Problem - healthy and strong marigolds but no flowers?

[fgmr]

I have a few marigold beds both in and out of my garden. However only a few of the plants are producing any flower buds.

Any advice on what the cause may be!

 

 

[IvorBiggun2]

Shade?

 

Sunlight is their best friend; without at least six hours of it, they're more likely to sulk than bloom. They're not greedy for nutrients, either. Over-fertilizing can lead to a lush green bush with few, if any, flowers. Stick to a low-nitrogen fertilizer, like a 5-10-5, to keep the blooms coming.

[connda]

10-30-20 fertilizer

[Negita43]

I use my marigolds for washing up - flowers would only get in the way😀