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Campanula

Campanula carpatica
Also known as: Carpathian Bellflower, Tussock Bellflower, Carpathian Harebell

Campanula is a flower in the Campanulaceae family. It grows best in full sun to part shade with medium moisture, and is listed for USDA zones 3-8. Plants reach maturity about 100–130 days after planting and sit about 6 inches apart.

Varieties

1 from True Leaf Market · sorted by days to maturity
  • ▸Clips Series - White (Pelleted)100–130 days

    Non-GMO; Container; Perennial

    2nd-year maturity. Campanula carpatica. White Clip Series Campanula Seeds. Non-GMO, perennial hybrid flower. Clips Series White seeds grow year-round campanulas in your home or garden for perennial perfumes. Often planted as annuals, campanula seeds are perennials that grow to be cool-hardy and thrive in a wide range of temperate North American climates. Clips Series White campanula seeds grow compact, yet durable 8-10 inch tall mounds of alpine white ideal for indoors, hanging baskets, or as a potted gift. Pelleted Seeds.

    View on True Leaf Market ↗
Family
Campanulaceae
Category
Flower
Form
Bush
Lifecycle
perennial
Zone
3-8
Height
0.6666666666666666–0.8333333333333333 ft
Spread
0.6666666666666666–1 ft
Sun
Full sun to part shade

Plant spacing

4 plants per square footSquare-foot planting diagram: a 1-foot square divided into a 2-by-2 grid holding 4 campanula plants spaced 6 inches apart.
4 plants per square foot

In a square-foot bed, space campanula about 6 in apart — that fits 4 plants in each 1-foot square (2×2). Wider rows or containers space the same.

Water
Medium

Plan your campanula planting

Add campanula to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.

Start your free plan →

At a glance

Days to harvest
100–130 days
From transplant or sow to first harvest
Harvest style
Harvest once
One main harvest
After harvest
Use within days
Quality eases off after peak
Frost tolerance
Hardy · to ~15°F
Lowest temperature the foliage usually survives
Germination
~60%
Typical minimum germination rate

Growing timeline

When to plant and harvest campanulaPlanting timeline for campanula, relative to last frost: start indoors from 12 weeks before last frost to 2 weeks before last frost; grow from 2 weeks before last frost to 12 weeks after last frost; harvest from 12 weeks after last frost to 17 weeks after last frost.Start indoorsGrowHarvestLast frostTransplant
Start campanula indoors ~10 weeks before transplanting 2 weeks before last frost; first harvest 12 weeks after last frost.
Seed to transplant
56-70 days
Outdoor planting
-14 to 0 days vs frost
Propagation
Seed
Schedule anchor
Last Frost

Care & troubleshooting

No curated care & troubleshooting advice for campanula yet. Our extension-sourced library currently focuses on common edible crops; we're expanding it over time.