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View Full Version : Hibiscus NOT Blooming?!?!


JBRONCFAN
08-15-2012, 05:45 PM
Guys.....this is personal.

20+ years this beautiful Hibiscus blooms in my Dad's yard so big you can see it when you turn onto his road.

This year........barely two blooms.

I mulched his yard for the first time ever and even the internet says to mulch it up. The one mistake I made is I mulched it all the way up to the roots!!! Didn't leave the custom 1 foot of no mulch space and the web says I made it hard to breathe!!!

Every year it responds to water. Lack of it and the plant wilts and a good shot of water and it stand back up in an hour. With the mulch this never happened.

I cleared out the area underneath a few days ago and am hoping for an end of the 9th homerun of blooms. Any comments?

cgaengineer
08-15-2012, 05:51 PM
I have 5 of them...they need a good balanced fertilizer.
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JBRONCFAN
08-15-2012, 06:22 PM
Read on a website that too much Nitrogen could mess things up. This is the second year I am doing more than just cutting my dad's grass for him. I am actually landscaping it, putting money into it which I find fun. I may have accidentally allowed the Nitrogen I was spreading on the grass to spray into the plants, very possible.

I will for now on hand fertilize the grass by the plants and use a spreader for the rest of the grass so NO Nitrogen gets into any plants.

cgaengineer
08-15-2012, 06:31 PM
I feed mine what I put on my lawn...Lesco 24-2-11...seems to be working well.

http://i40.photobucket.com/albums/e223/cgaengineer/9C956F2F-C9D2-40F2-A2DB-C4548239C2B5-184-0000001DCFF7C875.jpg

http://i40.photobucket.com/albums/e223/cgaengineer/D54BEDF5-C674-4337-8481-8D44F5FA6686-184-0000001DD7F81F68.jpg
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cgaengineer
08-15-2012, 06:36 PM
These Hibiscus are actually from home depot...they had thrown them in a waste pile outside of parking lot...stripped of their pots and near death. With some fert and water they have don very well.
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JBRONCFAN
08-15-2012, 11:28 PM
They look nice. My Hibiscus is more exotic and not only does every single bud bloom but they bloom VERY large like, you could stick your head in them.

I was kinda happy that after I applied the mulch, the Hibiscus stopped flopping over due to lack of water but I'd rather have the blooms back for sure.

Landscape Poet
08-15-2012, 11:35 PM
Hibiscus enjoy water and as CA said a balanced fertilizer. I am assuming with your mulching you slowed water intake? Ensure they get feed and watered and I would expect blooms to increase significantly.

I have two on my property and changed them over to drip irrigation/micro irrigation....the bloom almost non stop down here minus when I prune.

Landscape Poet
08-15-2012, 11:38 PM
foliar feeding gives instant results too by the way...if not possible I suggest using a 8-2-12 palm food from lesco. Worst case have you somehow altered the PH in that area?

Florida Gardener
08-16-2012, 12:20 AM
Here's my opinion...hibiscus tend to decline after a certain amount of years. They look beat, put out few blooms, etc. the fact that you got 20 years is amazing to me re:hibiscus. Without seeing pics, my vote is they are seasoned...
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agrostis
08-16-2012, 07:19 PM
Here's my opinion...hibiscus tend to decline after a certain amount of years. They look beat, put out few blooms, etc. the fact that you got 20 years is amazing to me re:hibiscus. Without seeing pics, my vote is they are seasoned...
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Exactly, cut that thing back, it's too overgrown.

cgaengineer
08-16-2012, 07:29 PM
Exactly, cut that thing back, it's too overgrown.

He never posted pictures...I did. I won't cut them back because they will die back this winter. No sense in cutting them while they are blooming this late in the season.
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Landscape Poet
08-16-2012, 07:30 PM
Exactly, cut that thing back, it's too overgrown.

