Obecnie roślina rośnie.

Obecnie means currently, at present, or nowadays, depending on context.

In this sentence, it means something like currently / at the moment / at present.

A useful nuance:

• obecnie often sounds a bit more formal or written
• in casual speech, Polish speakers very often use teraz for now

So:

• Obecnie roślina rośnie. = slightly more formal
• Teraz roślina rośnie. = more everyday

Roślina is the subject of the sentence, so it is in the nominative case.

The basic dictionary form of the noun is:

• roślina = plant

Because it is the thing doing the action (growing), Polish uses the nominative:

• roślina rośnie = the plant is growing

Yes. Roślina is a feminine noun.

A very common clue is the ending -a, which often marks feminine nouns in Polish.

That matters because adjectives, past-tense verbs, and some other words will agree with it. For example:

• mała roślina = a small plant
• zielona roślina = a green plant

Polish does not have articles like a, an, and the.

So roślina can mean:

• a plant
• the plant

Which one is meant depends on the context.

That is very different from English, so it is a very common thing for learners to notice.

Rośnie is:

• 3rd person
• singular
• present tense

It comes from the verb rosnąć = to grow

So:

• ja rosnę = I grow / I am growing
• ty rośniesz = you grow / are growing
• on/ona/ono rośnie = he/she/it grows / is growing

Here, roślina is singular, so Polish uses rośnie.

In Polish, the present tense often covers both ideas that English separates into:

• grows
• is growing

So:

• roślina rośnie

can mean:

• the plant grows
• the plant is growing

The adverb obecnie helps make it clear that this is about the current situation, so English often translates it as is growing.

Polish does not need a separate auxiliary verb like is here.

The infinitive is rosnąć = to grow.

The present-tense forms do not all look exactly like the infinitive. This is normal in Polish. Many verbs change their stem a little when they are conjugated.

For this verb:

• rosnąć = infinitive
• rosnę = I grow
• rośniesz = you grow
• rośnie = he/she/it grows
• rosną = they grow

So the change from rosną- to rośni-/rośn- in some forms is just part of the verb’s conjugation pattern. It is best learned as a full set of forms rather than trying to force everything to look like the infinitive.

Yes, rosnąć is an imperfective verb.

That makes sense here because the sentence describes an ongoing process:

• the plant is in the process of growing

Imperfective verbs are commonly used for:

• ongoing actions
• repeated actions
• general processes

A perfective verb would not normally be used here to describe the action as simply ongoing right now.

A rough English-friendly guide is:

• obecnie ≈ oh-BETS-nye
• roślina ≈ rosh-LEE-na
• rośnie ≈ ROSH-nye

A few important sound notes:

• ś is a soft sound, softer than English sh
• ni before a vowel often gives a ny sound
• Polish stress is usually on the second-to-last syllable

So the stress is:

• o-BEC-nie
• ro-ŚLI-na
• ROŚ-nie

Yes. Polish word order is more flexible than English word order.

The sentence:

• Obecnie roślina rośnie.

is natural and neutral.

But you could also say:

• Roślina obecnie rośnie.
• Roślina rośnie obecnie.

These alternatives are possible, but they may shift the focus or sound slightly less neutral depending on context.

Very roughly:

• Obecnie roślina rośnie. → emphasis on currently
• Roślina obecnie rośnie. → emphasis a bit more on the plant
• Roślina rośnie obecnie. → possible, but often less natural unless the context supports that focus

Yes.

Polish present tense often corresponds to both:

• English simple present
• English present continuous

So:

• Roślina rośnie.

could mean:

• The plant grows
• The plant is growing

In this sentence, obecnie strongly pushes the meaning toward:

• The plant is growing currently / at present

So context tells you which English translation fits best.

Usually more like currently or at present than the very immediate right now.

So obecnie can describe the present situation in a slightly broader sense, not necessarily this exact second.

If you want a more everyday, immediate right now, Polish often uses:

• teraz

So:

• Obecnie roślina rośnie. = Currently / At present, the plant is growing.
• Teraz roślina rośnie. = Now the plant is growing.

Both are possible, but obecnie is often a bit more formal or detached in tone.