I love trailing lobelia in my baskets. Three years ago I got my seeds
from my local Wilko store. They were Johnsons seeds. I bought "trailing
cascade mixed" but when they flowered they were all the one colour
instead of mixed. I think they were sapphire blue.

I thought it was just one of those things so next year I bought some
more Johnsons trailing cascade mixed from the same store. Again they
came out the same colour. This time I contacted Johnsons about the
problem and they sent me four packets of trailing cascade mixed for use
this year and once again they have all flowered in the same blue colour.
That is three years in a row.

My gut feeling is that they don't really know what they are doing at
Johnsons but I was wondering if there was something at the germination
and growing on stage, perhaps temperature related that would force all
the seeds to flower in the same colour. It sounds a bit far fetched but
I thought I would ask around. Thanks.