Grey Sedge
- Peak month
- June
- Records since 2000
- 940
- Scientific name
- Carex divulsa
Fragrant Orchid
- Peak month
- June
- Records since 2000
- 938
- Scientific name
- Gymnadenia conopsea
Nasturtium
- Peak month
- June
- Records since 2000
- 938
- Scientific name
- Tropaeolum majus
Blue Fleabane
- Peak month
- August
- Records since 2000
- 937
- Scientific name
- Erigeron acris
Marsh Arrowgrass
- Peak month
- July
- Records since 2000
- 936
- Scientific name
- Triglochin palustris
Fern-grass
- Peak month
- June
- Records since 2000
- 933
- Scientific name
- Catapodium rigidum
Common Cudweed
- Peak month
- June
- Records since 2000
- 931
- Scientific name
- Filago germanica
Corn Mint
- Peak month
- August
- Records since 2000
- 929
- Scientific name
- Mentha arvensis
Montbretia, Crocosmia, Garden montbretia
- Peak month
- August
- Records since 2000
- 929
- Scientific name
- Crocosmia crocosmiiflora
Stiff sedge
- Peak month
- July
- Records since 2000
- 929
- Scientific name
- Carex bigelowii
Marsh Helleborine
- Peak month
- July
- Records since 2000
- 925
- Scientific name
- Epipactis palustris
New Zealand-holly
- Peak month
- June
- Records since 2000
- 924
- Scientific name
- Olearia macrodonta
Alpine Meadow-rue
- Peak month
- July
- Records since 2000
- 919
- Scientific name
- Thalictrum alpinum
Cotton Thistle
- Peak month
- June
- Records since 2000
- 916
- Scientific name
- Onopordum acanthium
Woolly Thistle
- Peak month
- July
- Records since 2000
- 912
- Scientific name
- Lophiolepis eriophora
Tufted Sedge
- Peak month
- August
- Records since 2000
- 911
- Scientific name
- Carex elata
Lime
- Peak month
- August
- Records since 2000
- 909
- Scientific name
- Tilia europaea
Musk Stork's-bill
- Peak month
- April
- Records since 2000
- 909
- Scientific name
- Erodium moschatum
Greater Spearwort
- Peak month
- July
- Records since 2000
- 903
- Scientific name
- Ranunculus lingua
Heath Groundsel
- Peak month
- June
- Records since 2000
- 893
- Scientific name
- Senecio sylvaticus
Peach-leaved Bellflower
- Peak month
- June
- Records since 2000
- 889
- Scientific name
- Campanula persicifolia
Hedge Bedstraw
- Peak month
- July
- Records since 2000
- 885
- Scientific name
- Galium mollugo
Four-leaved Pink-sorrel
- Peak month
- July
- Records since 2000
- 879
- Scientific name
- Oxalis tetraphylla
Foxglove-tree
- Peak month
- August
- Records since 2000
- 879
- Scientific name
- Paulownia tomentosa
Marsh Hawk's-beard
- Peak month
- July
- Records since 2000
- 877
- Scientific name
- Crepis paludosa
Sea Rush
- Peak month
- October
- Records since 2000
- 876
- Scientific name
- Juncus maritimus
Swine-cress
- Peak month
- June
- Records since 2000
- 871
- Scientific name
- Lepidium coronopus
Glossy Buckthorn
- Peak month
- August
- Records since 2000
- 868
- Scientific name
- Frangula alnus
Quaker comfrey
- Peak month
- May
- Records since 2000
- 864
- Scientific name
- Symphytum uplandicum
Curled Pondweed
- Peak month
- June
- Records since 2000
- 861
- Scientific name
- Potamogeton crispus
Golden Samphire
- Peak month
- July
- Records since 2000
- 858
- Scientific name
- Limbarda crithmoides
Common Gromwell
- Peak month
- May
- Records since 2000
- 856
- Scientific name
- Lithospermum officinale
Perennial Cornflower
- Peak month
- May
- Records since 2000
- 851
- Scientific name
- Centaurea montana
Milk-parsley
- Peak month
- August
- Records since 2000
- 850
- Scientific name
- Thysselinum palustre
Common Saltmarsh-grass
- Peak month
- August
- Records since 2000
- 847
- Scientific name
- Puccinellia maritima
Lyme-grass [plant]
- Peak month
- July
- Records since 2000
- 847
- Scientific name
- Leymus arenarius
Annual Pearlwort
- Peak month
- June
- Records since 2000
- 845
- Scientific name
- Sagina apetala
Alsike Clover
- Peak month
- July
- Records since 2000
- 843
- Scientific name
- Trifolium hybridum
Heath False-brome
- Peak month
- July
- Records since 2000
- 840
- Scientific name
- Brachypodium pinnatum
Arrowhead
- Peak month
- August
- Records since 2000
- 838
- Scientific name
- Sagittaria sagittifolia
Canadian Goldenrod
- Peak month
- August
- Records since 2000
- 835
- Scientific name
- Solidago canadensis
Garden Star-of-Bethlehem
- Peak month
- May
- Records since 2000
- 835
- Scientific name
- Ornithogalum umbellatum
Marsh-mallow
- Peak month
- August
- Records since 2000
- 831
- Scientific name
- Althaea officinalis
Russian Vine
- Peak month
- August
- Records since 2000
- 830
- Scientific name
- Fallopia baldschuanica
Box-leaf honeysuckle
- Peak month
- May
- Records since 2000
- 829
- Scientific name
- Lonicera pileata
Giant Bellflower
- Peak month
- July
- Records since 2000
- 829
- Scientific name
- Campanula latifolia
Herb-Paris
- Peak month
- May
- Records since 2000
- 829
- Scientific name
- Paris quadrifolia
Large Bitter-cress
- Peak month
- May
- Records since 2000
- 829
- Scientific name
- Cardamine amara