Try a fertilizer that has a higher middle NPK number, like 10-30-10.
These are often sold under the names like "Bloom Booster"
The middle number is generally for increased bloom production, which for flowering annuals (like marigolds) and vegetables is a good thing. Always follow manufacturer's directions for mixing fertilizers - it's okay to use a weaker solution, but do notuse a stronger mix, for it can burn your plants and/or kill them.
Fertilizer should be applied before rain. Fertilizer should always be watered into the soil or it can cause burning to the grass or plants.
you can grow marigolds in interesting things such as gravel, shreaded newspaper, water, soil and fertilizer mix, and sand
No you can't it would upset their stomachs.
not a lot, especially if you're planning on eating it
The amount of fertilizer to apply per square foot in a vegetable garden depends on the type of vegetables being grown and the specific fertilizer being used. It is recommended to follow the instructions on the fertilizer packaging or consult with a gardening expert for guidance on the appropriate amount to apply.
Can I apply lawn fertilizer after rain/
so it will be healthy
It should be watered in and dried
You should do this the other way around ... mow it first then apply the fertilizer. Otherwise you are just putting all that fertilizer into the grass catcher of the mower.
No, fertilizer should almost always be good for grass as long as you don't apply too much. Many times starter fertilizer is actually weaker than regular fertilizer as they don't want to damage the seeds/young sprouts before they take hold.
calcium
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