You may be interested in some upcoming events this year at the National Trust run historic farm at Saddlescombe, near Devil’s Dyke just north of Brighton and Hove as follows:
Farm Open Day on Sunday 28 June from 1030-1530, and a Heritage Open Day on Sunday 20 September also from 1030-1530. These are both free events but there is a £5 car park charge. There is also a cafe, farmers market and guided walks. The farm is situated between Poynings and the Devil’s Dyke road and signposted from the A27. You can also catch the number 77 bus from Brighton railway station and walk there from Devil’s Dyke itself.
There are also 2 Orchid days on Sunday 7 June and Tuesday 16 June from 1030, where there will be a guided walk with a ranger to search for a variety of wild orchids. There is a cost for this and tickets have to be booked via the National Trust website. More details of all the above days can be found there as well.