Is Dieffenbachia Toxic to Dogs?

Is dumbcane toxic to dogs?

Dieffenbachia is toxic to dogs. The toxic principles are proteolytic enzyme and insoluble calcium oxalate crystals known as raphides. Raphides are held in specialised cells called idioblasts, and when a dog chews Dieffenbachia, they penetrate the oral mucosa, triggering the release of histamine by the white blood cells. Damage to the oral mucosa allows proteolytic enzymes to penetrate the tissue, which increases pain and inflammation.

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How to Grow Mini Monstera (Rhaphidophora tetrasperma)

Mini monstera plant profile

What is mini monstera?   Ι    Description  Ι   Care  Ι   Propagation  Ι   Toxicity  Ι   Pests and diseases   Ι  Frequently asked questions

What is mini monstera?

What is mini monstera?
Rhaphidophora tetrasperma – Mini Monstera Split leaf philodendron

Mini monstera (Rhaphidophora tetrasperma) is a tropical plant native to the rainforests of Thailand and Malaysia. The plant has become popular in recent years as a houseplant for its glossy green, pinnatifid foliage and ease of care.

The scientific name Rhaphidophora tetrasperma was given by Sir J. D. Hooker. Despite its common name, it is not actually a species of Monstera,  its name is due to the similarity of its leaf shape to the Swiss Cheese Plant (Monstera deliciosa). The botanical name Tetrasperma means ‘four seeds’ in Latin, tetra > four, sperma > seeds.

The Rhaphidophora family comprises approximately 100 species¹.

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Spoon-Leaf Sundew (Drosera spatulata)

Drosera spatulata

At a glance

  • Family: Droseraceae
  • Botanical name: Drosera spatulata
  • Common names: Spoon-leaf sundew, sundew, rosy sundew, common sundew
  • Plant type: Rhizomatous herb
  • Flower colour: White, pale pink
  • Bloom time: Late winter, early spring
  • Sun exposure: Bright, indirect light to part shade
  • Humidity: 50-75%
  • Soil pH: Moderately acidic 5.5 to 6.5
  • Mature height: 2 cm
  • Flower size: 2.5 cm
  • Soil type: Sandy, boggy heath
  • Habitat: Bushland, sandstone heathland
  • Difficulty level: Easy
Botanical name meaning

Jacques-Julien Labillardière gave the spoon-leaf sundew its botanical name in 1804 from a plant collected in Tasmania.

  • Drosera – From the Greek word droseros which means dewy, referring to the glandular droplets on the leaf
  • spatulata – From the Latin word spatulate, which means shaped like a spatula, referring to the spoon-shaped leaves

What is a spoon-leaf sundew?

Also known as rosy sundew, spoon-leaf sundew (Drosera spatulata) is an insectivorous species of plant belonging to the family Droseraceae, one of the largest genera of carnivorous plants containing over 90 species. Its distribution ranges from Southeast Asia, southern China, Japan, Micronesia, Papua New Guinea, eastern Australia, and New Zealand.

The spatula-shaped leaves of spoon-leaf sundew grow in a characteristic low-growing rosette formation, hence the term rosetted sundew. Glandular trichomes are present on the upper surface of the leaf and produce a mucopolysaccharide droplet to attract and trap insects and sessile glands that secrete enzymes to break down and digest their prey. When the insect lands on a leaf, the tentacles respond to the touch by bending inwards trapping the prey, in a process known as thigmonasty. Insects serve as a secondary food source to the nutrient-poor soil the spoon-leaf sundew grows.

Leaf colour can range from green to red depending on the amount of sunlight the plants get. White or pale pink self-pollinating flowers up to 6 mm across develop on a long spike from spring to winter, followed by small, black fruit that contains seeds.

Sundew flower stalk
Sundew flower stalk

Habitat

Spoon-leaf sundew is commonly found growing in bright, indirect light to part shade in open boggy heath, with acidic, sandy soi

Plants will lose their leaves during dry or overly cold periods. I have witnessed large numbers of spoon-leaf sundews locally that completely vanish during the warmer months. The rhizome remains underground in a dormant state until favourable conditions return.

Care

As long as the plant’s basic needs are met, spoon-leaf sundew is an easy and interesting plant for the green thumb. Spoon-leaf sundews grow naturally in nutrient-poor soil. A succulent mix or sphagnum moss is the preferred growing medium.

Spoon-leaf sundews grow in full sun to part shade and require frequent watering to keep the soil moist at all times. It can help to sit the pot in a saucer with water to keep moisture levels and humidity up. Only use distilled water or rainwater that is low in salts and minerals.

Can be grown outside year-round in tropical climates, but should be brought indoors in areas prone to frost.

Propagation

Spoon-leaf sundew is readily propagated from seed which should be sown in early to mid-spring as the days become longer and temperatures warm.

Frequently asked questions

How big do spoon-leaf sundews get?

Spoon-leaf sundew grows to a width of 2.5 – 5 cm

Are sundews toxic to humans and pets?

Sundews are non-toxic to humans and pets.

Where can I buy a spoon-leaf sundew?

Specialist nurseries often sell sundews, especially during the winter months.  Native plants are protected, and should not be removed from the wild.

Coleus Plant Profile

Coleus

At a glance      What is coleus?      Care      How to grow coleus     Propagating coleus     Pests and diseases     Toxicity

At a glance

Family Lamiaceae
Botanical name Plectranthus scutellarioides syn. Solenostemon scutellarioides
Common names Painted nettle, Flame nettle, Coleus, Indian borage, Bread and
butter plant, Indian thyme, Country borage, East Indian thyme, Spanish thyme,
Stinging thyme
Plant type Herb
Lifespan Perennial, Annual
Soil Rich, moist, well-drained
Mature height 60 cm-100 cm  (23-39 inches)
Sun exposure Full sun to moderate shade
Soil pH Mildly acidic to neutral (6.0 to 7.0)
Leaf colour Varies
Flower colour Purple, blue, white
Symbolism Beauty, good health, growth, tolerance
Toxicity Mildly toxic to cats, dogs, horses, humans
Toxic properties Volatile essential oils (coleon O and diterpene coleonol) and irritant sap

 

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Is Ficus Toxic to Dogs?

Is ficus toxic to dogs?

Is ficus toxic to dogs?

Ficus spp. is toxic to dogs. The toxic principles are ficin, a proteolytic enzyme, and ficusin, a psoralen, which are present in the milky sap. This causes ocular, oral, dermal and gastrointestinal irritation.

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