Campanula, Adriatic Bellflower 'Dickson's Gold'

Love this plant. Has done well in zone 9. This year it needs a little help anyone know what kind of fertilizer to use?

Armitage says this is hardy in Z5-7 in eastern N. America, and I suspect this is conservative. Like most bellflowers, it hates hot humid ...Read Moresummer climates, especially with frequent night temperatures over 70F, like that of the eastern US south of Z7.

Main bloom in May-June, sometimes may repeat sporadically later.

This cultivar can spread aggressively under optimal growing conditions and may need regular division. (It is, however, less aggressive than the popular C. portenschlagiana.) Requires good drainage. Does not like to be overshadowed by larger plants.

Easily propagated by division, and comes true from seed.

I have quite a few Campanula garganicas in my garden, mostly along two paths. They take sun or shade quite nicely. The ones in sun seem...Read More to do better and I had to cut them back after they bloomed this year to tidy them up. They also can be divided. The best thing is that they are evergreen in my climate and look nice year 'round.

I love this variety of campanula -- the chartreuse foliage and periwinkle star-shaped flowers are just beautiful together. This has done...Read More well for me in zone 4 with no protection; I just checked the tag on one I purchased recently and it did say hardy to zone 4. At any rate, a very nice border or rock garden perennial.
Update 2012 - starting to fill out and bloom quite a bit more this year, which is actually the third summer. These seem to appreciate more shade than I thought they would.