What is the best way to create a blended blur design like the below image?

[Rebekah5F99]

I'm trying to recreate a design for a client which features a merged or blended blur like the image attached, does anyone know what would be the best way of doing this? Would it be easier using Photoshop?

Any help would be appreciated, thank you!

[Monika Gause]

You could try freeform gradients.

 

[Rebekah5F99]

That worked, thank you so much!

[Monika Gause]

Glad you could solve it.