Name this plant

Two self seeded plants, one with white flowers and one with purple. Flowers have four petals, and are very much like Lunaria (honesty), but this has finished flowering. I have seen these before, but can't identify them.

Re: Name this plant

Could be Sweet Rocket but, leaves look a bit different.

Re: Name this plant

Also called Hesperis

Re: Name this plant

I think its Hesperis as well Tessa

Re: Name this plant

Having checked a few books and a quick consult online I think you are both right. I will save some seed from both of these and see if I can grow them next year. Many thanks for the replies.

Re: Name this plant

I would call it "Fred"

Re: Name this plant

Sounds like a STD.