All God said was "let the land produce vegetation".
And what happened after that?
”Then God said, “Let the earth sprout vegetation, plants yielding seed, and fruit trees on the earth bearing fruit after their kind with seed in them”;
and it was so. The earth brought forth vegetation, plants yielding seed after their kind, and trees bearing fruit with seed in them, after their kind; and God saw that it was good.“
Genesis 1:11-12 NASB1995
When does it say this happened?
”There was evening and there was morning, a third day.“
Genesis 1:13 NASB1995
So God said more than just “let the ground bring forth vegetation”. He also said that the earth brought forth plants yielding seeds and trees bearing fruit. So apparently He gave us more information than what you’re claiming here.
What about the animals; all babies that grew up?
Do you really think God created baby animals? Were Adam & Eve also babies? Because the scriptures say that Adam & Eve were both created on the sixth day.
”Then God said, “Let Us make man in Our image, according to Our likeness; and let them rule over the fish of the sea and over the birds of the sky and over the cattle and over all the earth, and over every creeping thing that creeps on the earth.” God created man in His own image, in the image of God He created him; male and female He created them. God blessed them; and God said to them, “Be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea and over the birds of the sky and over every living thing that moves on the earth.” Then God said, “Behold, I have given you every plant yielding seed that is on the surface of all the earth, and every tree which has fruit yielding seed; it shall be food for you; and to every beast of the earth and to every bird of the sky and to every thing that moves on the earth which has life, I have given every green plant for food”; and it was so. God saw all that He had made, and behold, it was very good. And there was evening and there was morning, the sixth day.“
Genesis 1:26-31 NASB1995
The scriptures also say that Adam named all the animals before Eve was created.
”Out of the ground the Lord God formed every beast of the field and every bird of the sky, and brought them to the man to see what he would call them; and whatever the man called a living creature, that was its name. The man gave names to all the cattle, and to the birds of the sky, and to every beast of the field, but for Adam there was not found a helper suitable for him.“
Genesis 2:19-20 NASB1995
”So the Lord God caused a deep sleep to fall upon the man, and he slept; then He took one of his ribs and closed up the flesh at that place. The Lord God fashioned into a woman the rib which He had taken from the man, and brought her to the man.“
Genesis 2:21-22 NASB1995
If Adam & Eve were made in the same day and Adam named all of the animals before Eve was created then he probably wasn’t a baby.
Did he make frogspawn and wait for that to develop into frogs?
From what I’m seeing He made everything as adults so they were able to care for themselves. I guess he could’ve made frog eggs because they pretty much care for themselves as long as their environment is adequate but I don’t see the point of this question.
Did he create eggs and wait for them to hatch?
Well we know He didn’t do that for the birds according to Genesis 2:19-20 since Adam named them. Unless you think God brought all the eggs to Adam and he named all the eggs.
Did he create 1 self pollinating plant and then let it get on with it?
See? No information at all.
I already answered this above when I quoted Genesis 1:11-12.