Hardwick Wood

Site of Special Scientific Interest · 52.1995, -0.0207

Also within

Cambridgeshire County

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
TL353575 Favourable 15.47 2023-02-06

Description

Area, 16.9 hectares 41.7 ac Description The ancient core of the site is ash field maple woodland containing both oxlip Primula elatior and primrose Primula vulgaris, a woodland type which is nationally restricted in distribution to small parts of Cambridgeshire, Suffolk and Essex where the oxlip and primrose woods overlap in their range. The oldest parts of the wood have a canopy of pedunculate oak Quercus robur with an understorey of hazel Corylus avellana, hawthorn Crataegus spp. and scattered field maple Acer campestre. The more recent woodland contains much ash Fraxinus excelsior and some wych elm Ulmus glabra. The ground flora is largely dominated by dog’s mercury Mercurialis perennis and bluebell Hyacinthoides non-scripta and contains interesting plants such as early purple orchid Orchis mascula and yellow archangel Lamiastrum galeobdolon. Rides in the wood provide additional habitat diversity. The adjacent bridleway provides a narrow ‘buffer’ to the wood and contains a population of a nationally restricted plant. The wood is bounded by agricultural ditches.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
bluebell Hyacinthoides non-scripta LC herb liliaceae
yellow archangel Lamiastrum galeobdolon LC herb lamiaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
early purple orchid Orchis mascula LC herb orchidaceae
oxlip Primula elatior LC herb primulaceae
primrose Primula vulgaris LC herb primulaceae
field maple Acer campestre LC tree aceraceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
common oak Quercus robur LC tree fagaceae
wych elm Ulmus glabra LC tree ulmaceae

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
Oak lutestring
Cymatophorina diluta
Endangered Quercus robur
Maple pug
Eupithecia inturbata
Endangered Acer campestre
Duke of Burgundy
Hamearis lucina
Endangered Primula vulgaris
Scarce vapourer
Orgyia recens
Endangered Corylus avellana, Quercus spp., Ulmus spp.
White-letter hairstreak
Satyrium w-album
Endangered Ulmus glabra, Ulmus spp.
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Fraxinus excelsior, Quercus spp., Ulmus spp.
Broom moth
Ceramica pisi
Vulnerable Ulmus spp.
Mottled umber
Erannis defoliaria
Vulnerable Acer campestre, Corylus avellana, Quercus spp., Ulmus spp.
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Quercus spp., Ulmus spp.
Pale brindled
Phigalia pilosaria
Vulnerable Corylus avellana, Fraxinus excelsior, Quercus spp., Ulmus glabra
Early moth
Theria primaria
Vulnerable Quercus spp.
Pale eggar
Trichiura crataegi
Vulnerable Corylus avellana, Quercus spp.
Oak hook-tip
Watsonalla binaria
Vulnerable Quercus robur
Flounced chestnut
Agrochola helvola
Near Threatened Quercus spp., Ulmus spp.
Light crimson underwing
Catocala promissa
Near Threatened Quercus robur
Dark crimson underwing
Catocala sponsa
Near Threatened Quercus robur
Dusky-lemon sallow
Cirrhia gilvago
Near Threatened Ulmus glabra
The sallow
Cirrhia icteritia
Near Threatened Ulmus glabra
Heart moth
Dicycla oo
Near Threatened Quercus robur
Large thorn
Ennomos autumnaria
Near Threatened Corylus avellana, Quercus spp., Ulmus spp.
September thorn
Ennomos erosaria
Near Threatened Quercus spp.
Dusky thorn
Ennomos fuscantaria
Near Threatened Fraxinus excelsior
Autumnal rustic
Eugnorisma glareosa
Near Threatened Hyacinthoides non-scripta
Double dart
Graphiphora augur
Near Threatened Quercus spp., Ulmus spp.
Clay fan-foot
Paracolax tristalis
Near Threatened Quercus spp.
Common fan-foot
Pechipogo strigilata
Near Threatened Quercus robur
Frosted green
Polyploca ridens
Near Threatened Quercus robur

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.