Mimosa Tree Won't Bloom

swctAugust 4, 2007

I planted a Mimosa Tree 3 years ago, and it appears to be healthy (see photo). However, there has never been a single bloom on this tree. Meanwhile, Mimosa's growing in ditches by the side of the highway are blooming like crazy at the moment.

Do some Mimosa's not bloom? Could mine be diseased? Any advice would be much appreciated. And please, no lectures on how this tree is a noxious weed. Up here in New England, Mimosa's are very well behaved (except for mine which won't flower!) Thanks.

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lkz5ia

""""Meanwhile, Mimosa's growing in ditches by the side of the highway are blooming like crazy at the moment."""

Not Invasive? Then what do you call that?

Your mimosa could be getting too much shade, or different genetics of individual trees flower at different ages. Maybe your mimosa gets too much TLC. If it is getting a good fertilizer, it may well be putting all of its energy green growth.

    Bookmark   August 4, 2007 at 2:23PM
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snasxs(7-8 VA)

What an elegant garden plant! It could be that the tree is young. Let it be. They are susceptible to fusarium wilt. Sometimes blooming weakens the plant and leads to declining. Also, if you see a blooming one by the side of the highway, remember it. Check to see how many years it flowers. Due to internal weakness, I think most mimosas die at a very young age for trees.

    Bookmark   August 4, 2007 at 11:31PM
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alexander3_gw(6 Pennsylvania)

>""""Meanwhile, Mimosa's growing in ditches by the side of the >highway are blooming like crazy at the moment."""
> >Not invasive? Then what do you call that?

I would not call a few trees in ditches invasive. Here in zone 6, I make an 80 mile drive to New York. I counted 12 mimosas in bloom last time (July). They were popular ornamentals in this area decades ago, but have not taken over in that time.

I understand they *are* a problem in the South. They are not a problem here.

To swct: My mimosa looks a bit bigger than yours, and bloomed for the first time this year. I think yours will bloom next year.

Alex

    Bookmark   August 5, 2007 at 2:59AM
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davealju(z5ME)

Swct, I know what you mean! I planted one of those here in Portland about 6 years ago. The last two winters were fairly mild and now the tree's about 12 feet tall and I thought for SURE I'd see blossoms this year, but no. Mine looks alot like yours and I've noticed that it's going through a growing spurt now also; maybe some of the new growth will have late flowers.

I'm sure yours will bloom next year.

    Bookmark   August 5, 2007 at 8:11AM
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swct

Alexander - Thanks for sticking up for me! Mimosa's are not a problem in CT or elsewhere in New England. I count a total of eight Mimosa's on my 55 mile drive on I-95 to NYC. I have seen Mimosas every few yards on roads in Virgina, and that is what I call invasive.

I will keep my Mimosa another year or two and hope for blooms. I hear they are great hummingbird attractors and at the moment hummingbird activity is at its peak. Thanks for the advice.

    Bookmark   August 5, 2007 at 10:08AM
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swct

I am happy to report that my Mimosa tree has ONE bloom. The bloom is a deep pink (mine is Albizia julibrissin 'Rosea'), and I'm sure next season it will have many more. Despite all of the negative opinions on this tree, it is one of my absolute favorites and will be a big hit with the local hummingbirds. A taste of the tropics, in my Connecticut yard...

    Bookmark   August 11, 2007 at 10:04PM
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snasxs(7-8 VA)

That is gorgeous! Congratulations. The mimosa has got your message.

    Bookmark   August 11, 2007 at 10:26PM
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lkz5ia

I have a Albizia julibrissin ÂErnest Wilson seedling. A place not far from here, The Fragrant Path, says this about this tree:

"Silktree, is commonly seen in the South, but is a real pleasure to behold in zone 5. The variety ÂErnest Wilson aka ÂRosea has been blooming all summer long in our gardens for many years. The red powder-puff flowers have a fragrance that reminds me of ripe peaches and are very attractive to Swallowtail and other butterflies. In China it is known as the Happiness Tree and is an important medicinal plant. Zone 5 when established."

