We always have foxglove in our garden but this year we have a white one which is unusual. How can we collect the seeds so that we can have more in the future.
I had white hollyhocks and collected the seed. Sadly they came up a pale peachy colour so as slack alice says they may not come up white but is worth a try collecting some seeds and letting some self seed.
I grow foxglove of many shades and always play a little guessing game to predict the colours of the forthcoming flowers and in doing so I've noticed the ones that turn out to have white flowers, usually have a paler leaf as apposed to the purple which tend to have darker green leaves with a tinge of purple, particularly in the veins and stem.
I think you could maximize your chances by saving some seed from the white ones, ready for sowing next spring.