When did ted hughes write thistles?

Ted Hughes did not write a poem titled "Thistles". There is a poem by him called "Thistle".

However, there is no single definitive answer to when he wrote it, as it's difficult to pinpoint the exact date of composition for poems.

Here's what we know:

* It was published in 1979 as part of his collection "Remains". This suggests he wrote it sometime before 1979.

* It's likely he wrote it during his period of intense writing activity, between 1975 and 1979, when he produced a large body of work.

Therefore, while we can't be exact, it's likely that Ted Hughes wrote "Thistle" sometime between 1975 and 1979.