Ask a Question forum→Identifying a hydrangea

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Lakewood, CO
BadAssIrishLass
Jun 1, 2020 12:18 PM CST
Hello! I was hoping someone may be able to assist me in identifying a hydrangea I received as a gift. What I do know: It is most likely a big leaf, however, it grows on new wood, not old wood. It likes morning sun, no afternoon sun at all. It resides now happily in on and off morning sun and dappled shade the rest of the day. Unlike the rest of my hydrangeas, the leaves on this one are almost a chartreuse color, not the deep green of my other plants. The person I received it from, stated that the only thing she knew about it was that is was (supposedly) hardy zones 5 through 9 and that it has pink flowers, most likely mop heads, from what she described. The reason I'm asking is because I got her last year and she did not bloom so I'm hoping to be able to identify her to figure out the best way to take care of her. I'm sorry if this info is vague. I would sincerely welcome any help at all...I want her to be happy in my garden!! Thank you for your help!!
Thumb of 2020-06-01/BadAssIrishLass/bf45d3

Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Dog Lover Region: Texas Salvias Roses Hibiscus Plumerias
luis_pr
Jun 1, 2020 12:39 PM CST
From the foliage, it looks like a hydrangea macrophylla or serrata (they are very similar). It produces either a mophead type of a bloom or a lacecap type of a bloom.

Some of the new macrophylla varieties bloom either on old wood or on both old and new wood.

Varieties with colored blooms will bloom pink in alkaline soils, blue in acidic soils or purple in slightly acidic soils.

They prefer morning sun (until 11am or so), dappled sun or full but bright shade.

Stems that survive from last year will bloom in early Spring if their flower buds did not get zapped during winter. If it blooms only on old wood then you would lose the chances of getting blooms until Spring 2021.

Stems that start growing in Spring 2020 will develop blooms in mid-to-late summer 2020 provided that the variety is a remontant hydrangea like the Endless Summer Series, the Let's Dance Series, etc. Otherwise, if this plant blooms only on old wood, the new stems will develop invisible flower buds in mid to late summer 2020 and these buds will open in Spring 2021.

Let me know if you have any specific questions about its care, etc.
[Last edited by luis_pr - Jun 1, 2020 4:55 PM (+)]
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Lakewood, CO
BadAssIrishLass
Jun 1, 2020 5:08 PM CST
Thank you for your help! I do know for sure it blooms on NEW wood, not old wood. Ill keep baby-ing her along. Thank you again for your insight!
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Dog Lover Region: Texas Salvias Roses Hibiscus Plumerias
luis_pr
Jun 2, 2020 1:25 AM CST
If it blooms on new wood, the new stems that the plant put out this Spring would develop blooms anywhere from mid summer to early Fall. The stems need to be able to get tall and "old" enough to first develop the flower buds and then open them. This needs to occur before winter arrives and makes the plant want to go dormant due to reduced light levels and cold temperatures.

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