I think the descriptions say 4 feet (max), but my Blue Billow is considerably lower -- maybe 2 feet. It's only been in two years, so it undoubtedly has some growing to do, but I know it's supposed to top out at 4 feet and I imagine you could keep it lower with judicious pruning. It's a GORGEOUS lacecap!
I am new to the hydrangea world, so thanks to anyone for replying to what is likely a basic question...given that the color of the blooms is a response to soil content (except for the whites) will the flowers of all plants growing in the same general area, even among different varieties, end up the same color - and by extension then - are Blue Billows always blue?
Hi Amanda - It may be worthwhile for you to check out 'Royal Majestics Collection' at www.GardenersConfidence.com' a Michael Dirr intro in '07!
I got 'Midnight Duchess' last Spring '07 ... didn't flower for me that 1st season but the dark green foliage w/dark red petioles & purple-black, sturdy, limbs were worth a wolf whistle! This season, never a day passes that I don't marvel at her majestic elegance, befitting her 'Midnight Duchess' name! Â;)
I truly tip my hat off to Dr. M Dirr ... he'll perhaps hate me for referring to this, grand lady of my (8) H serratas, as Sofia Loren! Her blossoms are absolutely gorgeous, some pearly-hint of blue/vibrant blue fertile centers at maturity & some, hint of pearly pink that likewise, mature to mix of deeper lavender & persian pink. Some infertile florets peek through the center cluster of fertile beads. Absolutely stunning to me!
I counted 12 flwr cluster buds when she started out, now she has produced a couple more. I have been photographing her, practically, daily & will share, after all the wonders that she opens for me to behold!
Her majesty will max at 4'x4' and is prune-able to the hgt spec you wish for. Most of the blooms were produced on tips of axillary limbs from old wood, others came from center canes, that must have grown from old wds, barely under the surface (so, needs winter care). The storms that Ma Nature doled us this season (& still) never phased her, so far (with fingers crossed) ... a grand tough, lady she is, indeed!!! Â;)
Sorry for this copious testimonial-response to your simple ?? ... 'am just so is awe!
"Bluebird" is an old variety, for me tops out at about 3 1/2 feet, the flowers are smaller and more delicate than some of the newer cultivars, and might have fewer sterile (large) florets than most people want, but I love it.
As to your color question, all of the non-white H. macrophylla and H. serrata (closely related, H. serrata used to be considered a subspecies of H. macrophylla) cultivars will respond color-wise to soil pH/aluminum, but they will respond differently.
You say you are a newbie, forgive me if this brief explanation is too basic: color depends on the amount of free aluminum available to the plant in the soil. More aluminum results in blue, less results in pink. The amount of aluminum is in large part dependent on the soil pH - the more acidic, the more free aluminum ions are available. So, if you acidify your soil, you will be promoting blue color; if you add aluminum sulfate, you both acidify and augment the aluminum, and it's kind of a "double-whammy" for getting blue. All that said, the different cultivars have different senstivity to the aluminum - some will tend more toward pink or blue in certain acidity conditions than will others. And, all of the flowers on the same plant will not respond exactly the same, which is why you so often see a plant with flowers of blue, pink, and every shade of lavender in between, all at the same time. Usually, if the cultivar has a color in its name, such as "Blue Billow," it will tend toward that color over a wider pH range, but you can still change it.
Hi Steve - I got 'Blue Frost' ... excited to see the buds flash blue ... they were pink, as the blossoms matured & the fertile centers fuzzed up, at best they were lavender. I called the nursery - suggested I applied A S ... I didn't plan on having to amend, as per name 'Blue Frost'! I should just wait for Blue Billow to show up here, hopefully, sooner than later! I decided to keep him anyway, as I have tons of blues & purples (non-Hs, however).
I just posted the same question before I saw this thread. Blue wave and Blue bird both grew to big (5'x6') and I have seen pictures of billow blue that look like they are large plants. They where planted in a 12' x 3' x 8"deep concrete planter. What mail order nursery has information on Blue frost. Paul
Hi Paul - I got my BF H serrata, Korean Dwarf (will max at 4'x4') from one of our local nurseries - a Hines Horticulture intro. The tag says to visit "www.hineshort.com" for more info. I did & found no more than what was given on the tag. My nursery guy will inquire a little more about this cultivar for me.
I am impressed with the larger/older foliage - dark green that turns to a hint of wine. I'm not sure if this is a feature, the tag didn't say - I'm curious if, like Big Smile, will give great foliage colors in the Fall.
ctlady_gw
amanda_hOriginal Author
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