Ashridge Wood

Site of Special Scientific Interest · 51.5022, -1.2853

Condition (Natural England)

Unfavourable Recovering (3)
UnitFeatureConditionArea (ha)Assessed
SU495785 Unfavourable Recovering 15.92 2009-05-06
SU497783 Unfavourable Recovering 15.92 2009-05-06
SU500782 Unfavourable Recovering 15.92 2009-05-06

Geology & landscape

Rock Type: Chalk

Description

Area, 15.58 hectares 38.51 ac Description Ancient coppiced woodland on chalk and clay with flints soils. About half of the wood was cleared for agriculture during 1954 and part of the remainder has been planted with conifers. Ashridge Wood is a good example of the dry ash maple woodland stand type in association with southern calcareous hazel ash woodland. Oak standards occur throughout. Wych elm, cherry and whitebeam occur locally with aspen mainly on the clay with flints. The site is important for a number of plants which are rare or local in Berkshire. In particular there is a great abundance of spiked star of Bethlehem Ornithagalum pyrenacium growing with Solomon's seal Polygonatum multiflorum. These occur throughout in association with dog's mercury Mercurialis perennis, yellow archangel Lamiastrum galeobdolon, bluebell Hyacinthoides non-scripta and several other plants typical of old coppiced woodland. Both spiked star of Bethlehem and Solomon's seal are here on the edge of the native range in Britain. The narrow leaved everlasting pea Lathyrus sylvestris and autumn crocus Colchicum autumnale are present but both are now extremely scarce. These too are at the edge of their native range and represent an important relic woodland flora, formerly associated with coppicing.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
autumn crocus or meadow saffron Colchicum autumnale NT herb colchicaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
yellow archangel Lamiastrum galeobdolon LC herb lamiaceae
everlasting pea Lathyrus sylvestris VU herb fabaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
Bath asparagus Ornithagalum pyrenacium Not listed in GB list herb asparagaceae
Soloman's seal Polygonatum multiflorum LC herb liliaceae

Insects to look out for

These moths, butterflies and beetles are known to feed on plants recorded at this site, and carry a notable UK conservation status — but a host-plant being present doesn't mean the insect has actually been recorded here. Treat this as "worth watching for," not a confirmed sighting.

SpeciesStatusVia host-plant
Autumnal rustic
Eugnorisma glareosa
Near Threatened Hyacinthoides non-scripta

Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.