Hibiscus

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daibach Tongham, Surrey , United Kingdom May 19, 2010

Hi
About 4 years ago I brought back some hibiscus seeds from the Greek Islands which I picked of some hibiscus bushes. I have grown two of them from seeds and they are healthy flourishing and growing quite large. however I do not get any flowers on them. Can you give me any advice on what I can do to encourage flowers or am I flogging a dead horse.

Many thanks

Brian Evans




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ecrane3 Dublin, CA(Zone 9a) May 19, 2010

You don't mention what type of hibiscus they are but most of them need a good amount of sun, and heat also often helps them bloom better so I'd look at where you have them planted--if they're not getting enough sun that may be the problem. Not much you can do about the heat but hopefully if you get them enough sun that'll be good enough. I'd also look at how you've been fertilizing them--fertilizer with too much nitrogen can stimulate a lot of green growth at the expense of flowers; and most hibiscus don't like fertilizer with a lot of phosphorus in it--although phosphorus is found in bloom booster fertilizers and those work fine on some plants, it's actually counterproductive with hibiscus and they won't bloom as well. And lastly some things also take quite a number of years to bloom when you plant them from seed so it could be this is one of those cases.

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Grantman31 West Palm Beach, FL May 19, 2010

Ecrane is correct. I take it you're growing them in containers and have them indoors for a good part of the year (considering where you live). Does the window you have chosen provide ample sunlight (at least 6 hours per day)? If not, you may have a nice green plant with little to no flowers.

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daibach Tongham, Surrey , United Kingdom May 19, 2010

Dear Ecrane3 & Grantman31
Many thanks for your most useful advice. I had them in pots for the first two years then planted them in my garden. One of them gets direct sunlight, the other is in the shade , but does get some sunlight towards the end of the afternoon. My garden is quiet secluded.
Once again thank you

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Grantman31 West Palm Beach, FL May 20, 2010

Daibach - How cold does it get where you live? Looking up your town, it seems it gets far too cold for hibiscus to thrive in-ground (unless the hibiscus of which you speak is hardy, but I doubt it if it came from the Greek Islands).

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daibach Tongham, Surrey , United Kingdom Jun 14, 2010

Hi Grantman31
We are quite sheltered but it does get a bit cold at times. I shall just have to bear with it for a while to see how it progresses. I must say they are thriving and look very healthy - but it never rains but it pours as the onbe in the very sunny spot has suffered an attack by blackfly which I have finally got rid of
Many thanks for your attention.
Daibach

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