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Hydrangea macrophylla Endless Summer BloomStruck ('PIIHM-II'

Hydrangea macrophylla Endless Summer BloomStruck ('PIIHM-II'

Common name hydrangea
Family hydrangeaceae
Life cycle shrub (Z4-9)
Flowers pink or violet-blue
Size 4-5'
Light sun-part shade
Cultural notes evenly moist soil

Our first new planting in our Houston garden was also our first venture into the popular Endless Summer series of hydrangeas. As with many hydrangeas, flower color varies with soil pH, its 4-5" mophead blooms taking on a pink hue in alkaline soil and violet/blue in acidic soil. We'll consider it our soil pH test, since we haven't gotten accustomed to our new garden's soil characteristics yet. We planted it in a corner between our house and the patio that gets morning sun. Amy loves hydrangeas, so I hope this one, which is supposed to be a heavy bloomer, does well for us. So far, I'm surprised at its reluctance to burst forth in new growth in early spring – while the tropicals were already doing their thing, Ms. Hydrangea took her time, not doing much of anything until May. Flowers arrived in late May, and are in the bluer range of the spectrum, so I guess that means somewhat acidic soil. However, the second flush of bloom, which appeared in late November (photo at right), ventured more into the pink realm.

In our garden, this plant grows in the following area: foundation border

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