منذ أن زرعت البذرة، ينمو النبات المنزلي.

منذ أن means since when it introduces a whole clause.

• منذ can mean since or for, depending on context.
• أن helps introduce a verb clause after it.

So:

• منذ أمس = since yesterday
• منذ أن زرعت البذرة = since I planted the seed

Using أن is a very common way to connect منذ to a full action.

Because it refers to the earlier action that started the time period: the planting happened first.

In this sentence, the timeline is:

1. the seed was planted
2. after that, the plant is growing

So Arabic uses the past verb زرعت for the completed action that began the situation.

Because it describes an action that is happening now or is ongoing.

The verb ينمو can mean:

• grows
• is growing

In context with منذ أن, Arabic often uses the present tense for something that started in the past and continues now. English often prefers has been growing, but Arabic does not need a separate tense for that here.

It is built into the verb itself.

Arabic verbs often include the subject, so you do not always need a separate pronoun.

• زرعتُ = I planted

A separate أنا would only be added if you wanted emphasis:

• أنا زرعتُ البذرة = I planted the seed

So the sentence can naturally leave the pronoun out.

Yes—if the word is written without short vowels, زرعت can be ambiguous.

It could be read as:

• زَرَعْتُ = I planted
• زَرَعَتْ = she planted

In normal Arabic writing, short vowels are usually omitted, so context tells you which meaning is intended. Since the meaning has already been given to the learner, you know which reading is meant here.

Because Arabic often starts verbal sentences with the verb.

So this pattern is very normal:

• ينمو النبات المنزلي = the houseplant is growing

This is called verb–subject order.

You can also say:

• النبات المنزلي ينمو

That is also correct, but it gives slightly different emphasis. The version with the verb first is very natural in Arabic.

Because adjectives usually come after the noun in Arabic.

So:

• النبات المنزلي = literally the plant the-home/domestic

This is the normal Arabic order:

• noun first
• adjective second

The adjective also has to match the noun in features like definiteness.

Because Arabic adjectives usually match the noun in definiteness.

So if the noun is definite:

• النبات = the plant

then the adjective must also be definite:

• المنزلي = the domestic / home

That is why Arabic says:

• النبات المنزلي

not:

• النبات منزلي

in this kind of attributive phrase.

Because the sentence is referring to a specific seed: the seed that was planted.

Arabic often uses the definite article when the thing is identifiable from context. Here, it is not just any seed in general, but the particular seed involved in the situation.

So:

• البذرة = the seed

If the meaning were more general or indefinite, بذرة could appear in a different sentence.

It can mean either, depending on context.

The Arabic present tense is more flexible than the English simple present. So ينمو can be understood as:

• grows
• is growing

And in a sentence with منذ أن, English may even translate it more naturally as:

• has been growing

Arabic does not need a special separate form here to express that ongoing idea.

A fully vowelled version could be:

مُنْذُ أَنْ زَرَعْتُ البِذْرَةَ، يَنْمُو النَّبَاتُ المَنْزِلِيُّ.

A few useful details:

• زَرَعْتُ = I planted
• البِذْرَةَ has -a because it is the direct object
• النَّبَاتُ has -u because it is the subject of ينمو
• المَنْزِلِيُّ matches النباتُ as its adjective

In everyday written Arabic, these short vowels are usually omitted.

Yes.

منذ can express either:

• a starting point: since
• a duration: for

Examples:

• منذ أمس = since yesterday
• منذ سنة can mean for a year, depending on context

In this sentence, because منذ is followed by أن + past verb, the meaning is clearly since:

• منذ أن زرعت البذرة = since I planted the seed