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Cynoglossum officinale (Hound's Tongue)

Cynoglossum officinale, also known as Hound's Tongue, is a perennial herb that is sometimes grown in NZ gardens for its unique foliage and clusters of reddish purple flowers. Its coarse leaves have a distinctive texture, while its upright stems add height and interest to planting schemes. Though not as commonly cultivated as other ornamentals, Cynoglossum officinale offers a natural, wildflower-style appeal and can be used to add character to informal or cottage-style gardens.

Cynoglossum officinale plant with red flowers and coarse-green leaves.

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Suited to regions:Subtropical, Temperate
Plant type:Perennials
Height:70 cm
Spread:40 cm
Flowering time:Spring, Summer
Tolerances:
Garden uses:Borders, Living areas, Paths & Steps
Garden styles:Backyard, City & Courtyard, Frontyard, Modern
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known as
Sku10624

How to grow Cynoglossum officinale in NZ

Cynoglossum officinale prefers well drained soil and thrives in sunny to partially shaded conditions. In NZ, it is often found in naturalised areas but can also be cultivated in home gardens. Plant it in a spot with good airflow to reduce the chance of fungal issues. It will tolerate poorer soils and is relatively hardy once established. With little intervention, Cynoglossum officinale will grow steadily and provide colour and texture through spring and summer months.

Cynoglossum officinale care tips

Caring for Cynoglossum officinale is straightforward and requires minimal effort. Water the plant regularly while it is establishing, after which it becomes more drought tolerant. Deadheading spent flowers can prolong its flowering season and encourage tidier growth. Apply a general garden fertiliser in spring to promote healthy growth. Keep an eye on self seeding, as this plant can spread if not managed. With these easy steps, Cynoglossum officinale can be a charming addition to NZ gardens.

Cynoglossum officinale size, spacing, and growth rate

Cynoglossum officinale typically grows to about 60 to 90 cm in height with a spread of 30 to 50 cm. For planting in garden beds, space plants 40 to 60 cm apart to allow adequate airflow and room for growth. It has a moderate growth rate, producing upright stems topped with clusters of small reddish purple flowers in spring and summer. With its unique look and steady growth, Cynoglossum officinale is well suited for wildflower borders and natural style plantings in NZ.

Landscaping uses for Cynoglossum officinale

Cynoglossum officinale is best used in naturalistic or cottage style NZ gardens where its informal growth habit complements wildflowers and ornamental grasses. It adds texture and soft colour to mixed borders and works well in wildflower meadows. Its flowers attract pollinators, making it a beneficial addition to biodiversity focused plantings. With its unique foliage and seasonal flowers, Cynoglossum officinale brings charm and character to relaxed landscape designs.

Why buy Cynoglossum officinale from The Plant Company?

Purchasing Cynoglossum officinale from The Plant Company ensures you receive quality plants grown in NZ with care. As NZ’s most trusted plant nursery, The Plant Company provides strong, healthy plants ready to thrive in your garden. We offer expert growing advice, safe nationwide delivery, and a satisfaction guarantee with every purchase. Add Cynoglossum officinale to your garden with confidence and enjoy a plant that offers unique beauty and natural appeal.

Questions and Answers

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