Young plants blasting

[Alex]

I have had a problem for a while with young plants blasting their buds very early on - when I say young I mean single rosette and first flowering, and the blasting happens very early in bud development. Is this a common observation? I wonder whether this often happens if plants are not very big and therefore their ability to support a flower is in question....

I have thought about whether there are other causes, but I am pretty sure there aren't water drips etc collecting in the leaves. Temperature is fairly stable although it does drop somewhat in Winter.

Any thoughts?

Thanks,

Alex

 

[Ray]

Flower loss in immature, first-bloomers is not uncommon, but I have noticed that it is more prevalent when the overall culture is a bit lacking. Lacking in what, you're going to need to analyze yourself.

 

[Alex]

Thank you, Ray. Some of the affected plants might not have been in excellent health, although I do think some really were...lots of growth, good colour, new shoots etc. As I hinted at in the first post, Winter temps do particularly worry me about my culture though. It is often down around 13 or 14 C at night.

 

[gego]

Any abrupt changes, like temp, fert, new potting, air quality, etc.

For temp, it could be watering cold water or hot/cold air blowing.

 

[Stone]

Thank you, Ray. Some of the affected plants might not have been in excellent health, although I do think some really were...lots of growth, good colour, new shoots etc. As I hinted at in the first post, Winter temps do particularly worry me about my culture though. It is often down around 13 or 14 C at night.

It depends on the species. 13 or 14 is an excellent overnight temp for the great majority of species but probably too warm for some inland Chinese/Burmese species and too cold for island and sea level peninsular species.

 

[Alex]

Yes, my greenhouse is very small so I can’t really have zones. Instead, I supplement the warmth-loving Sigmatopetalum and multifloral types with bottom heat from propagators, and the cooler-growing types like some Parvis go nearer the window. But, clearly, this arrangement is limited so maybe that’s the problem. I do have some multigrowth Sigmatopetalum budding now and so far these at least seem fine.

 

[Paphiope]

This year the winter in europe is very dark. I think this is the reason