

Sunflower Pro-Cut Gold Lite DMR seeds - Helianthus annuus
Sunflower Pro-Cut Gold Lite DMR seeds - Helianthus annuus
Helianthus annuus 'Pro-Cut Gold Lite DMR'
Sunflower
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Description
Le Tournesol Pro-Cut® Gold Lite DMR (Helianthus annuus) est reconnaissable à ses capitules bien dressés au sommet d'une tige unique, sans pollen, formés d'un cœur vert doré entouré de pétales dorés. Sélectionné pour la fleuristerie, il offre de longues tiges régulières, une bonne tenue en vase, et une mise à fleurs rapide. Cette variété permet d'échelonner la récolte de fleurs coupées durant tout l'été au jardin.
Helianthus annuus, le Tournesol, appartient à la famille des Astéracées. Cette plante sauvage a été domestiquée de longue date par les peuples autochtones d'Amérique du Nord.
‘Gold Lite DMR’ est un hybride F1 de la série Pro-Cut®, sélectionnée pour la fleur coupée. La série Pro-Cut® a été développée par le généticien américain Dr Tom Heaton (NuFlowers, Californie). Comparé à ‘Pro-Cut® Gold’, ‘Gold Lite DMR’ est un peu plus haut, un peu plus tardif, il possède des ligules plus larges et arrondies.
La plante présente un port érigé et une croissance rapide ; elle atteint 1,20 m à 1,80 m en pleine terre, 0,80 m à 1,50 m dans un grand pot de 40 cm de profondeur minimum.
Ses fleurs sont des capitules solitaires de 10–15 cm de diamètre composés de ligules ou pétales d'un jaune d'or très chaud et d'un disque vert doré à centre doré. Les fleurs sont dépourvues de pollen : elles tiennent plus longtemps en vase et ne laissent pas tomber de "poussière" sur la table. La plante fleurit 55–65 jours après le semis, c'est-à-dire de juillet à septembre pour des semis d’avril à juin. Le feuillage se compose de feuilles ovales à triangulaires, légèrement rêches, de 10 à 30 cm de long, d'un vert moyen. La tige est robuste, pubescente, non ramifiée chez les cultivars Pro-Cut®. Le système racinaire est profond, le pivot pouvant descendre à 1–1,50 m sous terre.
Résistance : la mention DMR signifie « Downy Mildew Resistant », résistance au mildiou du tournesol causé par l’oomycète Plasmopara halstedii, particulièrement problématique en sols frais et humides. Cette résistance limite la verse des plantules et l'apparition d'un feutrage blanchâtre au revers des feuilles.
Au jardin, semez ce tournesol 'Gold Lite DMR' en rubans ou en petits groupes serrés pour obtenir des tiges bien droites. Offrez-lui le plein soleil, un sol profond, drainé, mais frais le temps qu'il s'enracine ; arrosez régulièrement les trois premières semaines, puis modérément. En massif, plantez-le en second plan derrière des vivaces légères et des annuelles de saison : Zinnia ‘Queeny Lime Orange’, Cosmos ‘Double Click Mixed’, Ammi visnaga ‘Green Mist White’ et Salvia farinacea ‘Victoria Blue’ mettront en valeur son coloris très chaud.
Nos conseils bouquets :
Coupez les tiges le matin juste après l’ouverture des fleurs. Supprimez les feuilles en partant du bas pour ne conserver que 2 ou 3 feuilles sous la fleur. Chaque jour, changez l’eau du vase.
Domestiqué par les peuples amérindiens depuis des millénaires pour l’alimentation et l’huile, le tournesol est devenu l’emblème de l’État du Kansas ; son étymologie « fleur-soleil » rappelle aussi l’héliotropisme des jeunes inflorescences.
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Flowering
Foliage
Plant habit
Botanical data
Helianthus
annuus
'Pro-Cut Gold Lite DMR'
Asteraceae
Sunflower
Helianthus annuus Pro-Cut® F1 Gold Lite DMR
Cultivar or hybrid
Planting and care
The 'Pro-Cut F1 Gold Lite DMR' sunflower can be sown:
Either in March-April, in pots under cover, to prepare young plants that can be placed in your borders after the last frosts.
Or from April to June, after the frosts, directly in position. In a sunny spot in your garden. To enjoy beautiful fresh flowers throughout the season, we recommend staggering your sowings as much as possible.
Sow your seeds in groups of 2 at a depth of 1 cm and spaced 50 cm apart. After 20 days, remove the weakest shoot to keep only one per location. The strong growth of the sunflower will require regular watering. When the plant has reached about 1.20 m, you can stop watering and let it make do with rainfall, even if it is scarce. Protect your sowings from snail and slug attacks, as they are fond of the young plants.
Sowing period
Intended location
Planting & care advice
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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).
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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.



















