Robins Wood

Site of Special Scientific Interest · 51.0770, 0.5237

Condition (Natural England)

Favourable (2)
UnitFeatureConditionArea (ha)Assessed
TQ767334 Favourable 10.03 2008-11-19
TQ768338 Favourable 37.68 2013-06-28

Description

Area, 53.9 ha. 133.2 ac. Description Robins Wood is typical of the linear woodlands which have developed along deep stream valleys ghylls in the weald. The humid conditions prevailing in such places support a rich assemblage of ferns, mosses and liverworts including species which are rare in Kent. The two main ghylls follow parallel lines of fracture faults in the underlying geological strata and these fractures have brought contrasting beds of the Wealden series into contact along the stream bed, Wadhurst clays and the Ashdown sands. The valleys are likely to have retained a woodland cover since natural colonisation following the last ice age and may thus be termed 'ancient woodland'. The woods consist mainly of mixed hornbeam Carpinus betulus, ash Fraxinus excelsior and hazel Corylus avellana coppice below oak Quercus robur and occasional beech Fagus sylvatica standards. In some areas the coppice layer has been restocked with sweet chestnut Castanea sativa and here birch Betula spp. and aspen Populus tremula are also common. guelder rose Viburnum opulus and midland hawthorn Crataegus laevigata are present in the shrub layer, above aground flora dominated by bluebells Hyacinthoides non-scripta, bramble Rubus fruticosus and dog's mercury Mercurialis perennis. Other more locally distributed species include wild daffodil Narcissus pseudonarcissus, violet helleborine Epipactis purpurata, imperforate St John's wort Hypericum maculatum and early purple orchid Orchis mascula. Over the streams alder Alnus glutinosa coppice becomes dominant, with willows Salix spp. frequent above a ground flora reflecting the wetter conditions. opposite leaved golden saxifrage Chrysosplenium oppositifolium, yellow archangel Lamiastrum galeobdolon and many species of fern occur here including the rare hay scented buckler fern Dryopteris aemula. The damp, mild microclimate is ideal for bryophytes mosses and liverworts and a rich assemblage of species has been recorded. Several are more commonly found in the west of Britain and are present in Kent at the eastern most extent of their national distribution; these include Hookeria lucens, Trichocolea tomentella and Campylostelium saxicola. Several ponds add to the habitat diversity of the site.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
hay-scented fern Dryopteris aemula LC fern dryopteridaceae
opposite-leaved golden- saxifrage Chrysosplenium oppositifolium LC herb saxifragaceae
violet helleborine Epipactis purpurata LC herb orchidaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
imperforate St. John's-wort Hypericum maculatum LC herb hypericaceae
yellow archangel Lamiastrum galeobdolon LC herb lamiaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
wild daffodil Narcissus pseudonarcissus LC herb amaryllidaceae
early purple orchid Orchis mascula LC herb orchidaceae
bramble Rubus fruticosus LC herb rosaceae
handsome woolywort Trichocolea tomentella LC liverwort jungermanniales
shining hookeria Hookeria lucens LC moss hookeriales
midland hawthorn Crataegus laevigata LC shrub rosaceae
gelder rose Viburnum opulus LC shrub caprifoliaceae
alder Alnus glutinosa LC tree salicaceae
hornbeam Carpinus betulus LC tree betulaceae
sweet chestnut Castanea sativa LC tree fagaceae
hazel Corylus avellana LC tree corylaceae
beech Fagus sylvatica LC tree fabiaceae
ash Fraxinus excelsior LC tree oleaceae
aspen Populus tremula LC tree salicaceae
common oak Quercus robur LC tree fagaceae

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
Figure of eight
Diloba caeruleocephala
Endangered Crataegus spp.
Dark bordered beauty
Epione vespertaria
Endangered Populus tremula
Scarce vapourer
Orgyia recens
Endangered Alnus glutinosa, Corylus avellana, Crataegus spp., Fagus sylvatica, Quercus spp., Rubus fruticosus
Mouse moth
Amphipyra tragopoginis
Vulnerable Crataegus spp.
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Crataegus spp., Fagus sylvatica, Fraxinus excelsior, Populus spp., Quercus spp.
Broom moth
Ceramica pisi
Vulnerable Rubus fruticosus
Scarce chocolate-tip
Clostera anachoreta
Vulnerable Populus spp., Populus tremula
Mottled umber
Erannis defoliaria
Vulnerable Carpinus betulus, Castanea sativa, Corylus avellana, Crataegus spp., Fagus sylvatica, Populus tremula, Quercus spp.
Satyr pug
Eupithecia satyrata
Vulnerable Hypericum spp.
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Quercus spp., Rubus fruticosus
Pale brindled
Phigalia pilosaria
Vulnerable Alnus glutinosa, Corylus avellana, Crataegus laevigata, Fraxinus excelsior, Populus spp., Quercus spp.
Grizzled skipper
Pyrgus malvae
Vulnerable Rubus fruticosus
Early moth
Theria primaria
Vulnerable Crataegus laevigata, Quercus spp.
Pale eggar
Trichiura crataegi
Vulnerable Corylus avellana, Populus spp., Quercus spp., Rubus fruticosus
Oak hook-tip
Watsonalla binaria
Vulnerable Quercus robur
No common name
Zeugophora turneri
Vulnerable Populus tremula
Flounced chestnut
Agrochola helvola
Near Threatened Quercus spp.
Purple emperor
Apatura iris
Near Threatened Populus tremula
Minor shoulder-knot
Brachylomia viminalis
Near Threatened Populus tremula
Light crimson underwing
Catocala promissa
Near Threatened Quercus robur
Dark crimson underwing
Catocala sponsa
Near Threatened Quercus robur
The sallow
Cirrhia icteritia
Near Threatened Populus spp.
Dingy mocha
Cyclophora pendularia
Near Threatened Alnus glutinosa
Heart moth
Dicycla oo
Near Threatened Quercus robur
Kentish glory
Endromis versicolora
Near Threatened Alnus glutinosa
Large thorn
Ennomos autumnaria
Near Threatened Alnus glutinosa, Corylus avellana, Crataegus spp., Populus spp., Quercus spp.
September thorn
Ennomos erosaria
Near Threatened Fagus sylvatica, Quercus spp.
Dusky thorn
Ennomos fuscantaria
Near Threatened Fraxinus excelsior
Autumnal rustic
Eugnorisma glareosa
Near Threatened Hyacinthoides non-scripta
Grey pug
Eupithecia subfuscata
Near Threatened Populus tremula
Double dart
Graphiphora augur
Near Threatened Crataegus spp., Quercus 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.

Plant communities

A14 — Fast flowing river and stream

Myriophyllum alterniflorum community

Isolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina

A17 — Chalk river and stream, Fast flowing river and stream

Ranunculus penicillatus ssp. pseudofluitans community

Berula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans

A18 — Fast flowing river and stream

Ranunculus fluitans community

Fontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa