Top native bellflowers
11 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Western Harebell
Campanula petiolata
caterpillars
1
bees
3
flowers
21
-
Scouler's Harebell
Campanula scouleri
caterpillars
1
bees
2
flowers
18
-
Olympic Bellflower
Campanula piperi
caterpillars
1
bees
2
flowers
8
-
Intermediate Bellflower
Campanula intercedens
caterpillars
1
bees
1
flowers
21
-
Rough Harebell
Campanula scabrella
caterpillars
1
bees
1
flowers
14
-
Southern Harebell
Campanula divaricata
caterpillars
1
bees
1
flowers
12
-
Mountain Harebell
Campanula lasiocarpa
caterpillars
1
flowers
6
-
Parry's Northern Harebell
Campanula parryi
bees
1
flowers
15
-
Arctic Harebell
Campanula uniflora
bees
1
flowers
11
-
Alaskan Bellflower
Campanula alaskana
flowers
2
-
Castle Crags Harebell
Campanula shetleri