Learn Hardcore Spanish (Spain): El huerto comunitario necesita tierra fresca.

In Spanish most descriptive adjectives come after the noun they modify. comunitario classifies the type of huerto, so it naturally follows. Placing it before (e.g. comunitario huerto) would sound odd or overly poetic. There are a few adjectives (like grande, pobre, bueno) that sometimes appear before for emphasis or style, but comunitario is not one of those.

Why is there no article before tierra fresca?

Here tierra is an uncountable noun meaning “soil” in a general sense. After verbs like necesitar, Spanish often omits the article when talking about an unspecified quantity:
• Necesita agua. (“It needs water.”)
• Necesita tierra fresca. (“It needs fresh soil.”)
If you wanted to refer to a specific batch of soil, you could say necesita la tierra fresca or necesita algo de tierra fresca.

What’s the difference between tierra and suelo?

Both can translate as “ground” or “earth,” but:
• tierra is used for gardening soil, potting mix, or farmland.
• suelo refers to the ground you walk on, the floor, or the surface beneath your feet.
So for a garden bed you always use tierra, not suelo.