Gadenin日本語Get the app
Campanula spp.
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- How to Sow Campanula: Canterbury Bells From Seed, Sown This Year to Flower Next
- Campanula Care: Sun Without the Scorch, Sharp Drainage and Good Air
- Campanula Flowers: When Bellflowers Bloom, Why They Skip a Year, and Longer Displays
- Campanula Through the Year: A Season by Season Schedule for Bellflowers
- Campanula Pests and Diseases: Mildew, Rust, Crown Rot, Aphids and Slugs
- Propagating Campanula: Dividing Perennial Bellflowers and Saving Canterbury Bell Seed
Pests and diseases (6)
Problems recorded for this plant, most serious first.
Southern Blight
MajorDisease
The stem rots at soil level and white silky mycelium spreads over the crown and the surrounding soil surface. Brown sclerotia the size of rapeseed then form and the plant wilts and dies rapidly.
Fusarium Wilt and Damping-off
MajorDisease
Aphids
CommonPest
Small green or black insects cluster on shoot tips and leaf undersides, crinkling the leaves and stopping growth. The honeydew they excrete supports sooty mold that blackens the foliage.
Powdery Mildew
CommonDisease
White patches appear scattered on the upper leaf surface at first, then the whole leaf is coated in a white powder. Leaves later yellow, brown and die back, and reduced photosynthesis cuts growth and yield.
Rust
OccasionalDisease
Small raised orange-yellow to red-brown pustules form on both leaf surfaces, then rupture and release powdery spores. Heavy infection yellows the leaves and kills them early.
Slugs
OccasionalPest
Irregular holes are chewed in leaves and fruit with glistening slime trails nearby. By day they hide under pots and bricks or in dead leaves at the base of the plant.
