I recall last year you saying you fancied getting some for your garden - did you ever ?
This week I have done a bit of clearing and found 6 pots of what I thought was just old compost but on closer inspection , each one has a lupin shooting away. Such tough plants to have survived the winter with no attention - it was just little 3" pots so you can tell the plants had been quite small at the back end of last year.
They are so easy to grow as well, although a perennial, I tend to leave them in place for 5 years and replace as they do get a bit woody.
If you haven't tried Spreckly and fancy some seed , pm me your address and I will post some to you.