Larkspur

Consolida ajacis

Dogs: Severe Cats: Severe

Veterinary Emergency

Veterinary emergency. Larkspur causes neuromuscular blockade. Young plants and seeds are most toxic. Immediate vet care required.

ASPCA Poison Control: (888) 426-4435 | Pet Poison Helpline: (855) 764-7661

Plant Information

Common Names

Annual Delphinium, Knight's Spur, Lark's Heel

Family

Ranunculaceae

Toxicity Details

Toxic Parts

all parts, seeds, young plants

Toxic Compound

Diterpene alkaloids (methyllycaconitine, deltaline)

Onset Time

30 minutes to 2 hours

Severity

severe

Symptoms to Watch For

Muscle tremors
Stiffness
Weakness
Cardiac failure
Respiratory paralysis
Death

What to Do

Veterinary emergency. Larkspur causes neuromuscular blockade. Young plants and seeds are most toxic. Immediate vet care required.

Do not wait for symptoms. Call your vet or poison control immediately.

About Larkspur

Larkspur is closely related to Delphinium and equally dangerous. The diterpene alkaloids cause progressive neuromuscular paralysis. Young plants contain the highest alkaloid concentrations. Even small amounts can be fatal.

Safe Alternatives

These plants provide a similar look but are non-toxic to pets:

✓ Snapdragon ✓ Sunflower ✓ Zinnia