North America Non-native Plant

Strychnine Tree

Botanical name: Strychnos nuxvomica

USDA symbol: STNU4

Native status: Not native but doesn't reproduce and persist in the wild

Strychnine Tree: A Deadly Beautiful Plant You Should Never Grow When it comes to plants that look innocent but pack a deadly punch, the strychnine tree (Strychnos nuxvomica) takes the crown. While this tropical tree might catch your eye with its glossy leaves and fragrant flowers, it’s one plant that ...

Strychnine Tree: A Deadly Beautiful Plant You Should Never Grow

When it comes to plants that look innocent but pack a deadly punch, the strychnine tree (Strychnos nuxvomica) takes the crown. While this tropical tree might catch your eye with its glossy leaves and fragrant flowers, it’s one plant that should never, ever find its way into your garden. Let’s explore why this botanical beauty is better admired from afar—very far.

What is the Strychnine Tree?

The strychnine tree is a medium-sized evergreen native to India and Southeast Asia, including Sri Lanka, Myanmar, and Thailand. This tropical species produces small, fragrant white flowers that develop into attractive orange berries. Despite its appealing appearance, every single part of this tree contains strychnine, one of nature’s most potent and deadly alkaloids.

Why You Should Never Plant This Tree

Here’s the bottom line: the strychnine tree is incredibly dangerous and has no place in home gardens or public landscapes. The risks far outweigh any potential benefits, and here’s why:

  • All parts of the plant are extremely toxic to humans, pets, and wildlife
  • Even small amounts can be fatal if ingested
  • The attractive berries can tempt children and animals
  • No amount of careful handling can make this plant safe for home cultivation

Growing Conditions (For Educational Purposes Only)

While we strongly advise against planting this species, understanding its growing requirements helps explain where it might be encountered in nature. The strychnine tree thrives in:

  • USDA hardiness zones 10-12 (tropical climates only)
  • Full sun to partial shade conditions
  • Well-draining, fertile soils
  • High humidity and consistent warmth

Better Alternatives for Your Garden

Instead of risking your family’s safety with a strychnine tree, consider these beautiful and safe alternatives that can provide similar aesthetic appeal:

  • Native flowering trees appropriate for your region
  • Safe berry-producing plants like elderberry or serviceberry
  • Fragrant flowering trees such as native magnolias or redbuds
  • Evergreen options that won’t pose safety risks

The Bottom Line

While the strychnine tree might be fascinating from a botanical perspective, it has absolutely no place in residential or public gardens. The extreme toxicity of this plant makes it unsuitable and dangerous for cultivation. Instead, focus your gardening energy on native plants that will beautify your landscape while keeping your family, pets, and local wildlife safe.

Remember: when it comes to gardening, beautiful doesn’t always mean safe. Choose plants that you can enjoy without worry, and leave the deadly beauties like the strychnine tree to botanical textbooks and professional research facilities where they belong.

Strychnine Tree

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Gentianales

Family

Loganiaceae R. Br. ex Mart. - Logania family

Genus

Strychnos L. - strychnos

Species

Strychnos nux-vomica L. - strychnine tree

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA