So what's this then?
By Pete
Wiltshire,
United Kingdom 
This has appeared in our garden, beautiful orange flowers - I'm sure I didn't plant this one & can't seem to find it in our various books!
Even if a 'weed' will try to save seeds as we like it!
6 Jul, 2009
Answers
good shout - looks very like, but this beastie is about 18 inches tall & similar spread, could be tho?!
Thanks for help!
6 Jul, 2009
In my RHS book, there are several species of upright Mimulus - try googling M. guttatus as a starter for 10.
6 Jul, 2009
it looks like it might be one of the impatiens. there is an orange one. though it doesnt have the typical spur that they usually have. mimulus might be a better bet.
6 Jul, 2009
I think the new Impatiens are flatter flowers than these seem to be. I saw some yesterday and looked at them.
6 Jul, 2009
reckon tis mimulus - googled some pics and looks right, probably a bird planting!
Lovely colour flowers, will self seed with luck - thankyou to all for time and thought, Peter & Nita.
6 Jul, 2009
You're very welcome - nice to be able to help! Enjoy them. :-)
6 Jul, 2009
It's Mimulus cardinalis. We sell it as a marginal plant where I work.
7 Jul, 2009
It reminds me of a Mimulus?? Possibly??
6 Jul, 2009