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Dianthus ‘Cocktail Cosmopolitan’
(Pinks (PBR) (WP15 PIE43))


£18.00 £14.40
Easy Care
40cm x 40cm
Fully Hardy

Our horticulture team chose Dianthus ‘Cocktail Cosmopolitan’ for its stunning bicolour blooms and intoxicating fragrance. It thrives in borders or containers, adding colour to any garden space. Pair it with companions like Lavender or Salvia for a delightful mix of colours and scents. This dianthus is a versatile choice, bringing beauty and fragrance to gardens, making it a true favourite among both novice and experienced gardeners.

Additional information

Plant Type
Flowering Period
Flower Colour
Fully Grown Size
Garden Position
Light Level
RHS Garden Merit Award
RHS Plants For Pollinators
Pot Size
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Get ready to add a little sophistication to your garden with Dianthus Cosmopolitan! This stylish plant boasts delicate, pink and white blooms that are perfect for creating a classic and elegant look. With its compact size and long blooming period, Dianthus Cosmopolitan is a versatile plant that can be used in a variety of settings. It's great for borders, containers, and rock gardens, and can even be used as a groundcover. But don't let its elegant appearance fool you - this plant is also low-maintenance and easy to care for. Dianthus Cosmopolitan prefers full sun and well-draining soil, and can tolerate some drought. It's also deer-resistant, making it a great choice for gardens in areas with high deer populations. And with its sweet fragrance and attractive foliage, Dianthus Cosmopolitan is sure to be a crowd-pleaser. It's a favourite of pollinators like bees and butterflies, and adds a touch of class to any garden. So whether you're looking to add a little sophistication to your outdoor space or simply enjoy a plant that's easy to care for, Dianthus Cosmopolitan is the perfect choice. Cheers to a plant that's as chic and stylish as a classic cocktail!

Planting Conditions

Dianthus 'Cocktail Cosmopolitan' thrives in well-drained soil with a neutral to slightly alkaline pH. We recommend choosing a planting site with full sun exposure for optimal growth and flowering. Before planting, amend the soil with organic matter to improve drainage and fertility. Dig a hole slightly larger than the plant's root ball, gently place the plant, and backfill with soil. Ensure the crown of the plant is at soil level. Water thoroughly after planting and maintain even moisture levels, especially during dry spells.

Watering & Feeding

We advise watering Dianthus 'Cocktail Cosmopolitan' regularly, allowing the soil to dry slightly between watering to prevent waterlogging. Aim for deep, thorough watering rather than frequent shallow watering. During periods of active growth, provide a balanced liquid fertiliser every 4-6 weeks to support healthy foliage and flowering. Avoid excessive fertilisation, as it may lead to leggy growth or reduced flowering. Mulching around the base of the plant helps retain soil moisture and suppresses weeds. Adjust watering and feeding based on environmental conditions and plant response for optimal growth and blooming.

General Care

Dianthus 'Cocktail Cosmopolitan' benefits from regular care to maintain its health and appearance. We recommend deadheading spent flowers to encourage continuous blooming and prevent self-seeding. Remove any yellowing or dead foliage to promote air circulation and reduce the risk of disease. While generally resistant to pests and diseases, monitor for signs of aphids or fungal infections like powdery mildew, addressing any issues promptly. Prune back leggy stems and shape the plant after flowering to maintain its compact form. With proper care, this dianthus variety provides colourful blooms and a powerful fragrance to the garden.