hwadan ane deureogaji masipsio.

화단 means a flower bed or garden bed, usually a section of ground where flowers or ornamental plants are planted.

• 화 relates to flowers
• 단 here refers to a bed or raised plot

In everyday English, this sign would usually refer to a flower bed, not a whole park or garden.

안에 means inside or in the inside of.

It is made of:

• 안 = inside
• 에 = location/destination particle, often meaning in, at, or to

So 화단 안에 means inside the flower bed.

This makes the warning very specific: not just near the flower bed, but inside it.

Yes, it could.

• 화단에 들어가지 마십시오 = Please do not enter the flower bed
• 화단 안에 들어가지 마십시오 = Please do not go into the inside of the flower bed

The version with 안에 is a little more explicit. It emphasizes the idea of going into the flower bed area itself. On signs, Korean often uses this kind of wording for clarity.

들어가다 means to go in, to enter, or to go inside.

It is made up of:

• 들다 = to enter / go in
• 가다 = to go

As a combined verb, 들어가다 is very common and means to go into a place.

Examples:

• 집에 들어가다 = to go into the house
• 방에 들어가다 = to enter the room

Here, 화단 안에 들어가다 means to go into the flower bed.

That is because the sentence is using a negative prohibition pattern:

• verb stem + 지 마십시오 = please do not ...

So:

• dictionary form: 들어가다
• stem: 들어가-
• negative command form: 들어가지 마십시오

This does not mean the verb changed randomly. It is part of a grammar pattern:

• 가다 → 가지 마십시오 = please do not go
• 먹다 → 먹지 마십시오 = please do not eat
• 들어가다 → 들어가지 마십시오 = please do not enter

-지 마십시오 is a very formal and polite way to say please do not ...

It is commonly used:

• on signs
• in announcements
• in formal instructions
• when speaking very politely

So 들어가지 마십시오 means Please do not enter.

A few related forms:

• -지 마 = don’t ... (casual)
• -지 마세요 = please don’t ... (polite, common speech)
• -지 마십시오 = please do not ... (formal, official)

On a public sign, -지 마십시오 sounds very natural.

Yes. It is a formal negative command/request.

Even though it is translated with please, it is still grammatically a command form. On signs, this is normal and does not sound strange. In English, signs also often use commands, such as:

• Do not enter
• Keep off the grass
• No smoking

So 들어가지 마십시오 is polite, but still clearly gives an instruction.

들어가지 마십시오 is more formal and official than 들어가지 마세요.

Compare:

• 들어가지 마세요: polite, common in conversation
• 들어가지 마십시오: more formal, typical for notices and public signs

A sign at a park, museum, station, or public building often uses -십시오 style because it sounds official and authoritative.

The sentence follows normal Korean word order:

• 화단 안에 = inside the flower bed
• 들어가지 마십시오 = please do not enter

So Korean puts the place first, then the action.

A very literal breakdown would be:

• flower-bed inside-to
• enter-not please-do

Natural English reordering gives:

• Please do not enter the flower bed or
• Do not go inside the flower bed

Here, 에 is mainly marking the destination of movement.

With movement verbs like 가다, 오다, and 들어가다, 에 often means to or into.

So in 화단 안에 들어가다, the idea is:

• go into the inside of the flower bed

This is different from a pure location sentence like:

• 화단 안에 꽃이 있습니다 = There are flowers inside the flower bed

There, 에 marks where something exists.
Here, it marks where someone would move into.

A natural pronunciation is close to:

화다나네 드러가지 마십씨오

A few sound changes happen in normal speech:

• 화단 안에 sounds like 화다나네
• 들어가지 sounds close to 드러가지
• 마십시오 is commonly pronounced 마십씨오

You do not need to memorize the sound changes all at once, but it is helpful to know that spoken Korean often sounds smoother than the spelling suggests.

Not in this context. On a sign, it sounds normal, polite, and standard.

In conversation, using -십시오 directly to one person could sound quite formal or stiff, depending on the situation. But for public notices, warnings, and instructions, it is very common and appropriate.

So on a sign, 화단 안에 들어가지 마십시오 sounds like a standard public warning, not rude.

Not exactly, though they are similar in function.

• 화단 안에 들어가지 마십시오 = Please do not enter the flower bed
• 출입 금지 = No entry / Entry prohibited

출입 금지 is shorter and more blunt, like an official label.
들어가지 마십시오 is a full sentence and sounds a little softer because it uses a polite command form.

Both can appear on signs, but 출입 금지 is more like a fixed notice, while -지 마십시오 is a direct instruction.