too many that I want to grow already- rather than giving space to something that doesn't fill you with joy when you see it :)

Julieju1 · 24/07/2025 19:25

I bought a pearl tree once, it had fruit the following year - cherries!

Willitgrow · 24/07/2025 19:31

This thread is honestly a good mood tonic - so wholesome! Can I ask whether that is the correct name on the product page for the hydrangea you received please? I actually quite like that variant. 😅