Endless summers hydrangea

last year

Hi,

last year i planted endless summers hydrangea and want to get another flowering shrub to plant next to it- could anybody tell me how tall their endless sumners hydrangea are when finished growing,i am in 6b zone?

thank yu

Comments (5)

Christopher CNC
last year
I have bad news for you. In a zone 6b, there is an extremely good chance you can kiss your Endless Summers goodbye.

You can grow the Hydrangea species paniculata, arborescens and quercifolia. Plenty to choose from. Hydrangea macrophylla is not one of them.
gardengal48 (PNW Z8/9)
last year
You can certainly grow Endless Summer hydrangeas in your zone!! And a fair number of other new wood flowering macs. However, there is a very good chance they will die back to the root crown each year unless you offer some sort of winter protection. If subject to that annual dieback, they will never achieve their mature size. I wouldn't expect to see them grow much beyond 3' (I have seen them get 8-10 feet tall and as wide in my very hydrangea suited climate).
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Hi Erica, I'm thinking it was a combination of more fertilizer (which they don't need the first year), the insecticide spray, and the sun! Is it possible that he tender leaves did not like the spray on them and burned in the sun! You may have to cut them back and wait for new growth, but no more bug spray and limit the sun until they get used to it. New plants in pots look great when you buy them but they don't acclimate themselves to the elements for a while. I have a bed of 6 hydrangeas in shade most of the day but they get 2/3 hours of sun in early afternoon and this year we added 3 new plants to the planter and the flowers burned to a crisp on the new ones and the older ones that had been in the ground for a year or so sailed through the heat and sun with no problems! The temps went up to low to mid 90's for several days, and all the hydrangeas in my yard wilted from the heat but the flowers perked up in the evening. Don't be afraid to prune them back if necessary, it will thicken the plant for you and you should still get some blooms later on the remontant types. Good Luck! Donna
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I would monitor that sun exposure. Hydrangea macrophyllas leaves usually need shade after 10-11am during the summer months (they may be fine in early Spring or in the Fall, when the sun is not as harsh. If the leaves in direct contact with sunlight are yellowing, including the leaf veins, then they are getting too much sun. You may want to consider transplanting to provide more shade. But because they are new, it is also possible that the current set of leaves is not acclimated to the amount of sunlight that they are now getting and future new leaves may be fine. I have sometimes used an umbrella or outside chair temporarily in year 1 to provide 'extra' shade instead of having to transplant them. If the problem persists in year 2, I then transplant them to get shade by 10-11am during the summer months. A nitrogen deficiency is another reason for yellowing, including the leaf veins. New leaves can also look light greenish for a while until they develop more chlorophyll. If the leaf veins were to remain dark green but the rest of the leaf is yellow, that would suggest a nutrient deficiency like iron. This is normally caused by alkaline soil and requires amending the soil with garden sulfur, aluminum sulfate greensand or iron chelated liquid compounds. Note: some of the plants are located close to the lawn. If you fertilize the lawn, be careful to not get the lawn fertilizer that close to the hydrangea roots as lawn fertilizer can be high in nitrogen. That can make the hydrangeas stay in "grow" mode and have nice foliage but few or no leaves.
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The new spring 2022 stems need to develop tall and old enough to trigger flower bud formation and bud opening before the end of the local growing season. Watering, fertilizing, mulching and appropriate sunlight levels can help. Unfortunately, the stems sometimes fail to trigger flower buds formation early enough… for still undiagnosed reasons.
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Blooms should typically go through a series of changes such as they start pink; colors fade; blooms turn pink; blooms add pink/burgundy splotches; blooms turn a shade of brown. Premature browning of the blooms suggests that any of these stressor events occurred by itself or in any combination: direct sun after 11am; lack of soil moisture; lack of enough soil moisture; very windy conditions; root disturbance/damage due to recent transplanting/underground pests/etc.; or excessively high temperatures with low humidity that desiccated the blooms.. If the stressor event lasts long enough, the leaves will lose moisture as well and start to brown out from the edges inwards. Maintain the soil always damp/moist during the summer months. Use 3-4" of mulch past the drip line. Ensure that the plants get morning sun only and that you use enough water to moisten the soil down to a depth of about 8" or so. Hydrangeas planted in the middle of the summer months tend to be very sensitive to heat, especially if they are not slowly acclimated to the outside conditions when brought home from the plant nursery, where they are coddled in little sun or even just bright shade.
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prairiemoon2 z6b MA
last year
I've had Endless Summer for about 8 years at least and it has a couple of blooms once in awhile. Most of the time, it dies back to the base and it's supposed to bloom on new wood, but...I'm in z6b and I'm replacing mine.
woodyoak
last year
I know I have posted pictures of a neighbour's Endless Summer hydrangeas before. They do beautifully and she not 'a gardener' and doesn't do anything special for them. They are in a raised bed on the SE side of her house. They look like this by early July and stay like that for a long time:

This is what they looked like on May 20 this year as the foliage was emerging both from the base and at the lower end of the stems (you can see that she prunes them down in the fall, which you aren't supposed to do.... She also doesn't give them any winter protection.):

So I'm not sure what she is doing 'right' but she grows them well here in Zone 5(b)!
HU-27711313
Original Author
last year
Great thank you,I have them growing and they're green and growing they had a rough time time last year,they were new,blooming then in last summertime had problems. This year they've grown and very green no buds but getting small ones I just want to know how tall they could get 3-4ft or more like

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Endless summers hydrangea

Comments (5)

Christopher CNC

gardengal48 (PNW Z8/9)

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prairiemoon2 z6b MA

woodyoak

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Endless summers hydrangea

Comments (5)

Christopher CNC

gardengal48 (PNW Z8/9)

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prairiemoon2 z6b MA

woodyoak

HU-27711313Original Author

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