    Bookmark   August 11, 2007 at 11:26PM
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alabamatreehugger(8)

""I would not call a few trees in ditches invasive. Here in zone 6, I make an 80 mile drive to New York. I counted 12 mimosas in bloom last time (July).""

That's the way they started here too. You will see more and more as the years go by.

    Bookmark   August 12, 2007 at 11:23AM
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quirkyquercus

Have you ever been to CT, the place is beautiful. If they want to trash it, let them go right ahead. No sweat off our back.

Tourism is a big industry in new england, let those ghetto palms take over and lets see what the fall color is like then.

    Bookmark   August 12, 2007 at 11:48AM
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januszb(z5 IL)

>>I am happy to report that my Mimosa tree has ONE bloom.I like the shape of your tree I love the tropical looking leaves. Even if in my zone Mimosa would never flower I would gladly have this tree in my garden. I am looking for any nursery in northern Illinois that have this tree but I also wonder how fast this tree grow from seed? I have three Catalpa trees that I started 4 years ago from seed and one in my front yard is already 12 feet tall...this year my Catalpa for the first time had a lot flowers and I see many long seed pods... if anyone have seeds of mimosa I would love to trade redbud or catalpa seeds for mimosa seed.

JanuszB

    Bookmark   August 12, 2007 at 1:04PM
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swct

Yes, Connecticut is a beautiful state with sugar maples and oaks dominating our rural countryside. There is no way "ghetto palms" will ever become an invasive pest up here. Our winters are simply too cold. Just wait a few years??? Mimosa trees have been grown as ornamentals in Southern New England for many decades and seeing one of these trees by the side of the road is very rare. Save your trash talk for Zone 7+ gardeners and leave us well informed Zone Sixers alone.

    Bookmark   August 13, 2007 at 6:20AM
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swct

JanuzB -

You can find Mimosa seeds online:

www.trees-seeds.com/Seeds_for_growing_Silk_Trees.html

Also, Forest Farm (forestfarm.com) will ship you saplings. This is how I obtained my tree in the above pictures. Forest Farm's online catalog does not show Albiza 'Rosea', but their print catalog has it. If interested in a live tree, give them a call. Good luck.

    Bookmark   August 13, 2007 at 11:01AM
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kadasuki(z6 NW AR)

A funny mimosa story: When I was 12 over 40 years ago, in the middle of (extremely hot and humid) summer my dad and his buds, after drinking a 6 pack of beer, drove to the horse pasture down the road (central Louisiana) dug up a fully grown at least 20 foot tall in full bloom mimosa, dragged it behind a pickup truck down the neighborhood street and planted it in our back yard in a swimming pool sized crator they dug with friends bull dozer, drank another few beers, and the tree survived, thrived, and we climbed it for years. What an incredible memory!
ROFLMAO!
KAT (from the deep south)
PS I'll LOVE THEM FOREVER

    Bookmark   August 13, 2007 at 11:28AM
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snasxs(7-8 VA)

Is mimosa tree still considered invasive in zone 7?

In my region of North Virginia, many invasive trees continue to thrive on disturbed land. I still see a ton of "trees of heaven" and Japanese honeysuckles alone the road. I hate them. The land-owners are not doing anything to remove them.

However, I only see one mimosa; and it has died naturally this year. Just a couple years ago, there appears to be a large number of them. I think some disease, or their short life-span, has kept them in check.

    Bookmark   June 11, 2008 at 1:40AM
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markinspringborooh

To alabamatreehugger, and others from the South who have had problems in the past with wildly-spreading mimosas in your backyards :

Don't just think 'automatically' that people in the North have the same issues with Albizia !!

On the contrary, we've grown several species of mimosas over the years... with VERY MINIMAL 'escape' of them into adjacent areas.
...probably has alot to do with our shorter growing seasons, I'd imagine.

But we sort of live 'on the edge' with them in S. Ohio with just cold hardiness issues, alone.

I remember...during the extremely cold winter of '76... that my dad pretty much lost the entire batch of them he'd (illegally) dug up & brought back from a canoe trip our family took in Tennessee, and then planted in our landscape in the very early 70's.
It had gotten down to -25 F at one point the winter of '76 in the Cincy area, with relatively little snow cover for insulating tree roots, if I remember correctly.
That wiped them out.

