Anchusa azurea
Common Name(s):
- Phonetic Spelling
- an-CUE-sah ah-ZUR-ee-ah
- Description
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Anchusa azurea, or Alkanet, is a flowering, bristly, short-lived, perennial. In its native Europe, it is often found on the sides of arable fields, waste places, roadsides and stony hills. The small, bright blue flowers of Alkanet are borne in loose clusters or cymes from late spring to mid-summer.
The plant will grow best in full sun, but you should provide some afternoon shade during the hot summer months, and it tolerates heavy clay soil. It prefers moist, well-drained, soil, but established plants will tolerate drought. Some taller plants may need to be staked for support. This plant is not drought tolerant and mulching around the plant base will aid in retaining moisture. The mulch will also provide protection for the plant after the bloom season has ended. Cut back the plants at the end of the season and assure that the roots (but not the crown) are protected by mulch. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.
This plant will self-seed and has a reputation for being weedy. Under the right conditions such as deep, rich, fertile soil, it can become invasive. Self-seeding, if not dealt with, can also lead to an invasion of new plants. Deadheading will help to eliminate this tendency as well as prolong the bloom period.
Insects, Diseases and Other Plant Problems:
No known disease or pest issues, however, crown rot is an issue for this plant.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- 'Loddon Royalist'
Purple-blue flowers
- 'Loddon Royalist'
- 'Loddon Royalist'
- Tags:
- Cultivars / Varieties:
-
- 'Loddon Royalist'
Purple-blue flowers
- 'Loddon Royalist'
- 'Loddon Royalist'
- Tags:
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Attributes:
- Genus:
- Anchusa
- Species:
- azurea
- Family:
- Boraginaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Root Cutting
- Seed
- Country Or Region Of Origin:
- East Central Europe, Caucasus to Mediterranean and Pakistan.
- Distribution:
- Western Canada and United States, North Central United States
- Wildlife Value:
- Noted for attracting wildlife.
- Particularly Resistant To (Insects/Diseases/Other Problems):
- drought
- Edibility:
- The flowers can be eaten raw and make a decorative addition to the salad bowl, or used as a garnish.
- Dimensions:
- Height: 3 ft. 0 in. - 5 ft. 0 in.
- Width: 1 ft. 0 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Perennial
- Habit/Form:
- Climbing
- Erect
- Spreading
- Growth Rate:
- Rapid
- Maintenance:
- Low
- Texture:
- Coarse
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Occasionally Wet
- Available Space To Plant:
- 12 inches-3 feet
- 3 feet-6 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
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Fruit:
- Display/Harvest Time:
- Fall
- Summer
- Fruit Description:
- Seeds ripen from July to September
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Flowers:
- Flower Color:
- Blue
- Flower Inflorescence:
- Cyme
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Tubular
- Flower Size:
- < 1 inch
- Flower Description:
- Bright, violet, flowers bloom from June to August.
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Leaves:
- Leaf Color:
- Green
- Leaf Feel:
- Rough
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Elliptical
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- Yes
- Leaf Length:
- 3-6 inches
- Leaf Description:
- Straight, lance-shaped, leaves.
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Slope/Bank
- Walkways
- Landscape Theme:
- Cutting Garden
- Design Feature:
- Accent
- Border
- Small groups
- Specimen
- Attracts:
- Bees
- Resistance To Challenges:
- Compaction
- Poor Soil