Yes. Mine were HUGE! I grew them along the back of my greenhouse and they overshadowed it reaching just over 12 foot. Amazing plants but boy are the leaves vicious! I tried to save seed, to no avail, and what do you know, I now have echium seedlings all about 2 foot tall all over the garden! I am leaving the lot in as they are a touch tender so any that pull through - super! Mine took 3 years to reach their full potential, but they were started in pots in the greenhouse. I am hoping as these ones have started naturally, they will flower next year. The bees and buggies love them! I shall try to find a photo.
Toadspawn, do you have any fleece or net curtains you could use to protect it? Make a tent around it maybe?