Hydrangea Macrophylla Propagation Part 2

Hydrangea Macrophylla Hardwood Propagation in London, United Kingdom

This is part two of a Hydrangea growth story.  If you haven’t seen how this started, I recommend you first see part one.  This update is really a lesson in patience and persistence, which many agree this is what gardening is all about.  The original hardwood cuttings were put in rooting powder and planted into soil in August 2016, and the first signs of leaves appeared within a month.  Since then, the cuttings were pruned right down and growth continued.  In January 2017, the cuttings which hadn’t shown growth were carefully removed form the soil to check if they were viable.  Surprisingly, the majority of them did show small little roots, so they were replanted in the same pot as the cuttings which had leaves.

Since I have had so much success with these cuttings, I have received a lot of questions about the rooting hormone I used, here is a link to the exact one I used on Amazon.

 

May 2017

All of the growth so far appeared in Autumn 2016, so it was surprising to see new growth coming from a cutting 8 months later.  This is encouraging and a lesson for all gardeners to be persistent.  One other thing that the below picture shows is that some of the cuttings are hollow, these are definitely not alive, however the ones which aren’t hollow still have the potential to re grow.  I think the new growth spurt is due to the longer days with more sunlight.  As it is still early in the growing season, I am positive that we will see even more growth throughout the summer.

May 2017: New leaf growth is appearing, this appears to be growing off a different cutting.

 

hydrangea hardwood cutting
May 2017: A side view showing the new growth in the front against the growth which first appeared in September 2016

 

June 2017

To recap on where we are, there are three different pots that these hydrangeas are in.  There are two large pots, one of which all the leaves appear to be yellow-ish coloured, and then one small pot.  From here onwards, I am going to refer to them as green pot, yellow pot, and small pot.

Green Pot

hydrangea hardwood cutting growth
1st June 2017: The new growth which appeared in May is now growing more leaves and is just as healthy as the more mature growth around it
hydrangea macrophylla growth
1st June 2017: The new growth can be seen in the front, with the shoot which first appeared in September 2016 dwarfing it.

 

HMAC_G_170601_V2
1st June 2017: Pot as seen from above, leaves are growing very large
fast growing hydrangea
September 2016 vs June 2017: the tiny original growth is now growing large leaves and is sprouting out other small growth below.

Yellow Pot

In May this plant was discovered to have a small bug infestation.  They were small and white and only really noticeable in the small area of new leaf growth.  I think they were whiteflies. This was rectified by weekly bug spray, but I’m unsure if the yellowing leaves is linked to this or just coincidental.

Hydrangea Macrophylla Yellow
1st June 2017: The yellowing of the leaves hasn’t seemed to really change, even though the location of the pot has. Even new growth is fairly yellow. This remains a mystery.
hydrangea leaves turning yellow
1st June 2017: The side view of the yellow pot shows the height that this plant has grown to in less than a year

fast growing hydrangea
20th March, 22nd April, 1st June: Despite the yellowing of the leaves over spring, the growth has continued and the plant seems to be doing really well.

Small Pot

hydrangea macrophylla propagation
1st June 2017: This pot seems to be growing the most rapidly and healthy.
hydrangea macrophylla pot
1st June 2017: View of small pot from above, as you can see there is a lot of growth, perhaps it will be time to pot up soon?

 

fast growing hydrangea macrophylla
20th March VS 1st June: Growth progress in 10 weeks!

 

See part one of this project here

See our other plant stories here

Please get in contact if you have any growth stories to share!

 

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