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
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Partial shade
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Very little water
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Not Frost hardy
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Free draining and fertile
Common name
Dogbane
Latin name
Plectranthus caninus
type
Herbaceous Perennials
family
Lamiaceae
ph
6.1 - 7.8 Acid - Neutral
Plant & bloom calendar
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Best time to plant
full grown dimensions
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.