    Bookmark   June 11, 2008 at 10:48PM
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jqpublic(7b/8a Wake County NC)

A lot of Mimosa's here. Many look weak. We have a HUGE one on the path to a local park. It is the thickest Mimosa I've ever seen. I think many are dying off the past couple years b/c of our drought and excessive heat.

    Bookmark   June 11, 2008 at 11:09PM
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markinspringborooh

(I forgot to mention my original thought !)

I agree completely with lkz5ia that too much 'N' could very well be the problem with swct's mimosa not blooming.

I only give our mimosas relatively sparing amounts of organic tea at times, and /or a yearly composting along with the rest of the landscape and lawn.

I'd imagine high N synthetic ferts could indeed be pushing out too much foliage.

...or too much shade to successfully go to flower.

All mimosas are bisexual...so cross-pollination from one tree to another simply isn't an issue.
Although when they're planted in GROUPS, I've noticed, they do tend to flower better. But this could be because of the 'mutual protection' factor that a copse of trees usually provides, more than anything else.

In all the years I've been growing mimosas I've only lost ONE to wilt disease. Probably 12-15 years ago. I noticed at that time that the somewhat clayish soil had become unusually COMPACTED in and around this tree.
So, since then I've made sure any new ones I plant...are planted in a tilled area where the native clay's been incorporated with quite a bit of SAND and COMPOST made of leaf & manure origin.

Knock on wood....I haven't seen wilt disease since.

    Bookmark   June 11, 2008 at 11:52PM
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snasxs(7-8 VA)

markin spring borooh,

I love the chocolate type (purple) Mimosa. They look very interesting. Do you have them?

    Bookmark   June 12, 2008 at 12:41PM
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aezarien(7b)

I'm only one zone down and while they are not widespread they are not well behaved. One of my neighbors had one and I had to continuously pull them out of my yard. And I mean hundreds of them. They are certainly not kudzu but they are just as bad about spreading as privet if not worse.

I love mimosas. I have a few in pots on my screened in back porch that I am going to try to bonsai. I would never plant one in my yard though.

    Bookmark   June 12, 2008 at 4:49PM
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chills71(Zone 6b Mi)

There are 3 of these within about 5 miles of my house (we're pretty serious gardeners and have been up and down every street numerous times...lol).

We lived next door to one (which is where I got seeds years ago) and while I sometimes had to pull a volunteer, it certainly wasn't too big a problem. If a volunteer was left I never noticed one survive a winter, eithout protection or having grown in a pot to get some size first.

They leaf out late here which leaves us wondering each year if they're coming back or not. I have a potted one that comes in and out yearly and it may end up in the yard, or maybe not.

Barring some sort of hardiness mutation, I'm agreeing with the other zone 6ers that this plant is definitely better behaved in the north than it is in the south (and my last 2 winters barely reached zone 6 lows in my yard)

~Chills

    Bookmark   June 12, 2008 at 9:35PM
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markinspringborooh

snasxs,

I just received some seeds recently.

I started a tray of 10 seeds of Albizia j. Durazz on my windowsill about a month ago, and I've only had 4 seeds emerge. They are all about 4" tall now.

IF I can continue to keep both of our two cats from eating them, they should be OK to transplant outside in the shade in a couple weeks.

    Bookmark   June 13, 2008 at 12:55PM
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vieja_gw(z7NM)

I love the aroma of the mimosa blossoms & it is a very pretty smaller light shade tree! BUT, the spent flowers & seeds are a mess (isn't the original poster's photo show it by a swimming pool?!!) & seedlings come up all over here. Still, in the right place I'd love to have one again in the yard.

    Bookmark   June 14, 2008 at 3:38PM
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ladede(6)

I have a small young mimosa and it hasn't bloomed , grows nicely, but shouldn't it bloom. Full sun and they are all over the place in my area blooming right now.

    Bookmark   June 21, 2008 at 4:42PM
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ascholz

markinspringborooh,

Do the seeds come from the pods or the flowers?

