Consolida ambigua - (L.)P.W.Ball.&Heyw.
Common Name Larkspur, Doubtful knight's-spur, Rocket Larkspur
Family Ranunculaceae
USDA hardiness Coming soon
Known Hazards The whole plant is poisonous[207].
Habitats Corn fields[244].
Range Europe - Mediterranean.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Moist Soil Semi-shade Full sun

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Bloom Color: Blue, Pink, Purple, Red, White. Main Bloom Time: Early summer, Late summer, Late spring, Mid summer. Form: Upright or erect.

Consolida ambigua Larkspur, Doubtful knight

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 94.
Consolida ambigua Larkspur, Doubtful knight Consolida regalis
Physical Characteristics
 icon of manicon of flower
Consolida ambigua is a ANNUAL growing to 1 m (3ft 3in) at a fast rate. It is in flower from Jul to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees, lepidoptera.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

C. ajacis.

 Cultivated Beds;
Edible Uses
Edible Parts: Oil.
Edible Uses: Oil.

None known
Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Parasiticide;  Parasiticide;  Vulnerary.

Larkspur formerly had a reputation for its ability to consolidate and heal wounds[244], whilst the juice from the leaves is considered to be a remedy for piles and an infusion of the flowers and leaves has been used as a remedy for colicky children[244]. However, the whole plant is very poisonous and it should not be used internally without the guidance of an expert. Externally, it can be used as a parasiticide[207]. A tincture of the seed is applied externally to kill lice in the hair[240].


Other Uses
Insecticide;  Oil;  Parasiticide;  Parasiticide.

The seed is insecticidal[240]. A tincture made from the seed is said to be effective against hair nits[244]. There is uncertainty as to whether the insecticidal effect is due to the oil or alkaloids in the seed[240]. The seed contains 39% of a fixed oil, though the report does not say if this is ever exploited[240].
Cultivation details
Landscape Uses:Border, Container, Foundation, Massing, Woodland garden. An easily grown plant, it prefers a sunny position in a well-drained soil. This species is called Consolida ajacis by some botanists[274]. Larkspur is a greedy plant, inhibiting the growth of nearby plants, especially legumes[54]. Plants resent root disturbance and should not be transplanted[200]. Special Features:Attractive foliage, Naturalizing, Suitable for cut flowers, Suitable for dried flowers.
Seed - sow in succession from spring to early summer in situ. Germinates in 2 - 3 weeks[200]. Seedlings transplant badly[200]. An autumn sowing can succeed in areas with mild winters[200]. The seed has a short viability and should not be stored for more than one season[200].
Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Consolida regalisLarkspur, Royal knight's-spur03


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Botanical References
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Readers comment
Lawler Barnes   Sat Oct 28 2006

Nature Abhors a Garden Larkspur is the subject of the 11/05/06 posint

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Subject : Consolida ambigua  

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