Grow Centaurea montana, also known as Perennial Cornflower or Mountain Bluet, a hardy perennial prized for its striking blue, fringed flowers and silvery-green foliage. It is a beautiful choice for cottage gardens, perennial borders, pollinator gardens, and naturalized plantings.
Why Choose These Seeds
- Produces vivid blue, fringed cornflower-style blooms
- Hardy perennial that can return year after year
- Excellent for cottage gardens and perennial borders
- Attracts bees, butterflies, and other pollinators
- Performs well in sunny to partially shaded garden areas
At a Glance
| Plant |
Perennial Cornflower – Centaurea montana
|
| Order contents |
20 seeds |
| Plant type |
Hardy flowering perennial |
| Best for |
Cottage gardens, borders, pollinator gardens, naturalized areas |
| Light |
Full sun to partial shade |
| Mature height |
Approximately 18–24 inches |
| Flower color |
Blue |
| Success starts with |
Good drainage, moderate moisture, and bright light |
How to Start
- Fill seed trays or pots with a clean, well-draining seed-starting mix.
-
Sow seeds about 1/4 inch deep and cover lightly with soil.
- Keep the growing medium evenly moist but not waterlogged.
-
Maintain temperatures around 65–70°F (18–21°C).
-
Germination commonly occurs in approximately 2–4 weeks under suitable conditions.
- Once seedlings are established, transplant them carefully into individual pots or garden beds.
- Provide good spacing and airflow as the plants mature.
Set expectations: Germination and plant growth may vary depending on seed freshness, temperature, moisture, and local conditions. Seed-grown plants may also show slight natural variation in flower shade, size, and growth habit.
Frequently Asked Questions
What exactly will I receive?
One order contains 20 Centaurea montana Cornflower seeds.
How long do Centaurea montana seeds take to germinate?
Seeds commonly germinate in approximately 2–4 weeks under suitable temperature and moisture conditions.
Do Centaurea montana seeds need cold stratification?
Cold stratification is generally not essential, though a short cool period may sometimes help improve germination consistency.
Is Centaurea montana a perennial?
Yes. Unlike annual Bachelor Buttons, Centaurea montana is a hardy perennial that can return for multiple seasons in suitable climates.
Does Centaurea montana attract pollinators?
Yes. Its flowers are attractive to bees, butterflies, and other beneficial pollinating insects.
