Thompson & Morgan Dianthus Summer Sundae - 30 Seeds
Dianthus Summer Sundae is a summer flowering hardy perennial that will produce an abundance of swe...Dianthus Summer Sundae is a summer flowering hardy perennial that will produce an abundance of sweet scented blooms in its first year. A great choice for a cutting garden. Easy to sow and grow - ideal for cottage garden borders, bed and containers. The petals can be used to decorate cakes and flavour soups, salads and sauces. Sow February to April. Germinate at 18-20C (64-68F) on the surface of a good free draining, damp seed compost. Do not cover the seed. Place in a propagator or seal container inside a polythene bag until after germination which usually takes 7-21 days. Do not exclude light, as this helps germination. Transplant seedlings when large enough to handle into trays or 7.5cm (3in) pots. Grow on in cooler conditions for 10-15 days before planting out after all risk of frost, 30cm (12in) apart. Supplied as 1 x seed packet (containing 30 seeds per pack). Position: Full Sun. Height: Up to 60cm (23.6in) when fully established. Spread: Up to 30cm (11.8in) when fully established. Features: A great cutting flower for garden borders and patio containers. Specially selected seed that will flower in its first year! Will produce scented blooms from June - August which are attractive to pollinating insects.
Dianthus Summer Sundae Seeds - Size: 20 X 10 X 5Cm - Wilko Multi Thompson & MorganFree delivery in 1–3 days£9.00Visit shop →
Product Information
Full details
The Thompson & Morgan Dianthus Summer Sundae is a hardy perennial ideal for home gardeners looking to add fragrance and color to cottage gardens, borders, and patio containers. Known for producing sweet-scented blooms in its first year, this versatile plant serves as an excellent choice for cut flower arrangements and even culinary applications, though growers must ensure they have a consistent, frost-free environment for initial germination and seedling development.
All features
Model Part Number
26317
Brand
Thompson & Morgan
Extended Product Information
FAQs
When is the best time to sow Dianthus Summer Sundae?
Sow your seeds indoors between February and April.
Do I need to cover the seeds with soil?
No, you should not cover the seeds because they require light to germinate effectively.
Can these flowers be used in cooking?
Yes, the petals are edible and can be used to garnish cakes, salads, and soups.
How much space does each plant need?
Once fully established, allow for a 30cm spread per plant.
Are these plants safe for pollinators?
Absolutely; the scented blooms are specifically noted for attracting bees and butterflies.
When can I move the plants outside?
Plant them outdoors only after all risk of frost has passed in your region.
Troubleshooting
Seeds failing to germinate
Ensure they are not covered by soil, as light is required for germination, and maintain the recommended temperature range.
Seedlings look weak or spindly
Provide more natural light and ensure the environment is not overly humid once germination has occurred.
Plant growth is stunted
Check that the soil is free-draining and that the plants are receiving at least 6-8 hours of full sun daily.
Pros and Cons
Pros
Produces scented flowers in the first year of growth
Suitable for both aesthetic garden displays and culinary use
Requires specific temperature control during germination
Cannot be planted outside until all frost risk has passed
Seeds require light to germinate, necessitating careful placement
Needs free-draining compost to prevent root issues
Setup, Compatibility & Care
Sowing: Sow seeds between February and April on the surface of quality, free-draining seed compost.
Germination: Maintain temperatures between 18-20C (64-68F). Do not cover seeds as they require light to germinate. Use a propagator or a sealed polythene bag to retain humidity.
Transplanting: Move seedlings into 7.5cm pots once they are large enough to handle.
Acclimatization: Keep in cooler conditions for 10-15 days after initial growth before moving outdoors.
Planting: Transplant into final garden positions after the last frost, ensuring 30cm of space between plants.