Die deklaag lê op die potgrond.

A word-by-word breakdown is:

• Die = the
• deklaag = covering layer / mulch / top layer
• lê = lies / is lying / is situated
• op = on
• die = the
• potgrond = potting soil

So the structure is:

• Die deklaag = the subject
• lê = the verb
• op die potgrond = a prepositional phrase telling you where it is

Because Afrikaans uses die as the definite article for all nouns in the singular and plural.

Unlike English, Afrikaans does not change the article for gender, and unlike some other languages, it does not have different forms like the based on case.

So:

• die deklaag = the mulch / the covering layer
• die potgrond = the potting soil

You will see die very often because it works for many situations where English also uses the.

lê means to lie or to be lying. In Afrikaans, it is often used for something that is in a horizontal position or resting on a surface.

Here, deklaag is understood as a layer spread over the soil, so lê fits naturally.

Compare:

• Die boek lê op die tafel. = The book is lying on the table.
• Die deklaag lê op die potgrond. = The mulch lies on the potting soil.

Afrikaans often uses position verbs such as:

• lê = lie
• staan = stand
• sit = sit

English often just uses is, but Afrikaans may prefer a more specific verb.

No. Afrikaans verbs usually do not change for person or number in the present tense.

So you get:

• Ek lê
• Jy lê
• Hy lê
• Ons lê
• Hulle lê

That is much simpler than English, where you get I lie but it lies.

In this sentence, lê stays the same even though the subject is die deklaag.

deklaag is a compound noun, which is very common in Afrikaans.

It is made from:

• dek = cover
• laag = layer

Together, deklaag literally suggests a cover layer.

Afrikaans often writes compound nouns as one word, just like German and sometimes like Dutch. English may write similar ideas as one word, two words, or with a hyphen, but Afrikaans very often prefers one solid word.

potgrond is also a compound noun:

• pot = pot
• grond = soil / ground

So literally it is pot soil, which in natural English is usually potting soil.

This does not necessarily mean just any soil that happens to be in a pot. In many contexts it refers to the prepared soil mixture used for plants in pots.

This is the normal main-clause word order in Afrikaans:

• Subject
  • verb
    • rest

So:

• Die deklaag = subject
• lê = verb
• op die potgrond = where it lies

That gives the straightforward pattern:

Die deklaag lê op die potgrond.

Afrikaans is a V2 language in main clauses, which means the finite verb normally comes second. In this sentence, the subject is first, so the verb comes immediately after it.

Yes. That is grammatically possible.

When you move op die potgrond to the front for emphasis, the verb still stays in second position:

• Op die potgrond lê die deklaag.

This might sound a bit more focused on where the mulch is.

Notice that you do not keep the subject before the verb after fronting. Afrikaans requires the verb to remain second:

• Correct: Op die potgrond lê die deklaag.
• Not correct: Op die potgrond die deklaag lê.

The ê in lê shows a long vowel sound. The accent mark helps distinguish pronunciation and sometimes meaning.

A rough guide:

• lê sounds somewhat like lay in English, though not exactly the same

The accent is part of the normal spelling here, so you should write lê, not le.

Afrikaans uses accents less heavily than some languages, but when they appear in ordinary spelling like this, they matter.

A rough English-friendly pronunciation is:

duh DEK-lahkh lay op duh POT-khront

A few notes:

• die in Afrikaans is usually pronounced more like duh, not like English die
• g in deklaag and potgrond is a throaty sound, not an English g
• lê has a long vowel

This is only an approximation, but it helps avoid reading everything with English sounds.

Usually op means on, onto, or on top of, depending on context.

In this sentence, op die potgrond means on the potting soil.

As in English, the exact translation depends on the situation:

• Die boek is op die tafel. = The book is on the table.
• Hy klim op die muur. = He climbs onto the wall.

So here, op is the natural preposition for a layer resting on soil.

The main things worth noticing are:

• die is the general definite article
• Afrikaans uses many compound nouns: deklaag, potgrond
• lê is a position verb
• the sentence follows normal subject–verb–rest order
• the verb does not change form for the subject

So even though the sentence is short, it shows several very typical Afrikaans patterns.