Some of these are very new introductions (Double Delights series, Next Generation series)- like this season - so there really is no consumer history with them yet. Others like the Endless Summer series, Forever and Ever series and Let's Dance series have been around for a few years and have established some history.

They are all going to be similar in behavior, with an ability to bloom on both old and new wood. In colder climates, the stems and/or flower buds of the old or previous season's growth can be damaged by winter cold and like all other mac's, should undergo some sort of winter protection to ensure these stems/buds make it through winter. You will still get flowering on new growth regardless, but it may not appear until later in the season and perhaps not so prolifically as the older growth. IOW, exactly how remontant or everblooming they may be will depend on where you are located, what your winter climate is like and if you afforded any winter protection. "All summer blooming" is not guaranteed :-)

How widespread the availablilty of the newest intros will be is up for grabs. Some retailers opt not to carry them until they've "proved" themselves for a season or two; others are hot to jump on the newest stuff available. You may or may not be likely to find many of the newest ones available this season. Next year they will probably be flooding the market :-)

And this is from a couple of decades of working in the retail nursery industry.

Thanks for the reply gardengal48 the info was very helpful.Our local garden show is going on this week thought there would be a chance to grab a few there.If it takes a season or two for the new rebloomers to become available i will just have to get them as they pop up.

ENDLESS SUMMER and BLUSHING BRIDE are on my list for purchase this summer. Have yet to see mature plants.I hear the blooms are doubles on BLUSING BRIDE and fade to deep red on the bush as they age is this true?

Managed to find Hydrangea macrophylla Double Delights 'Expression' at HERONSWOOD.
Their reviews are so so mostly about really small plants.

Last year around august,found a few hydrangea 3 gallon hydrangea for ten dollars each.Pia,All Summer Beauty, Glowing Embers, lime light and Preziosa.
The Glowing Embers was the one that got me thinking the most over the winter.Love the almost bronze fall color dislike that it may not bloom at all one year or many.I need some flowers ever year at least two a year so it can stay in the garden.

Preziosa is supposed to be "free flowering" does this one really produce?These shrubs in the pictures are not my plants.Keeping a visual log just helps when discussing plants with subtle differences.

Preziosa

All Summer Beauty

Pia

Glowing embers

Limelight

'Blushing Bride' has semidouble flowers and fades to a rosy pink blush...not a deep red :-) White flowered macs tend not to offer that intense color change as do many of the paniculatas.

'Preziosa' is very nice selection and quite popular. It offers flowers that go through a range of colors seemingly independant of soil pH and has great fall color. And it is reputed to be a bit more cold tolerant than most macs, no doubt something to do with its serrata parentage.

In your zone, to ensure reliable flowering and benefit from the earliest flowering of most remontants, you should probably offer winter protection. There are a number of very good threads in the archives of this forum that will offer suggestions on how to accomplish this.

Doing a google search on remontant hydrangeas, brought me to this thread. I own 'Wedding Gown' & 'Pistachio' or 'Glam Rock' as its known across the pond. Both hydrangeas do not get huge figure about 3' X 3'. 'Wedding Gown' I have noticed, in our zone 7 winters w/o protection dies almost to the ground and emerges with new growth in spring. The plant blooms on new wood. I have not encountered 'die to the ground' with 'Pistachio'. Both are well behaved in a Northern exposure and a Western exposure in the shadow of a magnolia.

Useful info, jazzmom516. Thanks. Just for the sake of curiosity, how far away from the trunk and from the drip line of the magnolia are the two shrubs planted?

The magnolia's trunk is about 15 - 20' away from both hydrangeas. It's Magnolia 'Jane'.

Does 'Wedding Gown' really get that red color or is that a little unusual ?

Wow! Wedding Gown is beautiful: summer and fall!

Yes, WG c-a-n attain colors similar to those of some oakleaf hydrangeas but the weather has to cooperate. I do not have it but, because my summer temps are usually in the 100s, it may perform slightly different due to very warm temps at the time it tries to switch to the red/purple colors (may not go red/purple, may go brown earlier instead, etc). The only way to know for sure is to try (buy one) or ck with someone who has WG near you. Surprisingly, the foliage color change is rarely mentioned in ads.

You should expect to see that color by October at the latest.

Luis, you mean it c-a-n under what conditions ? Would it become more red in a winter climate or a warmer climate ?

If the weather is too hot when WG chooses to switch to those really nice tones of pink, it may decide to brown out instead. For example, down here, where normal summer temps include daily 100+ temps thru September, some paniculatas go directly from white to brown. Burns me up as I do not get to enjoy seeing the nice magentas of VS.

But I can also see the plant's point of view (you want me to do whaaat when it is still sooo hot?) Hee hee hee!!! Oh me.