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paul_t23

Vriesea flowers not maturing

16 years ago

Hi everyone,

I'm having a bit of a disappointing time at the moment with the flowers on a couple of foliage Vrieseas. The one I really wanted to do something with is labelled as 'Snows of Mauna Kea F2' - it's a big white pin-striped beasty approx. a metre across and the flower spike reaches to a bit over 2.5 metres with 30 or so flowers, but the flowers on this plant don't seem to be maturing normally.

The first flower on this plant opened normally back on 8 December but with not much pollen and selfing of this flower looks to have been unsuccessful. The second flower opened normally but the anthers remained closed, with no free pollen. The next 9 flowers (up to and including last night) have not opened properly at all. The closed petals have pushed out past the sepals normally and the sepals have opened normally, but the petals have remained firmly closed. I've dissected a few of them and the petals are not stuck together, they are just firmly closed, and the stigma and style appear normal, but the flowers have been full of clear, fresh-smelling fluid and the anthers have been solid and closed with no free pollen, but otherwise quite large and solid and normal in appearance.

The other plant is a fosteriana with a fair bit of white in it. It started flowering a few weeks earlier and the first dozen or so flowers seemed quite normal, opening wide with lots of free pollen, then it started flowering abnormally at around the same time as the SoMK F2, with pretty much the same details except that it does not have as much fluid inside the flowers.

In comparison, other plants on the same bench (fosterianas and hybrids of fosteriana, heiroglyphica, platynema, Nova) finished flowering quite normally at around the same time as the abnormal flowering started on the SoMK F2 and the white patterned fosteriana. The only thing that was changed, a couple of weeks before this, was that the SoMK F2 and the white patterned fosteriana were moved so that the flower spike on the SoMK F2 would have room to keep growing under a higher bit of roof. The weather? It has been consistently very variable across the whole period.

I'd be really interested to know if other people have experienced the same sort of thing. Does anyone have any ideas on what is going on here? Did I stuff them up by moving them, causing the plants to abort the flowers? Or, are they just a bit late in the season - maybe they need increasing day-length to mature properly? Or ..... ???

If it was just the SoMK F2 that was flowering abnormally I would think that maybe its genes are scrambled unworkably, but with the fosteriana showing similar signs, it suggests that maybe something else is going on. Any info or suggestions would be great.

Cheers, Paul

Comments (12)

  • 16 years ago

    Hi Paul ,well you are not alone , I have a plant i named ' Supernova ' ( not reg yet ) when it flowered the first time none of the flowers opened up but pushed the petals past the sepals,now this year the first 7-8 flowers opened normal ,the rest did not ,some of my " aussie Beauties " have done this as well , its not moving the plants that does it ,genetic ? doubt it , more likely to be climatic/ cultural ,some times flowers just are not perfect ( you get this in orchids a lot ) sometimes they wont open if there is a lot of glutinous materail on the flowers and the air is very dry than it simply ' glues ' the flowers shut ,misting the spike(s) over can prevent this , thats about all i can say ,
    cheers . Jack

  • 16 years ago

    Hi Jack,

    Thanks for your info. At least now I don't feel guilty for moving them and I guess I'll just have to keep trying and see what happens. There are still quite a few flowers yet to open on the SoMK F2 so I'll keep my fingers crossed with those and if that fails, there are three pups just becoming visible, so a few years down the track I'll get a chance to try again. Maybe if they are grown in different locations they might flower at slightly different times during the year and that might make a difference.

    It is such a spectacular plant that I really had been busting to do something with it NOW. Ah well, on a positive note, I guess that now it is something to look forward to ..... again .... :)

    I'll let you know what happens, and since I can't resist posting a picture, here is 'Snows of Mauna Kea F2' again, taken a week or so before the flower spike started emerging.
    {{gwi:438876}}

    Cheers, Paul

  • 16 years ago

    I had the same problem and 2 times a day light misting solved it

  • 16 years ago

    Hi HDD,

    Thanks for the info. The petals don't seem to be glued together, they're just not opening and the anthers aren't maturing, but I'll certainly give the misting a try. Who knows what sorts of mechanisms and triggers are involved, so it will be interesting to see what happens.

