Boston Fern vs Hardy Geranium Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Boston Fern
Nephrolepis exaltata
The Boston Fern is a classic houseplant known for its graceful, arching fronds. It's a terrestrial fern, naturally found in humid forests and swamps. Its lush green foliage creates a soft, textured appearance, making it a popular choice for adding a touch of nature to indoor spaces. People grow it for its aesthetic appeal, air-purifying qualities (though not definitively proven by NASA), and relatively easy care, provided its humidity needs are met. It is primarily an outdoor plant but can adapt to indoor conditions with proper care.
Hardy Geranium
Geranium spp.
Hardy Geraniums are herbaceous perennials known for their resilience and attractive foliage. They form mounds of often deeply lobed or divided leaves, ranging in color from green to bronze, sometimes with interesting patterns. They are primarily outdoor plants, valued for their long blooming period, producing saucer-shaped flowers in shades of pink, purple, blue, white, and magenta. While some species can tolerate indoor conditions with sufficient light, they are generally grown outdoors in gardens and borders for their ease of care and ability to suppress weeds.
Quick Plant Comparison
| Feature | Boston Fern | Hardy Geranium |
|---|---|---|
| Light | Bright, indirect light. Avoid direct sunlight, which can scorch the fronds. | Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal flowering. |
| Watering | Every 2-5 days, depending on humidity and light levels | Every 7-10 days outdoors, depending on weather conditions. |
| Humidity | 60-80% | 40-60% |
| Temperature | 18-24°C | 15-24°C |
| Care Level | Moderate | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 0.3-1 meter (indoors) | Indoors: 30-60 cm (unlikely to thrive). Outdoors: 30-90 cm. |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining potting mix rich in organic matter, such as peat moss or coco coir | Well-draining soil. A mix of garden soil, compost, and perlite is suitable. |
| Beginner Friendly | With Caution | ❌ No |
| Weekly Maintenance | 10-15 minutes weekly | 15 minutes weekly (deadheading, watering). |
🔬 Botanical Information — Comparing These Plants
Boston Fern
| Scientific Name | Nephrolepis exaltata |
|---|---|
| Family | Nephrolepidaceae |
| Native To | Tropical regions worldwide, particularly the Americas |
| Also Known As | Boston Fern, Sword Fern |
| Leaves | The leaves, or fronds, are pinnately compound, meaning they are composed of many small leaflets (pinnae) arranged along a central stem. The pinnae are typically bright green, lance-shaped, and have slightly serrated edges. The texture is delicate and feathery. |
| Flowers | Boston Ferns do not flower indoors. They reproduce via spores, which are located on the underside of the fronds. |
Hardy Geranium
| Scientific Name | Geranium spp. |
|---|---|
| Family | Geraniaceae |
| Native To | Various species originate from different regions worldwide, including Europe, Asia, and North America. |
| Also Known As | Hardy Geranium, Cranesbill |
| Leaves | Leaves are typically palmate or deeply lobed, ranging in color from green to bronze, sometimes with interesting patterns or markings. Leaf texture can vary from smooth to slightly hairy. |
| Flowers | Flowers are saucer-shaped, with five petals, and come in a variety of colors, including pink, purple, blue, white, and magenta. Flowering is profuse and long-lasting outdoors. Indoors, flowering is rare and significantly reduced. |
📏 Size & Growth — Plant Comparison
Boston Fern
Hardy Geranium
🌱 Propagation — Comparing Plant Growth
Boston Fern
Methods: Division, Spores
Difficulty: Moderate
Tips: Divide the plant at the root ball, ensuring each division has healthy fronds and roots. Propagating from spores is more challenging and requires a sterile environment.
Hardy Geranium
Methods: Division, Stem cuttings, Seed
Difficulty: Easy
Tips: Divide established clumps in spring or fall. Take stem cuttings in late spring or early summer and root in well-draining soil. Seeds can be sown in spring after a period of cold stratification.
✨ Benefits & Features — Comparing Plant Value
Boston Fern
Boston Ferns are known for their long, arching fronds that create a cascading effect. They require higher humidity than many other common houseplants, making them a bit more challenging to care for indoors.
- ✓ Adds a touch of nature and elegance to indoor spaces.
- ✓ Creates a relaxing and calming atmosphere.
- ✓ Can help to improve indoor air quality (though not definitively proven).
- ✓ Provides a sense of accomplishment when successfully cared for.
- ✓ Offers a visually appealing texture and color contrast to other houseplants.
- 🌬️ NASA-verified air purifier
- 🐾 Pet Safe
Hardy Geranium
Hardy Geraniums are known for their long blooming period, often flowering from late spring to fall. Their foliage can also be quite attractive, with some varieties displaying interesting colors and patterns.
- ✓ Attracts pollinators to the garden.
- ✓ Provides long-lasting color in the landscape.
- ✓ Deer resistant, reducing garden damage.
- ✓ Suppresses weeds, reducing maintenance.
- ✓ Relatively low-maintenance once established.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Boston Fern
Hardy Geranium
🌞 Light Requirements
Boston Fern
Bright, indirect light. Avoid direct sunlight, which can scorch the fronds.
Low light tolerant: ❌ No
Hardy Geranium
Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal flowering.
Low light tolerant: ❌ No
💧 Watering Needs
Boston Fern
Keep the soil consistently moist but not soggy. Water when the top inch of soil feels dry to the touch. Overwatering can lead to root rot, indicated by yellowing or browning fronds. Underwatering results in crispy, dry fronds.
