Plectranthus caninus, commonly known as Dogbane Plant, Scaredy Cat Plant, or Coleus caninus, is an herbaceous perennial recognized for its purported ability to deter certain animals, particularly dogs and cats, due to its strong, somewhat pungent odor. While not visually striking in the same way as some ornamental plants, its practical applications and ease of growth make it a noteworthy addition to gardens and landscapes.
 
Key Features of Plectranthus caninus
Aromatic Foliage: The primary characteristic is its foliage, which emits a strong, somewhat skunky or peppery odor when crushed or brushed against. This scent is believed to be the source of its animal-deterrent properties.
Scalloped Leaves: The leaves are typically ovate toothed or scalloped margins, and a soft, hairy texture.
Green to Grey-Green Leaves: The leaves are usually green to grey-green in color.
Square Stems: Like other members of the mint family (Lamiaceae), it features square stems.
Modest Flowers: It can produce spikes of small, pale blue to lavender flowers, although these are not its main ornamental feature and may not appear reliably.
Relatively Fast Growth: It is known for its relatively quick growth rate.
 
Care for Your Plectranthus caninus
Light: Prefers partial shade to full sun. In hotter climates, some afternoon shade is beneficial to prevent leaf scorch.
Soil: Thrives in well-draining soil that is moderately fertile.
Watering: Water regularly, especially during dry periods, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out between waterings.
Temperature: Prefers 1 mild to warm temperatures and is generally not frost-hardy. It is typically grown as an annual in colder climates.  
Humidity: Adapts to a range of humidity levels.
 
Maintenance for a Thriving Plant
Pinching Back: Pinching back the growing tips can encourage bushier growth and prevent the plant from becoming leggy.
Deadheading: Removing spent flower spikes can help to maintain a tidier appearance, although flowering is not the primary focus.
Overwintering (in colder climates): In regions with frost, the plant can be brought indoors and treated as a houseplant during the winter, though it may not thrive as vigorously as during the growing season. Alternatively, it can be grown as an annual and replanted each year.
Pest and Disease Resistance: Generally, it is relatively resistant to pests and diseases.
 
Propagation Methods for Expanding Your Collection
Stem Cuttings: Stem cuttings root readily in water or moist potting mix. Take cuttings a few inches long, remove the lower leaves, and place them in water or directly into soil.
Seed: It can be propagated from seed, although germination rates can vary. Sow seeds indoors several weeks before the last expected frost or directly outdoors after the danger of frost has passed.
 
Plectranthus caninus offers a practical solution for gardeners seeking to deter certain animals from specific areas. While its floral display is modest, its ease of cultivation and aromatic foliage make it a useful and relatively low-maintenance addition to gardens and landscapes.
 
 
* Picture and information intended only as a guide.  Size and colours of plants will vary, not any 1 plant is exactly the same and minor variations will occur.
 
** All plants will be posted bare rooted.