The only yellow is the stamen, and the flower is pure red, no tinges of blue or any other colour @B3, some of the outer trumpet is curved as in the picture you showed of the King George Label, but other trumpets have more cuts rather than curve shape.
Had you in mind when I went to the garden centre earlier. They had tons of Amelia Jane and a paler one called Flamingo.
I don't know but your picture does look like the colour of Amelia Jane, no idea if it is, sorry I didn't pay enough attention to the cuts and depth of the white. Just made me chuckle after B3 said King George seems very available, just to be contrary our local emporium had Amelia.
I don't blame you for being chuffed they do look beautiful.
Yes @B3, I agree. I don't know much about Penstemon, having never grown them before I got the original parent plant a year or two ago. @pitter-patter your plant does look very similar and I am counting the stamen - mine appears to have just one and the Arabesque has 3 or 4. I am assuming that is a decisive factor in the naming of the varieties?
I wouldn't normally @pitter-patter but with so many lookalikes I did wonder if the amount of stamen would make a difference to the naming - I wonder if there is a Penstemon club out there -surely there must be.....!
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I don't know but your picture does look like the colour of Amelia Jane, no idea if it is, sorry I didn't pay enough attention to the cuts and depth of the white.
Just made me chuckle after B3 said King George seems very available, just to be contrary our local emporium had Amelia.
I don't blame you for being chuffed they do look beautiful.
https://www.rhsplants.co.uk/plants/_/penstemon-arabesque-red/classid.2000033410/
https://penstemons.org/
Thanks