La fontana è al centro del giardino.

Because Italian usually uses the definite article more often than English does. La fontana means the fountain.

Here, the sentence is talking about a specific fountain, so la is needed.
Also, fontana is a feminine singular noun, so it takes la.

• la fontana = the fountain
• una fontana = a fountain

In Italian, every noun has a grammatical gender, usually masculine or feminine. Fontana is a feminine noun, which is why it uses la.

A common clue is the ending:

• nouns ending in -a are often feminine
• nouns ending in -o are often masculine

So:

• la fontana
• il giardino

This is grammatical gender, not biological gender.

È means is. It is the third-person singular form of essere = to be.

So:

• La fontana è... = The fountain is...

It is used just like English is in this sentence.

The accent is important because è and e are different words in Italian:

• è = is
• e = and

So in this sentence, it must be è, because the meaning is is, not and.

Al centro means in the center or at the center.

It is made of:

• a = at / to
• il = the
• al = a + il

So literally it is something like at the center.

In natural English, it is often translated as in the center.

Al centro is the normal idiomatic way to say in the middle / at the center of something in many cases.

• al centro del giardino = at/in the center of the garden

Nel centro is possible in some contexts, but it often suggests inside the central area rather than the general idea of being centrally located.

For this sentence, al centro del giardino is the most natural choice.

Del means of the.

It is a contraction of:

• di = of
• il = the
• del = di + il

So:

• del giardino = of the garden

Italian often combines certain prepositions with definite articles into one word. These are called contracted prepositions.

In this sentence:

• a + il = al
• di + il = del

So instead of saying:

• a il centro
• di il giardino

Italian says:

• al centro
• del giardino

This is standard Italian grammar.

Because giardino is a masculine singular noun. Masculine singular nouns commonly take il.

So:

• il giardino = the garden

When di combines with il, you get del:

• del giardino = of the garden

The word order is very similar to English:

• La fontana = subject
• è = verb
• al centro del giardino = location phrase

So the structure is:

Subject + verb + place

Italian word order is often flexible, but this is the most neutral and natural order here.

Yes. La fontana si trova al centro del giardino is also correct and natural.

It means something like:

• The fountain is located in the center of the garden

Compared with La fontana è al centro del giardino, it sounds a little more explicit or descriptive, but both are perfectly fine.

It is pronounced roughly like fon-TA-na.

A few helpful notes:

• the stress is on ta
• fo sounds like fo in for without the English r
• na is a clear nah

So: fon-TA-na

A rough pronunciation guide is:

lah fon-TAH-nah eh al CHEN-troh del jar-DEE-noh

A few details:

• la = lah
• fontana = fon-TA-na
• è = eh
• centro = CHEN-tro
• giardino = jar-DEE-no

The gi in giardino sounds like the j in jam.

Usually, no.

Italian normally needs the articles here:

• la fontana
• del giardino

If you remove them, the sentence sounds unnatural or incorrect in standard Italian.

English often drops articles where Italian keeps them, so this is something English speakers need to get used to.

Not exactly.

• centro = center
• mezzo = middle / midst / half, depending on context

In this sentence, centro is the right word because it refers to the central point of the garden.

So:

• al centro del giardino = at the center of the garden

That is more precise and natural than using mezzo here.