Hardy Geranium
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, as this can lead to root rot. Ensure good drainage.
🌡️ Temperature & Humidity
Boston Fern
Temperature: 18-24°C
Humidity: 60-80%
Hardy Geranium
Temperature: 15-24°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Boston Fern
Nephrolepis exaltataIndividuals who can provide consistent moisture and high humidity, such as those with humidifiers or bathrooms with natural light.
✅ Choose This Plant If...
- You want a classic, elegant houseplant that adds a touch of greenery to your home.
- You are looking for a plant that is non-toxic to pets.
- You can provide the high humidity levels this plant needs to thrive.
- You have a bright, indirectly lit space where the fern can flourish.
- You enjoy the challenge of providing specific care requirements to keep a plant healthy.
❌ Skip This Plant If...
- You struggle to maintain consistent watering schedules.
- You live in a very dry climate and cannot provide adequate humidity.
- You don't have a location with bright, indirect light.
Hardy Geranium
Geranium spp.Gardeners looking for low-maintenance, long-blooming perennials for their outdoor beds and borders.
✅ Choose This Plant If...
- You want a low-maintenance perennial for your garden.
- You need a plant that is deer resistant.
- You want to attract pollinators to your garden.
- You desire a long blooming period.
- You need a plant that can suppress weeds.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide adequate sunlight for outdoor plants indoors.
- You are looking for a plant that thrives indoors with minimal care.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Boston Fern is rated Moderate care level, while Hardy Geranium is Expert.
💡 Pro Tips For Comparing These Plants
Boston Fern Care Tips
Boston Ferns require consistent moisture and high humidity to thrive indoors. Maintaining adequate humidity is the biggest challenge. They are not drought-tolerant and will suffer in dry environments. Provide bright, indirect light and regular fertilization during the growing season.
- Mist the fronds regularly to increase humidity.
- Place the pot on a pebble tray filled with water.
- Use a humidifier to maintain consistent humidity levels.
- Water thoroughly, allowing excess water to drain away.
- Avoid placing the plant near drafts or heat sources.
Hardy Geranium Care Tips
Hardy Geraniums are primarily outdoor plants. While they can be attempted indoors, providing adequate light and preventing pests can be challenging. They require well-draining soil, regular watering, and occasional fertilization. Indoor flowering is unlikely.
- Deadhead spent flowers regularly to encourage more blooms.
- Provide well-draining soil to prevent root rot.
- Fertilize in spring with a balanced slow-release fertilizer.
- Divide established clumps every few years to maintain vigor.
- Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
⚠️ Common Problems & Solutions — Plant Care Comparison
Boston Fern
Hardy Geranium
❓ Frequently Asked Questions — Comparing These Plants
Boston Fern
What are the light requirements for Boston Fern?
Boston Ferns prefer bright, indirect light. Direct sunlight can scorch the delicate fronds, causing them to turn brown and crispy. An east-facing window is ideal, providing gentle morning sunlight. A north-facing window can also work, but the plant may not grow as vigorously. If placing the fern near a south- or west-facing window, be sure to filter the light with a sheer curtain. Insufficient light can lead to leggy growth and pale fronds. Rotate the plant regularly to ensure even light exposure on all sides. Artificial grow lights can supplement natural light, especially during the darker winter months.
How do I care for Boston Fern?
Boston Ferns thrive in bright, indirect light and high humidity. Water consistently, keeping the soil evenly moist but not soggy. Check the soil moisture regularly and water when the top inch feels slightly dry. Mist the fronds frequently or place the plant on a pebble tray filled with water to increase humidity. Fertilize monthly during the growing season (spring and summer) with a diluted liquid fertilizer formulated for ferns. Avoid placing the plant in direct sunlight or near drafts, as these can cause the fronds to dry out and turn brown. Repot every 1-2 years in the spring, using a well-draining potting mix. Regularly remove any dead or yellowing fronds to encourage new growth and maintain the plant’s appearance. Monitor for pests such as spider mites and treat as needed.
How do I propagate Boston Fern?
Boston Ferns can be propagated by division or by spores. Division is the easier method. To divide, carefully remove the plant from its pot and gently separate the root ball into two or more sections, ensuring each section has healthy fronds and roots. Repot each section in fresh potting mix. Propagation by spores is more challenging. Collect spores from the underside of mature fronds and sow them on a moist, sterile potting mix. Cover with a clear plastic dome to maintain high humidity and keep in indirect light. Spores can take several weeks or months to germinate. Keep the soil consistently moist and provide adequate ventilation to prevent fungal growth.
Hardy Geranium
What are the light requirements for Hardy Geranium?
Hardy Geraniums thrive best in locations that receive at least six hours of sunlight per day, although they can tolerate partial shade. In hotter climates, providing some afternoon shade can help prevent leaf scorch. When planting, consider the amount of sunlight your garden receives at different times of the day and choose a location that provides the optimal balance of light and shade.
How do I care for Hardy Geranium?
Hardy Geraniums are remarkably easy to care for, making them ideal for gardeners of all levels. Plant them in well-draining soil in a location that receives full sun to partial shade. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize in spring with a balanced fertilizer to promote healthy growth and abundant blooms.
How do I propagate Hardy Geranium?
Hardy Geraniums can be easily propagated through division, stem cuttings, or seed. For division, carefully dig up the plant in early spring or fall and divide the root ball into smaller sections, each with healthy roots and foliage. Replant the divisions in well-draining soil.
Last updated: May 12, 2026 — Plant care data reviewed and verified by our editorial team.