Southerham Farm is a 131-hectare (320-acre) nature reserve on the eastern outskirts of Lewes in East Sussex.

It is managed by the Sussex Wildlife Trust.

[1] The thin and infertile soils on this chalk site result in a floristically very rich grassland.

Plants which flower in the summer include horseshoe vetch, kidney vetch, mouse-ear hawkweed, field scabious, dropwort and salad burnet.

[2]