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Potentially Harmful Plants > (Scroll page to view all)

 
(External link to Crocus.co.uk) 

The following list of potentially harmful plants has been based on information contained in the Horticultural Retailers Code of Practice.  The Code is compiled by the Horticultural Trades Association (HTA) who have worked with the Poisons Unit at Guy's Hospital and The Royal Botanic Gardens at Kew. 
Apart from Category A, most plants labelled under the Code are safe to purchase if the warnings are heeded and they are not planted where small children will have access to them.  The information is presented here simply as a data source for gardeners and is not intended to offer any sort of medical advice.  In cases of ingestion or reaction, seek advice from a qualified medical practitioner (e.g. your doctor or hospital).  For further details about The Code, contact the Information Centre at the HTA.
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copyright 2004 © gardensearch.co.uk- | Data Protection registration no: Z8513556 | disclaimer

 

 

CATEGORY A - Latin Names Common Name    
Rhus diversiloba, radicans, rydbergii striata, succedanea, toxicarum, verniciflua and vernix Poison Oak CAUTION poisonous if eaten.  Skin contact commonly causes severe blistering dermatitis.

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CATEGORY B - Latin Names Common Name    
Aconitum Monkshood CAUTION toxic if eaten / harmful via skin

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Arum Cuckoo Pint CAUTION toxic if eaten / skin and eye irritant  
Atropa Belladonna CAUTION toxic if eaten  
Brugmansia Angel's Trumpets CAUTION toxic if eaten  
Colchicum Autumn Crocus CAUTION toxic if eaten  
Convallaria Lily of the Valley CAUTION toxic if eaten  
Coriaria Coriaria CAUTION toxic if eaten  
Daphne Mezereon CAUTION toxic if eaten / skin irritant  
Datura Stinkweed CAUTION toxic if eaten  
Dieffenbachia Dumb Cane CAUTION toxic if eaten / skin and eye irritant Top
Digitalis Foxglove CAUTION toxic if eaten  
Euphorbia (except E. pulcherrrima) Spurge CAUTION skin and eye irritant / toxic if eaten  
Gloriosa superba Flame Lily CAUTION toxic if eaten  
Heracleum Hogweed CAUTION severely toxic to skin with sunlight  
Hyoscyamus Henbane CAUTION toxic if eaten  
Laburnocytisus adamii Laburnocytisus CAUTION toxic if eaten  
Laburnum Golden Chain CAUTION toxic if eaten  
Lantana Shrub Verbena CAUTION toxic if eaten  
Mandragora Mandrake CAUTION toxic if eaten  
Nerium oleander Oleander CAUTION toxic if eaten Top
Oenanthe crocata, aquatica and phellandrium Dead Man's Fingers CAUTION toxic if eaten  
Phytoiacca Inkberry CAUTION toxic if eaten  
Primula obconica Primula CAUTION may cause skin allergy  
Ricinus communis Castor Oil Plant CAUTION toxic if eaten  
Ruta Rue CAUTION severely toxic to skin with sunlight  
Scopolia Scopolia CAUTION toxic if eaten  
Solandra Chalice Vine CAUTION toxic if eaten  
Solanum dulcamara Woody Nightshade CAUTION toxic if eaten  
Sophora Pagoda Tree CAUTION toxic if eaten  
Taxus Yew CAUTION toxic if eaten  
Thevetia Yellow Oleander CAUTION toxic if eaten / skin irritant  
Veratrum Hellebore CAUTION toxic if eaten  
Zigadenus Death Camas CAUTION toxic if eaten Top

 

CATEGORY C - Latin Names Common Name    
Acalypha Cat's Tail Skin and eye irritant / harmful if eaten

