Plant Names
Lactuca biennis
Tall Blue Lettuce
Laitue bisannuelle
Plant Characteristics
Couleur de floraison: Violet
Bloom Period: Jul - Sep
Hauteur max: 7,0 feet
Max Width: 2,0 feet
Light Condition:
More than 2 or 3 hours but less than 6 hours of direct sun a day
Less than 2 or 3 hours of direct sun a day
Soil conditions:
Tolerates medium soil condition
Tolère des conditions de sol humide
More than 2 or 3 hours but less than 6 hours of direct sun a day
Less than 2 or 3 hours of direct sun a day
Tolerates medium soil condition
Tolère des conditions de sol humide
Lifespan:
Bisannuel
des plantes qui mettront deux ans à fleurir, puis mourront
Gardener Experience:
Landscape Uses:
No landscape information available.
Ecological Benefits:
Butterfly host
Butterfly host
Tolerates:
Special Features and Considerations:
Seed and plant distribution status
No seeds available for this plant.
Nous acceptions les semences de cette plante
Faits intéressants
Tall Blue Lettuce has tall stems, blue-green leaves, and clusters of small pale blue flowers in summer. It grows naturally in woodland edges, roadsides, and disturbed areas. It prefers moist, fertile soils. Its tall, architectural form makes it suitable for naturalized gardens where a less formal appearance is desired. If you want plants from year-to-year, it's best to leave it self-seed. It can become tall and may need support in exposed locations.
Plant Location
Native to Ottawa region: Oui
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Maritime de l'Atlantique
- Taïga du Bouclier
- Plaines boréales
- Cordillière montagnarde
- Prairies
- Taïga de la Cordillière
- Bouclier boréal
- Maritime du Pacifique
- Plaines à forêts mixtes
Ecological Benefits
Butterflies Supported by Lactuca biennis
-
Apantesis virgo
Virgin tiger moth - Apanthèse vierge
Specialized Bees Supported by Lactuca biennis
No bee data available for this plant.
Complementary Plants
- No complementary plants found.
Substitute For Non-Native Plants
No substitute plant data available for this plant.
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Surface sow
- Sow anytime
- Stratification conditions: Can be sown in the spring
- Stratification duration: 0 days
Harvesting and Seed Sharing
- Harvest start month: October
- Harvesting indicator:
- Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
- Harvesting:
- Secouer dans un sac de papier
- Seed viability test:
- Pas de test requis avant le don
- Packaging measure: 1 rounded 1/8 teaspoon
- Seed storage:
- Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
- Secouer de temps à autre pour prévenir la moisissure
- Cultivar: No, you can donate without knowing the source as there are only straight species
- No harvesting video available at this time.