Why timing matters more than the amount eaten
A few leaves might seem minor, but with autumn crocus, even small quantities can be dangerous due to colchicine's delayed action. Your 7 kg dog's size means toxins concentrate faster than in larger breeds. The real risk isn't the handful they ate today—it's whether those leaves came from the plant that blooms naked in fall (toxic) or the one flowering with leaves in spring (harmless).
Garden identification errors are common because dormant bulbs look similar. Check for nearby flowers: autumn crocus often grows alone, while spring varieties cluster. If you find purple blooms without surrounding foliage right now, treat this as an emergency—don't wait for the 2-6 hour delay before vomiting starts.
What to do in the next 30 minutes
Collect a sample of the plant, including any remaining leaves or flowers, sealed in a bag. Your vet will need this to distinguish between species quickly. Rinse your dog's mouth gently with water if they'll allow it, but don't force it if they're anxious—colchicine absorbs rapidly through mucous membranes anyway.
Call your clinic immediately even if your dog seems fine. With autumn crocus, early intervention is critical before cellular damage begins. Have your dog's weight ready (7 kg changes treatment protocols) and note exactly when they ate the leaves—the vet will calculate the risk window for symptom onset.
Why you can't rely on watching for symptoms
By the time a dog shows signs like abdominal pain or bloody diarrhea, colchicine has already disrupted cell division. The compound accumulates in tissues, so damage progresses over 24-48 hours even after vomiting stops. Small dogs may collapse suddenly without early warnings due to their faster metabolism.
Spring crocus ingestion might cause mild drooling or stomach upset, but autumn crocus attacks bone marrow and organs. Your vet may recommend blood tests now to establish baseline values, as platelet crashes and kidney markers won't rise until tomorrow. Don't let a calm demeanor today reassure you—this toxin works silently.
How vets will approach this differently
For spring crocus, clinics often suggest monitoring at home. But with suspected autumn crocus, expect aggressive treatment: IV fluids to protect kidneys, medications to stabilize cell membranes, and possibly hospitalization. Your 7 kg size means precise dosing is crucial—overhydration risks are higher in small patients.
Bring any plant photos you took earlier—vein patterns on leaves help botanists ID them fast. If you're unsure which crocus it was, vets will err on the side of caution. The next 12 hours are critical; they'll likely keep your dog for observation even if initial tests look normal, because colchicine's worst effects come later.
The step-by-step response, from the first minute to the vet visit, is in our Autumn Crocus / Meadow Saffron emergency guide.