    Bookmark   July 8, 2008 at 1:34PM
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mbuckmaster(7B/NC)

It's funny...this topic was on my mind as I drove back from work today, admiring and despising the dozens of mimosa trees lining the ditches here in North Central NC. I noticed that while many were flamboyantly blooming, some that were just as tall and established were not blooming at all. Are mimosas dioecious?

    Bookmark   July 8, 2008 at 9:24PM
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chrsvic(z6 OH)

I'm speculating that they are monoecious. There are some blooming now in the Dayton, OH area, specimens i speculate that are at least a couple of miles from another specimen.

They are a gamble in our zone. I planted one last year, died to the roots, now i have a waist high thicket of suckers. Some folks have some multi-trunked trees in bloom, about twenty feet high. (im actually in Zone 5b, ive moved further north since i registered.)

I planted a crape myrtle that did the same thing, died to the roots and sprouted back.

    Bookmark   July 8, 2008 at 10:38PM
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krazyaroider(Hamburg, NY 14075 Zone 6)

Thompson & Morgan and J.L. Hudson both sell Mimosa (Albizia julibrissen seed.

    Bookmark   July 9, 2008 at 10:00AM
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Embothrium(USDA 8 Sunset 5 WA)

Trees of all kinds raised from seed may take many years to reach flowering size, vary widely in when that point is reached. Vegetative fractions like grafted or cutting raised plants have the sexual maturity of the parent specimen and are not typical.

If some silk trees are growing wild there then that means there is some potential for a larger problem to develop. Some of the top priority noxious weeds listed in my state are also represented by small infestations at this time. The thinking behind Class A listing for these is to accomplish preemptive strikes.

Pampas grass has been frequently planted here for a long time but I did not see it growing wild until recently. Now I am seeing growing in the edges of highways and where streams back up before entering culverts all over the place.

    Bookmark   July 9, 2008 at 6:07PM
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singleton165(z5 NH Seacoast)

I brought a mimosa seedling home from visiting relatives in SE MO probably 7 years ago. Every year I insist that I'll shovel prune it if it doesn't bloom that year...but I just can't do it. This is one of the few years that it did not have much if any dieback...so I've got my fingers crossed.

    Bookmark   July 27, 2008 at 6:59AM
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davealju(z5ME)

My Ernest Wilson mimosa has started blooming here in Portland for the first time. It's about 15 feet tall at least; only has about 4 blooms on it but sure does look nice. Like singleton's on the NH seacoast it didn't get much dieback this past winter and in fact I didn't even protect it during last winter except to throw snow around the trunk.

    Bookmark   July 30, 2008 at 8:00PM
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willyt

Who was trash talking CT? Was a post deleted or something? I'm confused by the defensiveness.

For you guys in New England. How long do Mimosa live there....20-30 years or so? I like the looks of the tree but they just don't live very long down here at all.

    Bookmark   July 31, 2008 at 10:46AM
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alexander3_gw(6 Pennsylvania)

>Who was trash talking CT? Was a post deleted or something? I'm confused by
>the defensiveness.

It's an ongoing thing here....most threads about mimosa include someone from the south complaining about what a horrible weed it is and telling us that we shouldn't plant it, and that it will soon take over the Northern states as well.

    Bookmark   July 31, 2008 at 11:01AM
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cascadians

Have 4 mimosas, 3 straights and 1 rosea. 2 straights planted Dec05 in raised patio are now blooming prolifically for 1st time. Will take pictures and post them. Very beautiful. Elongating branches festooned with fluffy flowers. Rosea planted in same raised patio, young, small, dies back each of last 2 winters, no blooming yet. Straight planted in front 'swimming pool' has a lot of die-back and no blooming, will transplant it this winter. It does not get enough heat and sun to thrive.

    Bookmark   July 31, 2008 at 2:16PM
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willyt

It's an ongoing thing here....most threads about mimosa include someone from the south complaining about what a horrible weed it is and telling us that we shouldn't plant it, and that it will soon take over the Northern states as well.