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Acokanthera Poison Bush Harmful if eaten  
Actaea section Actaea Bane Berry Harmful if eaten / skin irritant  
Adenium Desert Rose Harmful if eaten  
Aesculus Horse Chestnut Harmful if eaten  
Aglaonema Chinese Evergreens Harmful if eaten / skin and eye irritant  
Agrostemma githago Corn Cockle Harmful if eaten  
Allamanda Golden Trumpet Harmful if eaten / skin and eye irritant  
Alocasia Giant Elephant's Ear Harmful if eaten / skin and eye irritant  
Aloe Aloe Harmful if eaten  
Alstromeria Alstromeria May cause skin allergy  
Amaryllis belladonna Belladonna Harmful if eaten  
Anthurium Flamingo Flower Harmful if eaten / skin and eye irritant  
Apocynum Dogbane Harmful if eaten  
Arisaema Cobra Lily Harmful if eaten / skin and eye irritant  
Asparagus except A. officinalis Asparagus Fern May cause skin allergy / fruits harmful if eaten  
Brunfelsia Lady of the Night Harmful if eaten Top
Caladium Angel's Wings Harmful if eaten / skin and eye irritant  
Calla palustris Water Arum Harmful if eaten / skin and eye irritant  
Capsicum annuum (ornamental cultivars) Chilli Pepper Harmful if eaten / skin and eye irritant  
Chelidonium majus Greater Celandine Harmful if eaten / skin and eye irritant  
Chrysanthemum Chrysanthemum May cause skin allergy  
Colocasia esculenta Cocoyam Harmful if eaten / skin and eye irritant  
Cupressocyparis leylandii Leyland Cypress May cause skin allergy  
Delphinium Larkspur Harmful if eaten  
Dictamnus albus Burning Bush Skin irritant with sunlight  
Dracunculus Dragon Arum Harmful if eaten / skin and eye irritant  
Echium Viper's Bugloss Skin irritant  
Epipremnum Devil's Ivy Harmful if eaten / skin and eye irritant  
Euonymus Spindle Tree Harmful if eaten  
Ficus benjamina Weeping Fig May cause skin allergy  
Ficus carica Common Fig Skin irritant with sunlight  
Femontodendron California Beauty Skin and eye irritant  
Gaultheria section Pernettya Prickly Heath Harmful if eaten  
Gelsemium False Jasmine Harmful if eaten Top
Hedera Ivy Harmful if eaten / may cause skin allergy  
Helleborus Christmas Rose Harmful if eaten / skin irritant  
Hippeastrum Amaryllis Harmful if eaten  
Homeria Homeria Harmful if eaten  
Hyacinthoides Bluebell Harmful if eaten  
Hyacinthus Common Hyacinth Harmful if eaten / skin irritant  
Hypericum perforatum St. John's Wort Harmful if eaten  
Ipomoea Morning Glory Harmful if eaten  
Iris Yellow Iris Harmful if eaten  
Kalmia Calico Bush Harmful if eaten  
Lagenaria Bottle Gourd Harmful if eaten  
Lugustrum Garden Privet Harmful if eaten  
Lobelia (except L. erinus) Lobelia Harmful if eaten  
Lupinus Lupin Harmful if eaten  
Lysichiton Skunk Cabbage Harmful if eaten / skin and eye irritant  
Mirabilis Marvel of Peru Harmful if eaten / skin irritant  
Monstera deliciosa Cheese Plant Harmful if eaten / skin and eye irritant  
Narcissus Daffodil Harmful if eaten / skin irritant  
Nicotiana Tobacco Plant Harmful if eaten  
Opuntia microdasys Bunny Ears Skin irritant Top
Ornithogalum Star of Bethlehem Harmful if eaten  
Papaver somniferum Poppy Harmful if eaten  
Passiflora caerulea Passion Flower Harmful if eaten (fruit is edible)  
Pedilanthus Slipper Cactus Harmful if eaten / skin and eye irritant  
Philodendron Philodendron Harmful if eaten / skin and eye irritant  
Podophyllum May Apple Harmful if eaten  
Polygonatum Solomon's Seal Harmful if eaten  
Polyscias Dinner Plate Aralia Harmful if eaten / skin and eye irritant  
Prunus laurocerasus and lusitanica Cherry Seed kernels harmful if eaten  
Rhamnus Buckthorn Harmful if eaten  
Rhapidophora Shingle Plant Harmful if eaten / skin and eye irritant  
Robinia psuedoacacia Acacia Harmful if eaten  
Sambucus (except S. nigra) Elder Harmful if eaten  
Schefflera Umbrella Plant May cause skin allergy  
Scilla Scilla Harmful if eaten  
Solanum (cultivated ornamental species except S. dulcamara) Solanum Harmful if eaten Top
Solanum psuedocapsicum Christmas Cherry Harmful if eaten  
Spartium junceum Spanish Broom Harmful if eaten  
Spathiphyllum Peace Lily Harmful if eaten / skin and eye irritant  
Symphoricarpos Snowberry Harmful if eaten  
Symphytum Comfrey Harmful if eaten  
Syngonium