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Gardening

elleng

(139,764 posts)

2. 'For true blue flowers, the hydrangeas need to be grown in acidic soil

Reply to LaydeeBug (Original post)

Thu Jun 23, 2016, 12:43 AM

Jun 2016

(pH 5.5 and lower). For pink flowers, the plants need neutral to alkaline soils (pH 6.5 and higher). For purple blooms (or a mix of blue and pink flowers on the same plant), the pH of the soil must be 5.5 and pH 6.5.

http://www.bhg.com/gardening/trees-shrubs-vines/shrubs/how-to-get-blue-hydrangeas/

I trim mine (only my 2d year 'renting' an old plant) spring by cutting the old, dry stuff. Looks pretty good.

Have fun!

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Hydrangea help? [View all] LaydeeBug Jun 2016 OP

Pruning hydrangea is a bit more complicated than most flowering shrubs, IMO Major Nikon Jun 2016 #1

Thanks for that link because I am really confused about cutting them. glinda Jul 2016 #8

'For true blue flowers, the hydrangeas need to be grown in acidic soil elleng Jun 2016 #2

I keep reading that but the plant that i'm positive is a hydrangeas always has white flowers. NutmegYankee Jun 2016 #3

Could you have an oak leaf hydrangea? csziggy Jun 2016 #4

I think it's the normal variety NutmegYankee Jun 2016 #5

That looks like the classic moptop but I think there are white varieties csziggy Jun 2016 #6

Looking at images, I think it's the "Annabelle" cultivar of wild hydrangea. NutmegYankee Jun 2016 #7

All white hydrangeas will always stay white, regardless. nt LaydeeBug Mar 2017 #9