Dahlia Tournesol - Single flowered Dahlia
Dahlia Tournesol
Dahlia Tournesol
Dahlia
Special offer!
Receive a €20 voucher for any order over €90 (excluding delivery costs, credit notes, and plastic-free options)!
1- Add your favorite plants to your cart.
2- Once you have reached €90, confirm your order (you can even choose the delivery date!).
3- As soon as your order is shipped, you will receive an email containing your voucher code, valid for 3 months (90 days).
Your voucher is unique and can only be used once, for any order with a minimum value of €20, excluding delivery costs.
Can be combined with other current offers, non-divisible and non-refundable.
Home or relay delivery (depending on size and destination)
Schedule delivery date,
and select date in basket
This plant carries a 6 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Would this plant suit my garden?
Set up your Plantfit profile →
Description
Dahlia Tournesol, with single, sunny yellow flowers, brings light and cheer to borders, from summer to autumn. The plant forms a beautiful clump 1m tall and produces large flower heads visible from afar, borne on sturdy stems. Easy to grow in full sun in fertile soil, it is suitable for natural gardens favourable to pollinating insects.
Belonging to the Asteraceae family, Dahlia Tournesol is a distant descendant of Mexican species such as D. pinnata and D. coccinea, native to the high plateaus of Mexico and Central America.
Tournesol is a cultivar released in 2025. The plant forms an upright clump, fast-growing, with a bushy habit, reaching about 1 m tall and 50–60 cm wide. The green and channelled, hollow stems bear opposite leaves, composed of ovate lanceolate, medium green, toothed leaflets. The inflorescences are single flower heads 12–14 cm in diameter, consisting of a crown of bright yellow ligulate flowers (or "petals") surrounding a central disc of golden yellow tubular flowers rich in pollen and nectar. Flowering continues from July to October, until the first frosts, if spent blooms are removed.
The root system consists of swollen tuberised roots, clustered around a collar bearing "eyes"; the plant produces offshoots from this collar. The tubers are destroyed by frost; lift and store in a dry, frost-free place.
Plant Dahlia 'Tournesol' in full sun, in humus-rich, well-drained soil, in borders, at the back of a border, or the centre of a large pot. Its bright yellow colour pairs well with the violet flowering of large salvias such as Salvia 'Amistad', white cosmos Sensation Purity or soft grasses like Pennisetum alopecuroides Red Head. To extend the season and vary the forms, combine it with other dahlias: Bishop of Llandaff (single red with purple foliage), Kelsey Annie Joy (collarette), and a soft yellow cactus dahlia like Shooting Star.
The horticultural use of dahlias in Europe dates back to their introduction from Mexico at the end of the 18th century. Mesoamerican peoples were already cultivating these plants for their roots and hollow stems. Among the Aztecs, stems of Dahlia imperialis were sometimes used as water pipes, and the tubers were used as a food resource due to their inulin content.
Plant habit
Flowering
Foliage
Botanical data
Dahlia
Tournesol
Asteraceae
Dahlia
Cultivar or hybrid
Planting and care
Dahlia Tournesol is easy to grow in all regions. For a generous flowering, it is good to follow a few simple rules: plant the tubers in full sun after the last frosts. Rich, moist but well-drained soils are perfect. Stagnant moisture, on the other hand, would promote rotting of the tubers. Add compost and sand to the soil if needed. Work the soil deeply and enrich it with, for example, ground horn or dried blood. Place your tuber and crumble the soil well to fill in without air pockets. Your dahlia should be covered with about 6 cm of soil. After planting, water once abundantly, then water regularly during the first 6 weeks to help rooting.
Dahlias are sensitive to cold, so they most often need to be overwintered. In November, when the first frosts blacken the foliage, this is the time to lift them. Carefully dig up the tubers. Remove as much soil as possible. Let the foliage dry so that the tubers can rebuild their reserves. Then cut the stems to 10 cm. Spread your bulbs in a crate on newspaper. Store them away from frost in a dry, cool and dark place, such as a frost-free garage or an attic. In southern regions, near the coast, experiencing only a few frost days per year, and moderate frosts (-5 °C), it is possible to leave them in place. In this case, simply cover the soil with a thick mulch of leaves or straw as protection.
Planting period
Intended location
Care
Planting & care advice
This item has not been reviewed yet - be the first to leave a review about it.
Similar products
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Haven't found what you were looking for?
Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
Photo Sharing Terms & Conditions
In order to encourage gardeners to interact and share their experiences, Promesse de fleurs offers various media enabling content to be uploaded onto its Site - in particular via the ‘Photo sharing’ module.
The User agrees to refrain from:
- Posting any content that is illegal, prejudicial, insulting, racist, inciteful to hatred, revisionist, contrary to public decency, that infringes on privacy or on the privacy rights of third parties, in particular the publicity rights of persons and goods, intellectual property rights, or the right to privacy.
- Submitting content on behalf of a third party;
- Impersonate the identity of a third party and/or publish any personal information about a third party;
In general, the User undertakes to refrain from any unethical behaviour.
All Content (in particular text, comments, files, images, photos, videos, creative works, etc.), which may be subject to property or intellectual property rights, image or other private rights, shall remain the property of the User, subject to the limited rights granted by the terms of the licence granted by Promesse de fleurs as stated below. Users are at liberty to publish or not to publish such Content on the Site, notably via the ‘Photo Sharing’ facility, and accept that this Content shall be made public and freely accessible, notably on the Internet.
Users further acknowledge, undertake to have ,and guarantee that they hold all necessary rights and permissions to publish such material on the Site, in particular with regard to the legislation in force pertaining to any privacy, property, intellectual property, image, or contractual rights, or rights of any other nature. By publishing such Content on the Site, Users acknowledge accepting full liability as publishers of the Content within the meaning of the law, and grant Promesse de fleurs, free of charge, an inclusive, worldwide licence for the said Content for the entire duration of its publication, including all reproduction, representation, up/downloading, displaying, performing, transmission, and storage rights.
Users also grant permission for their name to be linked to the Content and accept that this link may not always be made available.
By engaging in posting material, Users consent to their Content becoming automatically accessible on the Internet, in particular on other sites and/or blogs and/or web pages of the Promesse de fleurs site, including in particular social pages and the Promesse de fleurs catalogue.
Users may secure the removal of entrusted content free of charge by issuing a simple request via our contact form.
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.