I would think given his location that mother nature ensures that he cuts it back in the spring following the freezes? I am still beating on moisture as the issue as it has been my experience that lack of blooms = lack of moisture or feeding. Again given that most of the country has been drought stricken....moisture. Unless of course the lawn food that he has been allowing to over broadcast into the beds has a herbicide in it?

agrostis
08-16-2012, 07:38 PM
He never posted pictures...I did. I won't cut them back because they will die back this winter. No sense in cutting them while they are blooming this late in the season.
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What make's you think i was talking about your hibiscus.

cgaengineer
08-16-2012, 07:47 PM
What make's you think i was talking about your hibiscus.

Because without a picture I don't know how you would determine the were too tall...unless I missed something in the OP's post.
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JBRONCFAN
08-17-2012, 11:15 AM
This Hibiscus grows the exact same height and width every year without a hitch. I only mulched to keep it from suffering/slacking over due to lack of water and it worked but no blooms. Have another theory.

I used the black and brown bags of mulch from Home Depot. I assume they dye it to get it those colors and the chemicals used probably leeched into the ground. I saved money but I should have used a local guy that dumps fresh mulch onto your driveway, which I will next year.

This Hibiscus dies down to the ground so once it looks obviously dead it gets chopped down to the ground.

cgaengineer
08-17-2012, 11:27 AM
This Hibiscus grows the exact same height and width every year without a hitch. I only mulched to keep it from suffering/slacking over due to lack of water and it worked but no blooms. Have another theory.

I used the black and brown bags of mulch from Home Depot. I assume they dye it to get it those colors and the chemicals used probably leeched into the ground. I saved money but I should have used a local guy that dumps fresh mulch onto your driveway, which I will next year.

This Hibiscus dies down to the ground so once it looks obviously dead it gets chopped down to the ground.

The chemicals used to dye mulch are from natural sources...usually clay based.
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Smallaxe
08-18-2012, 10:01 AM
I had a number of Endless Summer Hydrangeas that never bloomed either... Could just be the weather...

JBRONCFAN
08-18-2012, 12:44 PM
First, can't thank enough for the replies and support. Nice should to cry on. :(

I am almost positive now on what EXACTLY negatively affected my Hibiscus plant.

Like I said I went from mowing his lawn once a week to full time landscaping (with no landscaping experience).

I always knew we lived in a heavy, acidic area hence our world renown Jersey Tomatoes. I also knew if things were too acidic, it would be hard for the grass to absorb all the nutrients I pay for and apply.

Got lucky and found this great, cheap grass fertilizer totally organic and also found cheap lime that came in divot form. You know, small pieces as opposed to powder which is what I wanted.

Well, thinking back to my application process I am quite sure much of the lime divots got into the flower beds where my Knockout Roses were trying to grow and over course my Hibiscus.

I did a heavy gamble and swore up and down once I chopped this mini Christmas tree down that the spot in front of the two stumps we have would be enough sun for another Knockout Rose. All spring/summer it grew half assed. Daylilies did great, so did the Pardon Me's.

Now it's been a good two months since I did any kind of lime treatment (mostly cause everyone's grass goes dormant in the middle of the summer) and just a week ago the Knockout Rose bush just came to life!!! Big beautiful green leaves with beautiful white blooms (the only Knockout Rose so far that has an aroma).

What exactly can you add to soil to make it acidic??? I know people do this with their Hydrageas to affect their color. Think the Hibiscus is too far gone for this year and I'm gonna give my Knockout Rose another chance next year (and keep away any and all lime).

What do you guys think about my lime theory??

Smallaxe
08-19-2012, 10:28 AM
Lime is temporary at best in changing the pH... if the soil was fine before, it will be fine again... I would mulch it over with a bag of compost and see what happens... do you have any mulch around the root base now?

JBRONCFAN
08-20-2012, 03:15 PM
No, I cleared away any mulch from the root base a few weeks ago.

The Hibiscus has some blooms on it but the leaves have white spots on them and are brownish. Every single year they are beautiful and all you have to do is water them.

44DCNF
08-20-2012, 04:51 PM
Give them a foliar feeding as mentioned. Use Aggrand or Alaska Fish fertilizer, and some kelp seaweed extract for strengtheing their immunity. Water in same to soil every few weeks. They should bounce back nicely.