Large-Flower Hemp-Nettle
Galeopsis speciosa
Family: Lamiaceae
Large-Flower Hemp-Nettle (Galeopsis speciosa) is a upright houseplant from the Lamiaceae family. Non-toxic to pets. Moderate to advanced care requirements.
Complete Care Guide
Light Requirements
Needs several hours of unfiltered sunlight daily. South-facing windowsill or sunroom is ideal.
Watering
Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated.
Typical schedule: every 5 days (adjust for season and environment).
Humidity
Tolerates dry air without issue. No special humidity measures needed — works great in air-conditioned or heated rooms.
Temperature
Keep between 50–80°F (10–27°C). Avoid cold drafts, heating vents, and sudden temperature changes. This plant tolerates cooler temperatures better than most.
Size & Growth
Mature size: approximately 44 inches tall × 34 inches wide. Growth rate is slow. Habit: upright.
Difficulty Level: 3/5
Moderate care requirements. Needs reasonably consistent watering, appropriate light, and attention to humidity. Best for someone with a few plants already.
Quick Tips
- ✓Water approximately every 5 days
- ✓Prefers direct light conditions
- ✓Humidity preference: low
- ✓Keep between 50-80°F
Common Problems & Solutions
Brown leaf tips
Cause: Low humidity, inconsistent watering, or mineral buildup from tap water
Fix: Increase humidity with a pebble tray or humidifier. Use filtered water. Water on a consistent schedule.
Pale or leggy growth
Cause: Insufficient light — plant is stretching toward the nearest light source
Fix: Move to a brighter location. Rotate plant quarterly for even growth.
Drooping or wilting
Cause: Usually underwatering or sudden temperature change
Fix: Water thoroughly and ensure consistent moisture. Avoid cold drafts and heating vents.
Pet Safe
Large-Flower Hemp-Nettle is non-toxic and safe for households with cats and dogs. Verified against the ASPCA Toxic and Non-Toxic Plant Database.
Frequently Asked Questions
Is Large-Flower Hemp-Nettle safe for cats and dogs?▼
Yes! Large-Flower Hemp-Nettle is non-toxic to both cats and dogs according to the ASPCA. Safe to keep in homes with pets.
How often should I water Large-Flower Hemp-Nettle?▼
Water approximately every 5 days, but always check the soil first. Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated. Adjust frequency based on season — less in winter, more in summer.
How much light does Large-Flower Hemp-Nettle need?▼
Large-Flower Hemp-Nettle prefers direct sun conditions. Needs several hours of unfiltered sunlight daily. South-facing windowsill or sunroom is ideal.
How big does Large-Flower Hemp-Nettle get?▼
Indoors, Large-Flower Hemp-Nettle typically reaches about 44 inches (112 cm) tall with a spread of around 34 inches. Growth rate is slow. Size depends on pot size, light, and care.
Is Large-Flower Hemp-Nettle good for beginners?▼
Large-Flower Hemp-Nettle has a difficulty rating of 3/5, so it's best for intermediate plant parents. It needs more specific conditions to thrive.
