Sweet William - Dianthus barbatus plant

Flowering

Annual

Sweet William 'Roundabout Mix' offers a delightful splash of colour for any garden. These bedding plants are ideal for adding charm to your outdoor space. Explore our Sweet William collection for more vibrant varieties.

Vibrant Sweet William blooms
Suitable for UK gardens
Easy-to-grow plug plants
Ideal for bedding and pots
Long-lasting flowering season

Perfect for gardeners seeking to brighten their garden with ease, Sweet William 'Roundabout Mix' is an excellent choice to enhance your landscape. Discover more options in our Bedding & Flowering Plants collection.

Long Flowering

Trending

Easy to Grow

Colourful

Details

Sweet William 'Roundabout Mix' is a classic and versatile variety that features a mix of bold colours, including shades of pink, red, white, and purple. These flowers are perfect for adding a timeless charm to gardens, borders, containers, and window boxes. With a long flowering season from late spring to summer, 'Roundabout Mix' offers continuous colour and a delightful fragrance, making it a popular choice for any garden.

Grows best in full sun to partial shade
Ideal for gardens, borders, containers, and window boxes
Produces a striking mix of colours with a sweet fragrance
Long flowering season from late spring to summer

What's Included

Packs: Start with a pack of strong seedlings. They have robust roots and are ready to plant in your garden or pots. Perfect for early garden starts.

Delivery & Guarantee

Fast & Secure Delivery: We ship orders the same or next day, ensuring fast delivery via tracked Royal Mail or Parcel Force for larger items.

Shipping is FREE on all orders £60+

Bespoke & Secure Packaging: Our plants travel in custom packaging we've perfected over the years, arriving in excellent condition, thoroughly inspected, trimmed, and prepped.

100% Happiness Guarantee: Not happy with your purchase? We offer a full refund or replacement, even if you just change your mind, along with easy returns and prepaid postage.

Care Information

Sunlight	Full Sun to Partial Shade
Position	Sheltered
Soil	Well drained soil
Planting Time	Spring/Autumn
Moisture	Regular
Hardiness	Semi-hardy
Growth Rate	Medium
Spacing	20-30cm
Height and Spread	15cm x 20-30cm
Annual or Perennial	Annual

Best Quality Plants

Delivered With Care

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Best Quality Plants

Delivered With Care

Money-back Guarantee

What You Need To Know About “Sweet William - Dianthus barbatus plant”

Plant Information

How To Plant

Plant Care

Sweet William 'Roundabout Mix' is a classic variety that brings vibrant colour and fragrance to any garden. Known for its mix of bold colours, it is perfect for gardens, borders, containers, and window boxes.

Grows best in full sun to partial shade
Ideal for gardens, borders, containers, and window boxes
Produces a striking mix of colours with a sweet fragrance
Long flowering season from late spring to summer

Grows best in full sun to partial shade
Ideal for gardens, borders, containers, and window boxes
Produces a striking mix of colours with a sweet fragrance
Long flowering season from late spring to summer

Planting Time:	Spring to Autumn
Sunlight & Positioning:	Full Sun to Partial Shade
Where to Plant:	Garden Beds - Borders - Containers
Growing Location:	Garden - Patio - Balcony

Planting Time:	Spring to Autumn
Sunlight & Positioning:	Full Sun to Partial Shade
Where to Plant:	Garden Beds - Borders - Containers
Growing Location:	Garden - Patio - Balcony

Choose a sunny or partially shaded area for your Sweet William 'Roundabout Mix' plants, whether in a garden, border, container, or window box. Plant them in well-drained soil for vibrant and fragrant blooms.

Sweet Williams need full sun to partial shade, so choose a spot with good light
Plant in well-drained soil, spacing plants about 20-30cm apart
Water well after planting to help establish roots
Ideal for planting in groups for a mass of colourful, fragrant blooms

Sweet Williams need full sun to partial shade, so choose a spot with good light
Plant in well-drained soil, spacing plants about 20-30cm apart
Water well after planting to help establish roots
Ideal for planting in groups for a mass of colourful, fragrant blooms

Choose the Right Spot:	A sunny or partially shaded location with good light
Prepare the Soil:	Loosen soil and mix in compost or organic matter
Planting:	Plant level with the soil and firm soil down around the plant
Spacing:	Space plants about 15-20cm apart for good air circulation

Choose the Right Spot:	A sunny or partially shaded location with good light
Prepare the Soil:	Loosen soil and mix in compost or organic matter
Planting:	Plant level with the soil and firm soil down around the plant
Spacing:	Space plants about 15-20cm apart for good air circulation

Sweet William 'Roundabout Mix' is easy to care for and will provide vibrant, fragrant blooms throughout late spring and summer. With proper planting and care, you’ll enjoy a garden full of classic and colourful flowers.

Water regularly during dry periods, especially in the growing season
Deadhead spent flowers to encourage further blooming
Mulch around the plants to retain moisture and suppress weeds
Trim plants back after flowering to maintain a neat appearance

Water regularly during dry periods, especially in the growing season
Deadhead spent flowers to encourage further blooming
Mulch around the plants to retain moisture and suppress weeds
Trim plants back after flowering to maintain a neat appearance

Sunlight and Position:	Needs 4-6 hours of sunlight or partial shade daily
Watering and Feeding:	Water regularly, especially in hot weather
Support and Pruning:	Deadhead spent flowers to encourage continuous blooming
Additional Tips:	Mulch around plants to retain moisture and suppress weed

Sunlight and Position:	Needs 4-6 hours of sunlight or partial shade daily
Watering and Feeding:	Water regularly, especially in hot weather
Support and Pruning:	Deadhead spent flowers to encourage continuous blooming
Additional Tips:	Mulch around plants to retain moisture and suppress weed