Also known as Bellflower · 1.1k gardener saves

Campanula: the varieties gardeners actually grow

Campanula, the genus most gardeners know as bellflower. We track 31 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.

31 varietiesZones 4–9Mostly full sun

The 12 most-saved Campanula varieties

Of 31 in the catalog — ordered by how many gardeners actually grow them.

Browse all 31 Campanula varieties →

How to grow Campanula

What the Campanula varieties in our catalog actually agree on — drawn from the care records of the 31 most-grown of them, not from a generic template.

The Campanula year

  • DivideMarch and September97% of varieties

    Divide clumps every 3-4 years in spring or fall to maintain vigor.

  • DeadheadMay–July87% of varieties

    Remove spent flowers regularly to encourage continuous blooming.

  • Spring CleanupFebruary55% of varieties

    Remove old, dead foliage before new growth begins in late winter.

  • PruneJuly and August48% of varieties

    Cut back spent flower stalks after the main bloom period to tidy the plant.

  • FertilizeMarch42% of varieties

    Apply a balanced slow-release fertilizer as new growth emerges.

  • Check for PestsApril–June35% of varieties

    Watch for slugs and snails, especially on new spring growth

Do

  • Deadhead spent flowers to encourage more blooms
  • Mulch to conserve moisture and regulate soil temperature
  • Water regularly to keep soil moist 🌱
  • Water consistently, especially during dry spells 🌱
  • Water regularly to keep soil moist but not soggy 🌱

Avoid

  • Avoid overwatering to prevent root rot ❌
  • Avoid overwatering, which can cause root rot ❌
  • Avoid overwatering, which can lead to root rot ❌
  • Don’t let soil dry out completely between watering

What goes wrong with Campanula

ProblemWhat you'll seeWhat to do
AphidsSticky residue on leaves, distorted growthUse neem oil or insecticidal soap
SlugsIrregular holes in leaves, slime trailsUse beer traps or diatomaceous earth around plants
Slugs and SnailsIrregular holes chewed in leaves and flowers, often with slime trails nearby.Use organic baits containing iron phosphate. Set beer traps. Hand-pick at night. Create barriers with crushed eggshells or diatomaceous earth.
Spider mitesFine webbing on foliageUse neem oil or insecticidal soap
Powdery MildewWhite powdery coating on leavesImprove air circulation and apply fungicide if needed
Root rotWilting, yellowing leaves, mushy rootsImprove drainage, reduce watering
Powdery mildewWhite powdery coating on leavesImprove air circulation and apply sulfur-based fungicide

Making more Campanula

Seed

  1. Sow seeds on moist soil surface in early spring.
  2. Keep soil consistently moist for 2-3 weeks until germination.
  3. Transplant seedlings once they are large enough to handle.

Division

  1. Divide mature clumps in early spring or fall.
  2. Replant divisions immediately into prepared soil, water thoroughly.

Campanula questions

How many types of Campanula are there?

The Sow catalog tracks 31 distinct Campanula varieties. The most popular — ranked by 1.1k real gardener saves — are shown first above.

What zones does Campanula grow in?

Across its varieties, Campanula covers USDA Zones 4–9. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.

When does Campanula bloom?

Most Campanula varieties bloom in mid-summer, early summer, late spring. Staggering early, mid, and late varieties extends the genus's season in one bed.

Which Campanula should I choose?

Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.

Keep exploring

Design with Campanula in your own yard

Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.

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