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These Are The Most Poisonous Plants To Dogs - and Many of Them Could Be In YOUR Garden

Katie Court
Authored by Katie Court
Posted: Wednesday, July 10, 2024 - 12:00

As the weather gets warmer in the UK, dog owners are taking their dogs on more walks. Whether this is on your local nature reserve, woodland or the beach - we’re all taking advantage of the extra Vitamin D. But there are a whole host of silent dangers many dog owners aren’t even aware of. 

Dog experts Kennel Store have revealed a detailed list of plants that are toxic for dogs, explained the symptoms of plant poisoning and what the next steps should be for concerned dog owners. 

There are many varieties of plant and it is incredibly difficult to tell which is toxic and which isn’t. Some of these are highly poisonous and can have devastating effects, whereas others may appear milder such as an upset stomach. Below are a list of plants that are toxic to dogs: 

Plants toxic to dogs

  • Autumn crocus (Colchicum autumnale)
  • Azalea/rhododendrons (Rhododendron species)
  • Bluebells (Hyacinthoides species)
  • Common poppy (Papaver rhoeas)
  • Cotoneaster (Cotoneaster species)
  • Crocuses (Crocus species)
  • Daffodils (Narcissus species)
  • Dumbcane (Diffenbachia species)
  • Foxgloves (Digitalis species)
  • Garden star-of-Bethlehem (Ornithogalum umbellatum)
  • Grape vine fruits (Vitis vinifera)
  • Giant hogweed (Heracleum mantegazzianum)
  • Holly (Ilex aquifolium)
  • Horse chestnut (Aesculus hippocastanum) – be aware of conkers in autumn that can cause problems such as gut blockages
  • Hyaciniths (Hyacinthus orientalis)
  • Ivy (Hedera helix)
  • Laburnum (Laburnum anagyroides)
  • Lily of the valley (Convallaria majalis)
  • Mistletoe (viscum Album)
  • Onion and garlic plants (Allium species)
  • Oak (Quercus species) – look out for acorns in autumn that can cause problems such as gut blockages
  • Oleander (Nerium oleander)
  • Potato plants (Solanum tuberosum)
  • Pieris plants (Pieris species)
  • Rowan (Sorbus aucuparia)
  • Rhubarb plants (Rheum species)
  • Snowdrops (Galanthus)
  • Tulips (Tulipa species)
  • Yew (Taxus species)

Symptoms of plant poisoning in dogs 

  • Drooling
  • Rashes
  • Not eating
  • Low energy
  • Pale gums
  • Vomiting or diarrhoea – especially if bits of chewed up plants are in it
  • Drinking or urinating more
  • Red skin
  • Mouth ulcers
  • Twitching or seizures
  • Collapse

What to do if you think your dog has been poisoned 

If you think your dog has been poisoned or comes into contact with a toxic plant, you should speak to a vet straight away. Try to note down what you think your dog may have come in contact with, when they came into contact and what symptoms you have seen so far.”

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