    Cheers, Paul

  • 16 years ago

    Hi Paul,

    That's a nice looking plant you have there so it's worthwhile waiting for another year to get a flower.

    You're not the only one with Vriesea problems, I had a Kiwi Cream with a nice big spike but the grasshoppers liked it also and chewed right through it at the first flower. Now there's just a bare spike to remind me of what may have been.

    All the best, Nev.

  • 16 years ago

    Paul
    I was told this when I asked someone that grows alot of Vriesea's. They like their leaves cool and moist and their feet evenly moist but not wet. The first few I grew I had to battle extreme heat which most of them didn't like. That's why the misting, it helps control my heat problems and I have bloomed every one I now grow. Before they spiked but only had deformed flowers. Misters are 8 feet above the plants and it is a micro mist. I can stand under the mist and it barely gets my glasses wet.

  • 16 years ago

    Hi HDD,

    That is really interesting info and you may have hit the nail on the head. Thinking back over the four or five months in question, the combination of plant surface temperature and moisture has probably been more consistently to the hot and dry side recently and could very well be a factor, even though the ambient temperature and humidity ranges outdoors have been similar and highly variable over the whole period.

    The twice daily misting is starting as of today. I'll let you know how it goes.

    Thanks again, Paul

  • 16 years ago

    Woops, Nev - I meant to offer my commiserations re your 'Kiwi Cream'. I don't have any luck with my one either. It grows quite vigorously and looks perfectly healthy apart from the fact that the leaves die right back after they have matured. All of the other foliage Vrieseas around it are bursting with health, including its relo 'Kiwi Sunset', so I've no idea what is going on there. Cheers, Paul

  • 16 years ago

    Hi Paul,
    I have had a problem with flowers not producing pollen.Does anyone know why this happens?They produced pollen to start with and then stopped.
    Hi Nev,
    I had the same thing happen with a grasshopper attack but it happened after I had pollinated most of the flowers on one and before I had a chance to on another.

  • 16 years ago

    Hi Paul ,in regards that nice 'Snows of M.K ' if you get a pup to spare ,i may have something you would like to swap it for ? its very nice and i could use it for breeding ,Mine is getting a spike ,its a bit ahead of yours ,are you interested in me sending you some pollen to put on it so we both can have some seed ? see photo attached of mine ,( photo is before plant made spike ) cheers, Jack

    {{gwi:438878}}

  • 16 years ago

    Hi Jack,

    That 'Snows of Mauna Kea F2' in the pic actually belongs to a mate who is kindly allowing me to play around with it. It took a couple of days to catch up with him, so sorry about the delay in getting back to you.

    That plant in the pic is the one that I'm currently having the flowering problems with. The pic of the whole plant was taken a few months ago, but here is a pic taken a couple of days ago showing the flowers not doing their thing:
    {{gwi:438879}}

    This pic is taken in the evening with not much light so it is a bit grainy, but you can see the pair of flowers in the middle (about half way up the spike now) - the sepals have opened but the petals remain firmly closed and when I dissect the flowers, the anthers are closed and do not contain any pollen. So, unfortunately no pollen as yet, but the plants are now getting the twice daily misting as per HDD's suggestion and there are another twelve or so flowers to go, so I'm keeping my fingers crossed that there may be some pollen yet to come.

    I've asked my mate about the possibility of a pup swap and he'd be very happy to do that. Thanks a lot for your suggestion. The pups are still very small - still under the water in the leaf bases - so they will probably be ready in several months. I'll keep you posted.

    Cheers, Paul

  • 16 years ago

    Hi Paul , yes i knew the plant was your mates ,i thought you may have got it from him ,still am happy to swap a pup, your flowers are doing exactly what some of mine did , and yes when i opened the flowers to let the air in it did not mature the pollen, there just was none ,bummer is int it ?
    Jack

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