Filipendula "Kahome" is an especially lovely Filipendula,  and it's a popular one, too,  because it's a dwarf Filipendula.  It seems that some folks just don't like tall varieties because they say they are prone to flopping over.  I have never had that problem with my other Filipendulas, "Queen of the Prairie" or "Meadowsweet."  I am partial to tall flowers, but there is always a place for shorter plants in the border and rock garden, especially this Filipendula, with its spires of hot pink blooms.  "Kahome" grows to about 12 inches in sun.  Zones 4-7.  Quarts. (Photo by Epibase, Wiki Commons.)

I  have grown Filipendula rubra "Queen of the Prairie" forever, it seems, because I like this native wildflower for its showy pink flowers that remind me of cotton candy.  I also like its common name, "Queen of the Prairie," and because it grows taller than most plants around it, it has every right to that majestic epithet.  In addition, Filipendula rubra  is 
long-lived and maintenance free.   Long live the Queen!  Sun or partial sun, 
Zones 3-8.  Quarts and up.

Filipendula ulmaria is also known as "Meadowsweet" and "Queen of the Meadow."  With
creamy white spires of Astilbe-like  flowers, it grows to about four feet tall, and  blooms for a long time in the early summer garden.  I have Filipendula ulmaria in sun and shade, but I think it thrives with that added drop of shade, so that's something to think about at planting time.  This clump-forming Meadowsweet increases in size each year, which is not a problem, as it fills in a space nicely, and it is easy enough to divide if you want to move some around or share it with friends.  Sun/part shade.  Zones 6-8.  Quarts.