Is it grammatically correct to say planting time?

"Planting time" is grammatically correct, but it's a bit informal.

Here's a breakdown:

Grammatically Correct: Yes, "planting time" is a noun phrase that functions as a subject or object in a sentence.

Formal vs. Informal:

* Formal: "Planting season" or "the time for planting" would be more formal alternatives.

* Informal: "Planting time" is commonly used in casual conversation or writing.

Example:

* Formal: "The planting season for tomatoes is in the spring."

* Informal: "It's planting time for tomatoes!"

Ultimately, the best choice depends on the context and desired tone.