Field ManualAll plants

Photo: Yercaud-elango, via Wikimedia CommonsLicense: CC BY-SA 4.0

Snapdragon

Antirrhinum majus

Origin: Southwestern Europe and the Mediterranean region

  • Cool-Season Annual

Pet & Human Safety

People: Not researchedPets: Not on the ASPCA lists as we read them
Hazardous parts
Not yet checked.
Preparation
not applicable: not a food plant in PlotAndPetal
Hazard type
The NC State page lists no poison information. That is not a statement that the plant is safe.
Hazard route
Not yet checked.
How complete this information is
We have not researched the safety of this plant yet.

Toxic to pets
No ASPCA entry found.

Non-toxic to dogs, cats, and horses, per ASPCA's Common Snapdragon page. NC State Extension's entry for this species agrees.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Look-alike warning
Could be mistaken for 'Summer Snapdragon' (Angelonia angustifolia), a common nursery name for an unrelated genus in a different family. To tell them apart: Angelonia's small flower spikes superficially resemble true snapdragon's, but it's an unrelated genus; check the botanical name.. This guide covers true snapdragon only (Antirrhinum majus): Angelonia is not covered here and would need its own guide.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

Get the app: coming soon

Care

Hardiness zones

7a - 10b (NC State Extension); grown as a cool-season annual farther north

Water needs

moderate

Mature size

6 in (dwarf/bedding types) to 4 ft (tall cutting types) depending on cultivar.

Family

Plantaginaceae (formerly Scrophulariaceae)

Soil & Drainage
Pruning & Flush Rhythm
Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

Get the app: coming soon

Anatomy & Guilds

Botanical Anatomy & Characteristics

How the flowers and leaves are built and which pollinators visit, where we have them.

Get the app: coming soon

Field Doctor

Field Doctor

What can go wrong with this plant and what to do about it, where we have them.

Get the app: coming soon

Vintage Plates

Vintage Plates

Old botanical drawings from public libraries are in the app, for plants where we have them.

Get the app: coming soon

Sources

  1. NC State Extension Gardener Plant Toolbox, Antirrhinum majus
  2. ASPCA, Toxic and Non-toxic Plants

How we choose sources

Wishlists live in the app

Wishlists are part of the Plot & Petal app, which is coming soon. Nothing is added to a wishlist from this page.

Get the app: coming soon