Sorry I just don't see that in this thread at all. Perhaps quirkyq is taking things much too personnaly.

    Bookmark   July 31, 2008 at 3:36PM
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alexander3_gw(6 Pennsylvania)

An example in the most recent mimosa thread:

Here is a link that might be useful: mimosa thread

    Bookmark   August 1, 2008 at 10:19PM
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lydia1959

I have a 6 year old Mimosa that hasn't yet bloomed, but am happy to find out that it will bloom eventually.

I started mine from seed .. soaked it in warm water for about 8 hours, then planted it in a small container until it was large enough to be planted outside. It's done quite well and has a beautiful shape.

I am 50 miles west of St. Louis. There are not a large number of Mimosas here.. but if you drive a hundred miles south you'll see them everywhere.

    Bookmark   August 21, 2008 at 4:07PM
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cascadians

My 2 patio finally-blooming ones, planted Dec05 so in the ground 2 years 7 months when these pictures taken:

    Bookmark   August 21, 2008 at 4:21PM
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famartin(z5 NE NV)

I'm originally from central NJ, and mimosa is definitely LESS prevalent now than it was 15 years ago when I was a kid. We had quite a few larger specimens in my neighborhood back then, but now there are none. The wilt disease took all the large ones back in the 90s. It was horrible to watch, seeing as I really liked the tree. Someone just started growing a young one down at the end of the street... we'll see how long it lasts. There is a mature one about 2 miles away... I thought it would be dead by now, but its still alive and about 20 feet tall. Still, in northern zone 7 and points further north, its definitely NOT invasive, except perhaps in very disturbed lands where quite frankly its nice to see anything grow. It certainly doesn't take over natural areas.

    Bookmark   August 25, 2008 at 10:57AM
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tld6255

I just planted a bare-root mimosa this summer & it has leafed out nicely. (I was optimistically hoping it'd bloom next year but the above posts make me think I'll need to be more patient!) I'm wondering what all I should do to protect it for winter?? Here in west-central Ohio we've already had several light frosts but the rough stuff isn't far behind. Suggestions??

    Bookmark   October 28, 2008 at 2:48PM
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davealju(z5ME)

this message is for tld6255: you might try wrapping your mimosa, the trunk, and some of the branches, in a couple sheets of newspaper and then pressing aluminum foil over that; that seems to have helped mine get through Southern Maine winters, which can drop to -10 to -15 degrees at times. Btw, did you get the hardier type, the Ernest Wilson mimosa? I have one of those now which is about 20 feet tall.

    Bookmark   November 4, 2008 at 5:46PM
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clpcode4

I have two huge Mimosa trees in my back yard, and they dont bloom at all! They drop those horrible pods but no flowers. I live in Colorado, maybe thats why? I know for a fact that they were planted in 1962, everyone tells me they are short lived but mine are rockin on. Why wont they flower?

    Bookmark   March 13, 2009 at 4:35AM
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alexander3_gw(6 Pennsylvania)

If your trees have been forming pods then they have been flowering. If you have not noticed the flowers, which are very showy on mimosa, then one possibility is that your trees are not actually mimosas. Locust trees have similar leaf structure as mimosa, do not produce showy flowers, and do drop large pods. Do a google image search for "locust pod" and see if that is what you have.

Alex

    Bookmark   March 13, 2009 at 9:09AM
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paul_44

Maybe its a male!

    Bookmark   March 14, 2009 at 4:28PM
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clpcode4

I will check out the Lotust tree, thanks for the help.

    Bookmark   March 16, 2009 at 4:39AM
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clpcode4

Ok so I looked up the locust tree, and Yeah looks like my trees. Except, they also flower, pretty white fragrant flowers, and mine dont have any flowers, just lots of pods. So I dont get it?

    Bookmark   March 16, 2009 at 4:49AM
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redhead_70_yahoo_com

I planted my mimosa 3 yrs ago. am still waiting on it to bloom. mine doesn't get seed pods yet either... every year, i watch it grow taller and taller, and grow by leeps and bounds, but still no flowers :(

    Bookmark   July 10, 2011 at 1:14AM
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