Care Sheets & Tips

POISONOUS PLANTS

Houseplants cultivated garden plants and ornamentals are the cause of many poisonings. However, some are attributable to native or naturalized plants. The most commonly reported plant poisonings result from curious children eating fruit and plant fragments.

A review of the available literature has shown that problems exist for doctors who have to diagnose and treat cases of plant induced poisoning in Ontario. The initial problem is in determining whether the symptoms are indeed caused by plant toxins.

The second is in acquiring a positive identification of the plant involved. In addition, well-documented literature is often not available on previous cases of poisoning and treatment. Regional Ontario Hospital control centres present in various areas of Ontario are the best sources of information.

Houseplants

• Amaryllis – bulb
• Anthurium – all parts
• Azalea – all parts
• Bird of Paradise – seeds, pod
• Burro’s Tail – all parts
• Calla Lily – leaves and roots
• Castor Bean – seeds and leaves
• Crown of Thorms – sap
• Cyclamen – bulb
• Dieffenbachia – all parts
• English Ivy – leaves
• Hydrangea – leaves
• Jerusalem Cherry – all parts
• Lantana Camara – green berries
• Milk Bush (Euphorbia) – sap
• Mistletoe – all parts
• Philodendron – leaves, stem
• Poinsetta – sap
• Oleander – all parts

Trees and Shrubs

• Caragana – seeds
• Daphne – berries
• Euonymus – leaves, bark, fruit
• Juniper – berries
• Malus – apple, seeds
• Prunus – black cherry - seeds
• Pincherry – foliage, stems and seeds
• Chokecherry – seeds
• Rhamnus – Buckhorn – fruit
• Rhododendron – all par
• Gingko – maidenhair tree
• Aesculus – Horse Chestnut – nuts
• Gymnocladus – Coffee Tree – seed pulp
• Laburnum – Golden Chain– seeds
• Ligustrum – Common Privet – berries
• Robinia – Black locust – seeds
• Wisteria – seeds
• Hydrangea – leaves and roots
• Taxus – Yews – seeds

Perennials

• Aconitum – Monkshood – roots
• Arisaema – Jack-in-the-Pulpit – Rhizome
• Clematis – all parts
• Colchicum – Autumn Crocus – bulbs
• Convallaria – Lily of the Valley – all parts
• Datura – Jimsonweed – all parts
• Delphinium – Larkspur – young plant, seeds
• Dicentra – Bleeding Heart – foliage, roots
• Dictamus – Gasplant – all parts
• Digitalis – Foxglove – leaves
• Euphorbia – Spurge – all parts
• Helenium – Sneezeweed – all parts
• Iris – roots, leaves
• Lathyrus – Perennial Sweet Pea – seeds
• Lupines – all parts
• Papaver – Poppy – all parts
• Parthenocissus – Virginia Creeper – berries
• Perennial Lobelia – all parts
• Rudbeckia – Coneflower – all parts

Annuals

• Nicotiana – all parts
• Castor Bean – seeds

Herbs

• Echium – Blueweed – leaves, stem
• Phytolacca – pokeweed – seeds
• Rheum – Rhurbarb – leaves
• Solanum – Night Shade – berries

Bulbs

• Amaryllis – bulb
• Hyacinth – bulb
• Narcissus – Daffodil – all parts
• Scilla – all parts
• Snow Drops – all parts
• Tulip – bulb
  
  

Bonsai

Butterfly Bush & Bluebeard

Favourite Herbs

Gardening For Moist Area

Growing Ornamental Vines

Growing Your Own Asparagus, Rhubard, Strawberries & Raspberries

Grubs In The Lawn

Houseplant Pests

How to Maintain Your Newly Planted Trees And Shrubs

Hydrangeas

Japanese Maple Care Sheet

Ornamental Grasses

Perennials For Shade

Planting And Growing Hedges

Planting Vegetables

Plants To Attract Hummingbirds

Poisonous Plants

Rhododendrons & Azaleas

Rock Garden Plantings

Rose Care Throughout The Year

Roses: Type And Pruning

Tropical Foliage Plants

Water Garden Design

Water Lilies And Aquatic Gardens