Why Is My Philadelphus Not Flowering?

Many people love the look of a beautiful flowering tree in their yard. When they plant one, they typically assume it will grow and bloom just like any other type of tree. But when it doesn’t produce flowers, many are left wondering why their philadelphus is not flowering? Let’s find out…

Why Is My Philadelphus Not Flowering?

The most likely reason why your philadelphus is not flowering is due to it being pruned at the incorrect time of year. You see, pruning too early often means flowering stems are accidentally removed.

There’s also a chance that your philadelphus is not getting the amount of sunlight it enjoys. You see, philadelphus enjoy full sun, so if your tree is not receiving as much as it desires, you can expect a delay in flowering.

Finally, be sure to check the soil where your philadelphus has been planted. If there is too low of an organic content or soil acidity, then this will also affect when and how flowers grow on Philadelphus.

There are a few things you can do to increase the chance of your philadelphus flowering, including pruning at the right time of year (fall), ensuring it is receiving plenty of sunlight, and testing for soil acidity.

You will have to wait until next year to see your philadelphus bloom again. If you prune during the right time of year, then flowering stems should still be present and will produce flowers for you! If done correctly, this tree can actually flower all summer long – providing a beautiful display in your yard!

How Can I Encourage My Philadelphus to Flower?

Start by pruning your philadelphus during the right time of year. Prune after the last bloom to ensure flowering stems are present for the next bloom.

Make sure your philadelphus has plenty of sunlight during the day, as this is essential for flower production! This tree needs full sun to flourish and produce beautiful flowers all season long.

Next, make sure that there is organic content within the soil where you have planted your philadelphus to help encourage flowering. You can easily check this by using a soil tester to see the acidity levels of your philadelphus’s soil. If there is too low an organic content, then flowering will be delayed.

Philadelphus will not flower without all three things – plenty of sunlight, enough organic content within the soil, and pruning at the right time! If you have been doing all three of these things correctly, then your philadelphus bloom should be right around the corner!

It’s best to wait until next year before doing any pruning. Hopefully, your philadelphus will bloom next year, and then you can prune afterward to leave young shoots for the future.

Why Is My Mock Orange Growing but Not Flowering?

Pruning your mock orange at the wrong time of year can lead to flowering stems being removed. Make sure you prune in fall after all flowers have died back! You need enough flowering stems for your mock orange to produce flowers.

As your mock orange is still growing, it’s unlikely for the reason to be due to lack of sunlight or poor soil quality. Mock oranges actually grow well in partial sunlight, which is why they are often used as landscaping plants.


In conclusion, there are a few reasons why your philadelphus may not be flowering. If the tree has been pruned at the incorrect time of year, if it is getting too much or too little sunlight, and finally – if there is an issue with soil acidity – this will all affect when flowers bloom on Philadelphus trees.

You can encourage them to flower by pruning during the correct time of year, ensuring it receives enough sunlight and testing for soil acidity.

Hopefully, your philadelphus will begin blooming next summer! Thanks again for reading my blog post about this wonderful plant. I hope you enjoyed learning more on this topic today.

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