Ornamental· Tagetes erecta
Guide de culture du Marigold
Annual flower grown for bedding plants, cut flowers, and as an industrial source of lutein for poultry feed and dietary supplements. Also used as a companion plant for pest management.
Conditions de croissance
Exigences du sol
Type de sol et pH
Meilleurs types de sol : loam, sandy loam, well-drained
Plage de pH : 6 - 7.5 (optimal : 6.5)
Drainage : good
Besoins en nutriments (N-P-K)
Guide de plantation
Rendement et économie
Ravageurs et maladies courants
Ravageurs courants
- spider mites
- whiteflies
- slugs
- earwigs
Maladies courantes
- botrytis
- powdery mildew
- alternaria leaf spot
Utilisez la pour identifier les problèmes tôt et prévenir les pertes de récolte.
Conseils de culture
Marigold root exudates suppress nematodes — rotate or interplant with nematode-susceptible crops like tomatoes for biological pest management.
Deadhead spent flowers regularly to extend blooming; marigolds flower continuously from early summer until frost if properly maintained.
For lutein extraction (industrial use), harvest at full bloom and dry flowers rapidly; lutein content can reach 8-12 g/kg dry weight in African marigold.
Questions fréquentes
How long does Marigold take to grow?
Marigold typically takes 50 days from planting to harvest. Seeds germinate in about 5 days. The best planting season is spring.
What soil does Marigold need?
Marigold grows best in loam, sandy loam, well-drained soil with a pH of 6-7.5. Good drainage is required.
What temperature does Marigold need?
Marigold grows best at 18-30°C. Frost tolerance: none. Heat tolerance: high.
What is the expected yield for Marigold?
Marigold yields approximately 15,000 kg fresh flowers/hectare under good conditions. Multiple harvests per year are possible (2).
Plus de Ornamental
Termes agronomiques clés
Les concepts agricoles essentiels, expliqués simplement.
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