North America Non-native Plant

Oppositeleaf Russian Thistle

Botanical name: Salsola soda

USDA symbol: SASO3

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Oppositeleaf Russian Thistle: An Unusual Edible Annual for Challenging Sites Meet Salsola soda, better known as oppositeleaf Russian thistle – a quirky little annual that’s tougher than it looks. Despite its somewhat intimidating common name, this isn’t your typical spiky thistle. Instead, it’s a succulent-like forb with a fascinating ability ...

Oppositeleaf Russian Thistle: An Unusual Edible Annual for Challenging Sites

Meet Salsola soda, better known as oppositeleaf Russian thistle – a quirky little annual that’s tougher than it looks. Despite its somewhat intimidating common name, this isn’t your typical spiky thistle. Instead, it’s a succulent-like forb with a fascinating ability to thrive where other plants fear to tread.

What Exactly Is Oppositeleaf Russian Thistle?

Oppositeleaf Russian thistle is an annual forb, meaning it’s a soft-stemmed plant that completes its entire life cycle in one growing season. As a forb, it lacks the woody tissue that characterizes shrubs and trees, instead relying on its herbaceous stems and leaves to carry out its business of growing, flowering, and setting seed before the year is out.

This plant has made itself at home in California, where it’s naturalized and reproduces without human intervention. Originally from Mediterranean coastal regions, it’s adapted well to life in the Golden State’s diverse landscapes.

A Plant That Loves the Wet (And the Not-So-Wet)

Here’s where things get interesting: oppositeleaf Russian thistle is classified as a facultative wetland plant in both the Arid West and Western Mountains, Valleys, and Coast regions. This fancy term simply means it usually hangs out in wetland areas but isn’t picky enough to turn down a good non-wetland spot if it’s available.

Why Consider Growing Oppositeleaf Russian Thistle?

While this plant might not win any beauty contests with its small, inconspicuous flowers, it has some compelling qualities:

  • Extreme tolerance: This plant thrives in saline and alkaline soils where many others would struggle
  • Low maintenance: Once established, it requires minimal care
  • Edible qualities: Young leaves can be harvested for culinary use
  • Rapid establishment: As an annual, it quickly fills space in challenging areas

The Flip Side

Before you get too excited, consider these drawbacks:

  • Limited ornamental value: It’s more functional than beautiful
  • Annual commitment: You’ll need to replant each year or rely on self-seeding
  • Non-native status: While not invasive, it doesn’t support local ecosystems like native plants do

Growing Conditions and Care

If you decide to give oppositeleaf Russian thistle a try, here’s what it needs:

  • Sun exposure: Full sun is preferred
  • Soil: Thrives in challenging soils, particularly those that are saline or alkaline
  • Water: Drought tolerant once established, but appreciates consistent moisture during germination
  • Climate: Best suited for Mediterranean-type climates

Planting and Maintenance Tips

Growing oppositeleaf Russian thistle is refreshingly straightforward:

  • Direct seed in spring after the last frost
  • Scatter seeds over prepared soil and lightly rake in
  • Water gently until germination occurs
  • Thin seedlings if overcrowded
  • Harvest young leaves for eating before the plant flowers
  • Allow some plants to go to seed if you want natural reseeding

Consider Native Alternatives

While oppositeleaf Russian thistle can serve a purpose in challenging sites, consider these California native alternatives that offer similar benefits:

  • Saltgrass (Distichlis spicata): Excellent salt tolerance
  • Alkali heath (Frankenia salina): Thrives in saline conditions
  • Sea-blite (Suaeda calceoliformis): Native succulent for coastal areas

The Bottom Line

Oppositeleaf Russian thistle won’t be the star of your garden, but it might just be the reliable supporting actor you need for those problem spots where nothing else will grow. Its superpower lies in its ability to stabilize and populate areas with challenging soil conditions while requiring virtually no pampering from you.

Just remember that while this plant isn’t causing ecological havoc, choosing native alternatives when possible helps support local wildlife and maintains the natural character of your regional landscape. Sometimes the most interesting plants are the ones that quietly do their job without asking for applause – and oppositeleaf Russian thistle certainly fits that description.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Arid West

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Western Mountains, Valleys, and Coast

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Oppositeleaf Russian Thistle

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Chenopodiaceae Vent. - Goosefoot family

Genus

Salsola L. - Russian thistle

Species

Salsola soda L. - oppositeleaf Russian thistle

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