Narrow-leaved Hemp-nettle
galeopsis angustifolia
Also known as: ["Narrow-leaved Hemp-nettle"]
Overview
A herbaceous annual plant in the mint family, known for its narrow leaves and tubular flowers.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Galeopsis |
| Botanical Name: | Galeopsis angustifolia |
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":"10–30°C"}
- Hardiness: {"zones":"6–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, loamy soil with added organic matter.
Maintenance Level
- Maintenance Level: low
- Toughness Level: moderate
- Pruning Frequency: Every 2–3 months or as needed to maintain shape.
- Pruning Intensity: Moderate; remove up to one-third of growth if necessary.
Care Details
Ideal Sunlight Coverage:
Bright indirect light or partial shade; 6–8 hours of sunlight per day, with protection from intense midday sun.
Sunlight Tolerance Tips:
Acclimate plants gradually to outdoor sunlight; avoid direct scorching rays; provide shade during peak summer hours.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun to partial shade
Rotate plant for even light exposure; use sheer curtains to filter intense light; adjust light levels seasonally.
Watering
every 5–7 days during active growth, reduce in winter
Water thoroughly but allow soil to dry between waterings; avoid overwatering, especially in winter.
Soil
well-draining, loamy soil with moderate organic content
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers cool to moderate temperatures, ideally 60–70°F (15–21°C); tolerates cooler nights but avoids extreme heat.
Monitor temperature fluctuations; use a thermometer; adjust care based on seasonal changes.
Fertilizing
every 2 weeks during growing season, none in winter
Dilute fertilizer to prevent burn; fertilize during active growth; stop in dormant periods.
Propagation
Methods
Stem cuttings or seed propagation.
Step-by-Step Propagation Guide
- Take a cutting, remove lower leaves, dip in hormone (optional), plant in medium, maintain humidity, wait for roots.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light.
Medium
Well-draining potting mix with perlite or sand.
Hormone
Optional, but can help speed up rooting.
Timeline
Roots typically form in 2–4 weeks; new growth may take 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 if possible.
Pruning & Repotting
Pruning Guide
Method
Pinch back stems or use clean cuts to encourage branching.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead or diseased parts.
Tools
Pruning shears, sharp scissors, gloves.
Checklist
Sanitize tools, prune dead/diseased parts, shape the plant, clean up debris.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches in diameter.
Method
Gently remove plant, trim roots if needed, place in new pot with fresh soil, water lightly.
Suggestions
Repot every 1–2 years or when roots outgrow the pot; beneficial for growth and health.
Checklist
Check root bound status, prepare new pot, trim roots, add fresh soil, water lightly.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture, water thoroughly, ensure drainage, adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring even moisture reaches the root zone; avoid wetting foliage to prevent fungal issues; ensure excess water drains away.
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 sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or stunted growth in excessive heat; yellowing or browning leaves in cold stress.
Cold Stress
Slows growth, may cause leaf discoloration, and increases susceptibility to pests and diseases.
Solution: Move to a warmer location; provide a heat source if necessary; avoid cold drafts.
Hot Stress
Leaves may scorch, wilt, or drop; growth may become stunted.
Solution: Provide shade, increase humidity, and water more frequently during heatwaves.
Fertilizing Guide
Fertilizing Checklist
Check season, dilute fertilizer, apply to soil, avoid foliage, monitor plant response.
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 if they consume Galeopsis angustifolia. The plant is not considered highly toxic to cats but can cause discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Galeopsis angustifolia can lead to mild gastrointestinal upset. The plant is not highly toxic but can cause discomfort, particularly in dogs with sensitive stomachs.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicGaleopsis angustifolia 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 angustifolia toxic to pets?
A: There is insufficient data on its toxicity to pets.
Q: How does this plant attract wildlife?
A: It produces nectar-rich flowers that attract bees, butterflies, and birds.
Q: Is this plant suitable for beginners?
A: Yes, it is relatively easy to grow and requires low maintenance.
Quick Reference
| Family: | Lamiaceae |
| Care: | easy |
| Light: | full sun to partial shade |
| Water: | every 5–7 days during active |
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