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Dogbane in the GardenTags plant encyclopedia

Plectranthus caninus

 

Dogbane

Plectranthus are warm-climate plants occurring largely in the southern hemisphere. Closely related to Solenostemon, they are commonly called spurflowers. They can be grown in a cool greenhouse or conservatory or outdoors in baskets, pots or in sunny borders. The foliage is often ornamental and the flowers are small but are often borne in good-size racemes in shades of purple, pink, white, or blue. P. caninus has soft gray-green foliage which releases a scent that is not noticeable to humans but is disliked by animals. Grow a few plants in pots so they can be moved easily to areas where a dog or cat repellent is needed!

Contributed by @TimbitsMumMum

 
plant Features
  • Dogbane likes partial shade

    Partial shade

  • Dogbane likes very little water

    Very little water

  • Dogbane is not frost hardy

    Not Frost hardy

  • Dogbane likes free draining and fertile

    Free draining and fertile

 
plant information

Common name

Dogbane

Latin name

Plectranthus caninus

type

Herbaceous Perennials

family

Lamiaceae

ph

6.1 - 7.8 Acid - Neutral

  • Light

    Dogbane likes partial shade

    Partial shade

  • Frost

    Dogbane is not frost hardy

    Not Frost hardy

  • Soil

    Dogbane likes free draining and fertile

    Free draining and fertile

  • Water

    Dogbane likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant

full grown dimensions

The size of a fully grown Dogbane is 0.30meters x 0.40meters 0.30 M 0.40 M

Plectranthus caninus

Plectranthus are warm-climate plants occurring largely in the southern hemisphere. Closely related to Solenostemon, they are commonly called spurflowers. They can be grown in a cool greenhouse or conservatory or outdoors in baskets, pots or in sunny borders. The foliage is often ornamental and the flowers are small but are often borne in good-size racemes in shades of purple, pink, white, or blue. P. caninus has soft gray-green foliage which releases a scent that is not noticeable to humans but is disliked by animals. Grow a few plants in pots so they can be moved easily to areas where a dog or cat repellent is needed!


Planting

From Early Spring TO Early Spring

Plectranthus needs well-drained soil of moderate fertility in dappled shade. Most species are not hardy and will not survive outdoors in temporate regions. If grown indoors, provide full light but with protection from hot sun. Water freely and fertilise monthly during active growth, but keep just moist in winter.

 

Propagation

From Early Spring TO Late Winter

Divide in spring, or take stem-tip cuttings any time. Rooted branches of trailing species can be removed. To grow from seed, sow ripe seed at 66° to 75°F.

 
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