Seasonal categorization of flowering annuals
Flowering annuals are categorized by their climatic adaptability and photoperiod requirements.
Major seasonal groups include:
- Winter season flowers (Rabi): Marigold, petunia, pansy, dahlia, carnation, and calendula sown during September and October in mild winter regions.
- Summer and rainy season flowers (Kharif/Zaid): Zinnia, gomphrena, balsam, portulaca, cosmos, and gaillardia capable of tolerating higher temperatures and monsoon showers.
- Commercial loose flowers: African marigold (Tagetes erecta) and French marigold (Tagetes patula) grown year-round for festive garland demand.
Nursery raising, tray sowing and potting media
Delicate flower seeds require sterile, moisture-retentive growing media for reliable germination.
Best nursery practices include:
- Use pro-trays (98 or 104 cavities) filled with a sterilized mixture of coco peat, vermiculite, and perlite in a 3:1:1 ratio.
- Sow seeds at a depth equal to two to three times their diameter; press very fine seeds lightly onto the surface without deep burial.
- Maintain uniform moisture using a fine mist sprayer and protect nursery beds from direct scorching sun with 50% green shade net.
Transplanting care and market harvesting
Seedlings are hardened off and transplanted into prepared beds when they develop four to six true leaves (typically 25 to 35 days after sowing). Harvest loose flowers during cool morning or late evening hours to retain petal moisture and extend post-harvest shelf life during transport to flower mandis.
Official source
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National Horticulture Board (NHB) ↗Related on KisanPe
Common questions
What is the best growing medium for germinating flower seeds?
A fine, well-aerated sterile mix of coco peat, vermicompost, and perlite provides optimal moisture retention and root aeration.
When should marigold seeds be sown for festive autumn harvest?
Sow marigold seeds in nursery trays during late July to August for harvesting loose flowers during October and November festive markets.
How deep should small flower seeds be sown?
Very tiny seeds should be sown shallowly or lightly pressed into the surface and dusted with a thin layer of coco peat, as many require light to germinate.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
More Seeds, Crops & Cultivation guides
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