I put out a ton of seed this year which included marigolds. I now have the tallest and healthiest marigolds I have ever seen, but there are no flowers. None at all. I have a least 100 seedlings, healthy and all, and no flowers.
No gardening experience whatsoever here :-)
....but you might check out the answers here:
No Blooms or Faded Blooms Due to Temperature
Lack of Blooms Due to Excessive Heat
High summer heat may slow, or even stop, blooming on marigolds. Once temperatures moderate, affected plants will begin to produce blossoms again. Triploid hybrids are somewhat resistant to heat problems. Two to three inches of organic mulch lowers the soil temperature and delays the effects of the heat of summer.
For more possible reasons go to: http://blogs.chron.com/lazygardener ... /hold_why_isnt_my_______bloomin.html
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