The short answer to your question is no-there is NONE.
Different niches have different sandbox durations.
Some niches are very saturated and very competitive.
I am of course talking about Forex, personal finance, that kind of thing.
In those niches it takes a long time for your blog to see decent traffic.
I'm talking about at least over 200 visitors per day.
In other niches, especially very big ones that seem to have a lot of competitors but have even more end-users, you can basically get out of the gate at full speed.
It's as if you click the publish button and the next week you have a decent sized site with decent traffic.
It really all depends on your target niche.
With that said though, even if you are in the right niche, Google is still going to compare your content's value with your competitors.
So it's a good idea to study what your competitors are doing and compile what they're doing right and offer something different.
What I suggest is to focus on the emotional payoff of seeing your content. You need to do something that rarely gets done by many online publishers, which is to get into the head of your target viewer.
What would they expect when they type in a certain keyword into Google?
What kind of emotional or mental state would they expect after reading the content?
Focus on that and you should get more success with the materials you choose to publish.