Tagetes patula

Super Hero Harmony

Item no.: W1955/C/D
  • Most uniform series in packs and pots
  • Earlier to flower
  • Compact plant habit
  • Clean; stable flower pattern
  • Looks gorgeous in mixed containers or as stand alone
  • Profit from 9 colors and 1 mix
Crop time
Spring: 7 - 8 weeks
Height
7 ″ / 18 cm
Exposure
Sun
Seed form
Raw Seed, Coated Seed, Detailed Seed
Uses
Landscape

Culture guide

Usage

Packs, Pots, Mixed Containers and Landscape

Sowing method

1 seed per plug

Germination

Optimum conditions for seedling development, beginning on the day of sowing until radicle emergence. Expect radicle emergence in 2-3 days

Growing on

4-5 weeks after sowing transplant 1 plant into 10 cm (4'') pots or packs. Transplant African Marigold plugs before they become root bound. Delays in transplanting may induce premature flowering.

Media

Plug Culture:
Begin with a saturated (5) media moisture level for the first 1-2 days and then reduce to wet (4) for the next 3-4 days. Thereafter, on day 6, once germination is complete with cotyledon expansion, reduce the media moisture to medium (2). Alternate between moisture levels wet (4) and medium (2). Allow the media to reach a moisture level medium (2) before re-saturating to wet (4).
Growing On:
Continue to alternate between moisture levels wet (4) and medium (2). Allow the media moisture to approach medium (2) before re-saturating to wet (4).

Temperature

Plug Culture:
72-75 °F (22-24 °C). On day 7, once cotyledons have expanded the temperature can be lowered to 68-70 °F (20-21 °C).
Growing On:
63-64 °F (17-18 °C) until plants are well established in the final container. Thereafter, temperatures may be lowered further to 59-63 °F (15-17 °C) nights and 64-68 °F (18-20 °C) days. Avoid lower temperatures since temperatures between 64-68 °F (18-20 °C) promote flower initiation. An ADT (average daily temperature) of 67 °F (19 °C) will give the fastest finished crop.

Fertilization

Plug Culture:
Maintain an EC of less than 0.75. Begin fertilizing early on day 7 feeding at 50-60 ppm N, using a calcium-based fertilizer (14-2-14 or 13-2-13).
Growing On:
Marigolds require a moderate feed program. Fertilize weekly with a complete calcium based fertilizer at 150-200 ppm N. Recommended fertilizers are (14-4-14; 15-5-15; and 17-5-17) under high light conditions. Keep ammonium levels low since too much ammonium will result in large leaves and can also damage the roots.


Stage I Starts with the radicle breaking through the testa. The roots are touching the medium. Ends with fully developed cotyledons.
Stage II Starts from fully developed cotyledons. Ends with the fully developed true leaf or true leaf pair.
Stage III Starts from the fully developed true leaf or true leaf pair and ends with 80% of the young plants being marketable.
Stage IV All young plants are ready for sale and in the process of being hardened off. This stage lasts about 7 days.

The cultural recommendations are based on results from trials conducted under Central European conditions. Different conditions in other parts of the world may lead to deviations in results achieved.

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