CrapeMyrtle not blooming

docmoo(6)September 15, 2011

Please, This Lagerstroemia indica was purchased 4/05 and had an all right bloom that first year. It also had good new growth at ground level the following spring and a really good bloom that next summer. HOWEVER, despite vigorous and even enormous growth every year since then (over 12' in height)... barely one stinking bloom! :( I have tried to be patient, but after 5 years !?! I feel like a fool ... did I just get a lemon? or is this foliage from a grafted root stock? Please ... any suggestions? Thank you

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rhizo_1 (North AL) zone 7

Does your crapemyrtle die back to the ground every winter? Does the new growth get zapped by late freezes? Are you pruning it every spring?

That's what it sounds like.

    Bookmark   September 15, 2011 at 10:38PM
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ken_adrian Adrian MI cold Z5

i cant grow CM's in my z5 .... where are you ???

hyper growth can be a function of hyper-fertilizing.. and if you are doing such with the wrong formula ... then you could be increasing green growth at the cost of bloom ...

most flowers set their buds in late summer.. for next spring.. ANYTHING ... including a z5 winter.. can kill those buds resulting in no flower.. as well as the prolonged frost/freezes associated with z5 ...

you do understand that you are zone pushing to the max????


    Bookmark   September 16, 2011 at 7:50AM
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thanks RHIZO: yes I prune it to the ground every spring, even if I didn't do that, God prunes it anyway ... all new growth on all my CM's come from the ground,all new every spring. This is the only CM that isn't blooming ... so that's my ?, why this one?

and thanks KEN: southern missouri,north of springfield which is zone 6; I have areas of my yard which I can grow Zone 6, but otherwise I am completely 5. As I mentioned to rhizo, this is not my only CM and I have seen tree-like unpruned CM in neighboring Buffalo, MO !?! What species is that? am soooo jealous. So, what's up with this one?

    Bookmark   September 16, 2011 at 10:27AM
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brandon7 TN_zone(7)

It's putting all of its energy into growth instead of blooms. It could be fertilization/improper-fertilization, just the way that cultivar is reacting to being coppiced each year, or a combination of both.

    Bookmark   September 16, 2011 at 7:52PM
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rhizo_1 (North AL) zone 7

Ken, Crapemyrtles bloom on brand new growth, the very tips of the branches. Thus, they CAN be pruned in the early spring and still bloom, but we all know that heavy pruning stimulates a great deal of new growth....a plant can't readily devote all of that energy to excess top growth PLUS flower.

But, docmoo, we really can't speculate any more than we already have why this particular plant is not performing for you while your others are. Call it a mystery.

    Bookmark   September 17, 2011 at 1:03AM
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thanks rhizo
thanks brandon
hate mysteries, and will try extra phosphorus next spring!
m :)

    Bookmark   September 17, 2011 at 8:27AM
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Do it now! Put bloodmeal in the ground now in the fall all around the shrub.
Do it every fall and let it gradually disentagrate between now and next July.
My crape myrtle grew alot the second year, no fricking blooms the whole summer.
I'm in South Carolina, and they were blooming in the cracks in the street!
No, not mine.
That fall I bought blood meal from Home Depot and put it in the soil and then mulched real good on top of it.
THe next summer, low and behold blooms!
I do it every year now, I have really poor soil, it blooms every year.
That reminds me, I have to go get some.....

    Bookmark   September 18, 2011 at 10:27PM
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thanks butterfly !

    Bookmark   September 21, 2011 at 2:28PM
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brandon7 TN_zone(7)


Blood meal is a nitrogen source.
Nitrogen encourages green growth.
Excessive green growth frequently results in less blooming.

Blood meal often attracts some pests like digging dogs.

    Bookmark   September 21, 2011 at 10:30PM
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