Passiflora Amethyst Flowers are loosing their purple colour

Hi all

Please can you tell me how to get the purple colour back into my Passion Flowers.

It's a Passiflora Amethyst. The flowers are loosing the purple colour and are fading to almost white. Is it the cold or as it's coming up to winter is it the fading sun.

The soil is good and I feed the plant too.

Thanks

 

Its probably due to low light and cooler temperatures.

Its getting late now for good flowers on Passion flowers.

Keep it frost free over winter and it will come back even better next year.

 

Look at this, last paragraph.
Passiflora 'Amethyst' 10 - the 'Amethyst' cross repeated

 

Thank you very much Pete! :o))

As long as It's not my fault and like you have shown, it's the nature of this breed.

"P. 'Amethyst' is a great cross but a weakness is its tendency to lose colour especially at the beginning & end of season".

I still love this plant. I can't believe how many blooms I've had from this plant, and they're still coming. I've only had it for 7 months and it's over 8 feet high. Next season the insects are going to love it.