We have reshy fields in environmental schemes, and cutting is recommended for us from August through October. It recommends a first cut then a second 8 weeks later.
We are not allowed to cut at all from 1st April to 31st July.
We are required to cut 1/3 of the reshes each year, a different 1/3 each year of course, so that there is a variety of heights and some open grassy areas to give maximum benefit to the birds (which it lists as "very important potential habitat for lapwing, curlew, redshank and snipe".)