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Conservatory Info
Conservatory Info

8 Plants You May Not Want in Your Conservatory (Part 2 of 2)


We're in the second half of our list of plants you may not want to consider growing in your conservatory. As we've written in our last blog post, beautiful flowers can be lethal when ingested. The next four flowers we list here are also equally beautiful and dangerous.




Like the foxglove, the larkspur add height and colour to any garden with its white, yellow, red, blue, or purple flowers. Also like the foxglove, all parts of this plant are toxic that they have caused fatal poisoning among cattle. To humans, ingesting any part of this flower especially its seeds and young leaves can immediately cause nausea, vomiting, and abdominal pain. In worst cases, it can also cause death.





This widely cultivated shrub is one of the most poisonous and yet beautiful of commonly grown plants. Although more animals than human have been fatally poisoned by the oleander, a single leaf can have enough poison to be deadly to children. It’s so toxic, in fact, that physical contact with its sap can cause irritation and blistering. On the other hand, taking it internally will cause vomiting, diarrhoea, and abdominal pain. At high doses, ingestion of this shrub can also lead to death.





This Christmas flower is probably the safest in this list (and may not even deserve being here at all). Although there are myths about it being more poisonous than it really is, it only causes mouth and stomach irritation and vomiting at worst. Sure, not as lethal as cardiac arrest or slow pulse rate but it’s still better to keep it away from pets and young children.





Unlike its fellow holiday plant, the mistletoe can be quite dangerous when ingested. The European mistletoe, the only native species in the Great Britain, can cause diarrhoea, abdominal pain, and slow pulse rate. Pets are particularly vulnerable to its toxicsso keep the white barriers away hungry jaws or paws during the Christmas season.


All these plants have their own charm but these are something you definitely won't want in your tea or something you should give time to consider growing in your conservatory especially when you have pets and young children at home. For the full list of deadliest garden plants, visit This Old House.

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