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Ruderalis Cannabis

Cannabaceae

Ruderalis Cannabis (Cannabis ruderalis)

Cannabis ruderalis

Medium ☀️ Direct sun 🐾 Pet safe

Rugged and cold-hardy plant adapted to poor soils and harsh climates. Requires abundant direct sunlight, moderate watering with excellent drainage, and light, airy soil. Does not need photoperiod control to flower. Frost-tolerant but sensitive to waterlogging.

💧 Watering

Every 4 days

☀️ Light

Direct sun

🌡️ Temperature

-5° - 30°C

💨 Humidity

40% - 70%

Categories

What is Ruderalis Cannabis?

Ruderalis Cannabis (Cannabis ruderalis) is a medium-care plant from the Cannabaceae family. Cannabis ruderalis is a wild subspecies of Cannabis native to Central Asia, Russia, and Siberia. It is distinguished by its compact stature (rarely exceeding 60 cm) and its unique auto-flowering trait: it flowers based on plant maturity rather than light cycle (photoperiod). It has high CBD and low...

Ruderalis Cannabis grows up to 60cm, with spread of 40cm, watering every 4 days, -5°C – 30°C, 40–70% humidity. It is not suitable for indoor environments and safe for pets.

Unlike many popular species, Ruderalis Cannabis is safe to keep around pets.

How to Care for Ruderalis Cannabis?

TLDR: Ruderalis Cannabis needs Direct sun, watering every 4 days, and temperatures between -5-30°C with 40-70% humidity.

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How Often Should You Water Ruderalis Cannabis?

Water when the top layer of substrate is dry to the touch (every 3-5 days). Avoid overwatering as roots are susceptible to rot. Reduce frequency during colder periods.

☀️

How Much Light Does Ruderalis Cannabis Need?

Requires intense direct sunlight (minimum 20,000 lux). In controlled environments, thrives under 18-20 hours of light per day. Does not depend on photoperiod to initiate flowering.

🪴

What Is the Best Soil for Ruderalis Cannabis?

Prefers light, well-draining, airy substrate. Ideal pH 6.0-7.0. Naturally adapted to nutrient-poor soils typical of disturbed and arid environments in Central Asia.

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What Pot Should You Use for Ruderalis Cannabis?

Terracotta or ceramic pot with large drainage holes. Avoid plastic pots that retain excessive moisture.

Care Schedule

🌱

Fertilize

Every 30 days

What Is Ruderalis Cannabis and Where Does It Come From?

Cannabis ruderalis is a wild subspecies of Cannabis native to Central Asia, Russia, and Siberia. It is distinguished by its compact stature (rarely exceeding 60 cm) and its unique auto-flowering trait: it flowers based on plant maturity rather than light cycle (photoperiod). It has high CBD and low THC content, making it the subject of significant medicinal research. IMPORTANT: cultivation and possession of Cannabis ruderalis are REGULATED in most jurisdictions and laws vary significantly by country. This is a botanical reference, not a cultivation guide.

How to Propagate Ruderalis Cannabis?

🌱

Seed Propagation

Use fresh seeds for best germination rates. Germination occurs within 5-10 days under ideal conditions.

  1. 1
    Moisten a light, well-drained substrate
  2. 2
    Plant seed 1-2 cm deep
  3. 3
    Keep in a warm location (20-25°C) until germination
  4. 4
    Expose to direct sunlight once germinated

Materials needed:

SeedsLight substrateWatering canContainer with drainage holes
⏱️ Time: 5-10 days 📊 Success rate: high 🗓️ Best season: Spring

How Big Does Ruderalis Cannabis Grow?

TLDR: Ruderalis Cannabis can reach up to 60cm tall with Fast growth rate.

📏

Max height

60cm

↔️

Spread

40cm

📈

Growth rate

Fast

🍃

Foliage

Deciduous

⚠️

Warning: Toxic Plant

This plant can be toxic if ingested. Keep out of reach of:

👶 Children

Plant Uses

💊

Medicinal

Medicinal properties

💊

Medicinal Uses

  • Researched for potential treatment of anxiety, epilepsy, and depression due to high CBD content
  • Used in Russian and Mongolian folk medicine for depression treatment

Is your plant showing symptoms?

Click on the symptom to discover possible causes:

What Diseases Commonly Affect Ruderalis Cannabis?

TLDR: Ruderalis Cannabis is susceptible to 7 known diseases. Monitor regularly for early detection.

Powdery Mildew

Medium

Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.

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Gray Mold (Botrytis Blight)

High

Gray mold, caused by the fungus Botrytis cinerea, is a widespread necrotrophic pathogen affecting over 1,400 plant species. It thrives in cool, humid conditions and attacks weakened or aging plant tissues, causing soft rot and characteristic gray fuzzy growth.

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Root Rot

High

Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.

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Spider Mites

High

Spider mites are tiny arachnids (less than 1/20 inch long) related to spiders and ticks that feed on plant sap. They thrive in hot, dry conditions and can cause significant damage to ornamental and vegetable plants. During severe infestations, crop losses can reach 14% or higher as these pests disrupt vital plant processes including photosynthesis, carbon dioxide absorption, and transpiration.

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Meaning & Symbolism

Symbol of extreme resilience and adaptability, Cannabis ruderalis is scientifically valued for its auto-flowering trait and high CBD content. Cultivation and possession are REGULATED in most jurisdictions; laws vary significantly by country.

Fun Facts

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Cannabis ruderalis was first scientifically described in 1924 by Russian botanist D.E. Janischewsky from specimens collected in southern Siberia

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It is the only naturally auto-flowering Cannabis subspecies, blooming by maturity rather than photoperiod

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Its high CBD and low THC content made it the foundation for modern medicinal cannabis variety development

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It grows spontaneously on wasteland and roadsides in Russia, Mongolia, and Central Asian countries

Frequently asked questions

What makes Cannabis ruderalis different from other subspecies?
Its main characteristic is auto-flowering: it flowers based on plant maturity, regardless of the photoperiod (light hours). It is also more compact and has higher CBD concentration relative to THC.
Is Cannabis ruderalis toxic to humans?
It contains psychoactive compounds (THC in low concentrations) and CBD. Its use, cultivation, and possession are regulated or prohibited in most jurisdictions. Always consult local legislation.
How does Cannabis ruderalis adapt to cold?
It evolved on the cold steppes of Russia and Siberia, tolerating temperatures down to -5°C and poor soils. It is significantly more cold-hardy than Cannabis sativa or indica.
What is the scientific use of Cannabis ruderalis?
It is widely used in hybridization programs to transfer the auto-flowering trait to other varieties. It is also the subject of medicinal research for its high CBD content.

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Sources & References

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