Hemp Nettle
galeopsis pubescens
Also known as: ["Hairy Hemp Nettle","Downy Hemp Nettle"]
Overview
A herbaceous annual plant in the mint family, characterized by its hairy stems and leaves, and tubular flowers that are typically pink or purple.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Galeopsis |
| Botanical Name: | Galeopsis pubescens |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: garden bed or container in a location with good air circulation
- Suitable For:
- Is Weed: No
- Allergenicity: moderate
Environmental Needs
- Climate: {"temperatureRange":"5–30°C"}
- Hardiness: {"zones":"4–8"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining potting mix with added perlite or sand for aeration.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: After flowering or every 4–6 weeks during the growing season.
- Pruning Intensity: Moderate; remove up to one-third of the plant if overgrown.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate some direct morning sun but avoid harsh afternoon rays.
Sunlight Tolerance Tips:
Acclimate gradually to direct light; protect from intense sun to prevent leaf scorch; adjust placement based on indoor/outdoor conditions.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun to partial shade
Rotate plant for even growth; use sheer curtains to filter intense light; avoid placing near south-facing windows in summer.
Watering
every 5–7 days during active growth, reduce in winter
Water thoroughly but allow soil to dry between waterings; avoid overwatering, especially in cool conditions.
Soil
well-draining, loamy soil with moderate organic content
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy clay soils; top-dress with compost annually.
Temperature
Prefers 60–75°F (15–24°C); cooler temperatures in winter promote better growth and flowering.
Avoid sudden temperature changes; keep away from heating/cooling vents; maintain stable conditions for optimal growth.
Fertilizing
every 4–6 weeks during growing season
Always water before fertilizing to prevent root burn; flush soil occasionally to prevent salt buildup; reduce frequency in dormant periods.
Propagation
Methods
Stem cuttings in spring or early summer.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting below a leaf node.
- Remove lower leaves.
- Dip in rooting hormone (optional).
- Plant in moist medium.
- Maintain humidity.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–90%), warm temperatures (65–75°F), and indirect light.
Medium
Well-draining potting mix or perlite and peat moss mixture.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots develop in 2–4 weeks; new growth appears in 6–8 weeks.
Tools Needed
Pruning shears, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat for faster rooting.
Pruning & Repotting
Pruning Guide
Method
Pinch back stems or use clean cuts to shape the plant and remove dead or leggy growth.
Pruning Plan
Prune to encourage bushier growth and remove spent flowers to promote continuous blooming.
Tools
Pruning shears, sharp scissors, or your fingers for pinching.
Checklist
Sanitize tools; prune after flowering; remove dead or diseased parts; shape as desired.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Choose a pot one size larger (1–2 inches wider in diameter) than the current one.
Method
Remove plant gently; trim any circling roots; place in a new pot with fresh soil; water lightly after repotting.
Suggestions
Repot every 1–2 years or when roots outgrow the pot; beneficial for maintaining vigor.
Checklist
Check root bound status; prepare new pot with drainage; trim roots if necessary; use fresh soil mix.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water thoroughly; ensure drainage; adjust for season.
How to Apply Water Properly
Water directly at the base of the plant, ensuring even moisture distribution without saturating the foliage; allow excess water to drain away completely.
Watering Schedule Tips
Water when the top inch of soil feels dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate organic matter like compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, yellowing leaves, or stunted growth in extreme heat or cold; bud drop in fluctuating temperatures.
Cold Stress
Slows growth and can cause root damage if exposed to prolonged temperatures below 50°F (10°C).
Solution: Protect from drafts and cold windows; maintain consistent room temperature; avoid watering excessively in cool conditions.
Hot Stress
Leaves may wilt, curl, or develop brown edges; flowering may be reduced in excessive heat.
Solution: Provide shade during peak heat; increase humidity with misting or a pebble tray; ensure adequate water without overwatering.
Fertilizing Guide
Fertilizing Checklist
Check season; dilute fertilizer; water before application; avoid contact with leaves.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during the growing season (spring and summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicCats may experience mild gastrointestinal upset and allergic reactions if they ingest Galeopsis pubescens. The plant is not highly toxic but can cause discomfort in sensitive cats.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Galeopsis pubescens can lead to mild gastrointestinal upset and potential allergic reactions. The plant is not considered highly toxic but can cause discomfort in sensitive individuals.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicGaleopsis pubescens contains compounds that can cause mild gastrointestinal distress and allergic reactions in humans. The plant's effects are generally not severe but can be problematic for individuals with sensitive digestive systems or allergies.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Galeopsis pubescens toxic to pets?
A: There is insufficient data on its toxicity to pets.
Q: How does Galeopsis pubescens grow?
A: It is an annual plant that thrives in disturbed soils and can spread quickly in favorable conditions.
Q: Does Galeopsis pubescens attract wildlife?
A: Yes, it is known to attract bees, butterflies, and other pollinators.
Quick Reference
| Family: | Lamiaceae |
| Care: | easy |
| Light: | full sun to partial shade |
| Water: | every 5–7 days during active |
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