Arborvitae vs Gaura Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Arborvitae
Thuja occidentalis
Thuja occidentalis, commonly known as American Arborvitae, is a coniferous evergreen tree or shrub. It typically grows outdoors to a height of 30-60 feet, forming a dense, pyramidal shape. The foliage consists of scale-like leaves arranged in flattened sprays. While valued for its use in hedges, screens, and ornamental plantings in landscapes, it is not naturally suited for indoor environments due to its high light and humidity requirements and large size. People grow it for its attractive foliage, fast growth, and tolerance of various soil conditions.
Gaura
Oenothera lindheimeri (formerly Gaura lindheimeri)
Oenothera lindheimeri, commonly known as Gaura, is a perennial flowering plant prized for its airy, delicate appearance. It features slender stems that can reach up to 5 feet tall, adorned with lance-shaped leaves. The plant produces numerous small, star-like flowers that bloom from spring through fall. The flowers are typically white or pink, often fading to a deeper rose color as they mature. Gaura is primarily an outdoor plant, valued for its long bloom time, drought tolerance, and ability to attract pollinators. It is grown in gardens and landscapes for its graceful form and continuous display of flowers.
Quick Plant Comparison
| Feature | Arborvitae | Gaura |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth. | Full sun (at least 6 hours of direct sunlight per day) |
| Watering | Every 1-2 weeks, depending on weather and soil drainage. | Every 1-2 weeks, depending on weather and soil conditions |
| Humidity | 40-60% | 30-50% |
| Temperature | 10-24°C | 15-30°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | Rarely grown indoors; outdoors 9-18 meters | N/A (Primarily an outdoor plant, indoor growth is unlikely) |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-draining, slightly acidic soil. A mix of loam, sand, and peat moss is suitable. | Well-draining soil, such as a sandy loam or a mix of potting soil and perlite |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes monthly (outdoor) | 5-10 minutes weekly (deadheading, watering) |
🔬 Botanical Information — Comparing These Plants
Arborvitae
| Scientific Name | Thuja occidentalis |
|---|---|
| Family | Cupressaceae |
| Native To | Eastern North America |
| Also Known As | American Arborvitae, Eastern Arborvitae, White Cedar, Swamp Cedar |
| Leaves | Scale-like, flattened, and arranged in overlapping sprays. Typically bright green, but can turn bronze in winter. Aromatic when crushed. |
| Flowers | Inconspicuous flowers that are rarely seen. Primarily grown for its foliage. |
Gaura
| Scientific Name | Oenothera lindheimeri (formerly Gaura lindheimeri) |
|---|---|
| Family | Onagraceae |
| Native To | Southern United States (Louisiana, Texas) |
| Also Known As | Gaura, Lindheimer's Beeblossom, White Gaura, Pink Gaura |
| Leaves | The leaves of Gaura are lance-shaped, narrow, and typically 2-4 inches long. They are usually green, but some varieties may have reddish or bronze hues. The leaves are arranged alternately along the stems. |
| Flowers | Gaura rarely flowers indoors due to insufficient light. Outdoors, it produces numerous small, star-like flowers that bloom from spring through fall. The flowers are typically white or pink, often fading to a deeper rose color as they mature. They are arranged in loose, airy panicles. |
📏 Size & Growth — Plant Comparison
Arborvitae
Gaura
🌱 Propagation — Comparing Plant Growth
Arborvitae
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer. Dip in rooting hormone and plant in well-draining soil. Keep moist and provide indirect light.
Gaura
Methods: Seed, Stem cuttings, Division
Difficulty: Easy
Tips: For stem cuttings, take 4-6 inch cuttings in spring or summer and root them in well-draining soil. Seeds can be sown directly in the garden in spring or fall. Division can be done in early spring or fall.
✨ Benefits & Features — Comparing Plant Value
Arborvitae
Its dense, evergreen foliage provides year-round privacy and screening. It is relatively fast-growing compared to other evergreens. The scale-like leaves are aromatic when crushed.
- ✓ Provides privacy and screening.
- ✓ Offers year-round greenery.
- ✓ Attracts birds and wildlife.
- ✓ Relatively low-maintenance once established.
- ✓ Can be used to create formal hedges or natural screens.
- ⚠️ Toxic to pets
Gaura
Gaura's airy, delicate appearance and long bloom time make it a unique and attractive addition to any garden. Its drought tolerance and ability to attract pollinators are also notable characteristics.
- ✓ Attracts pollinators
- ✓ Drought tolerant
- ✓ Long blooming season
- ✓ Low maintenance
- ✓ Adds a delicate, airy aesthetic to the garden
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Arborvitae
Gaura
🌞 Light Requirements
Arborvitae
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth.
Low light tolerant: ❌ No
Gaura
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
💧 Watering Needs
Arborvitae
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. In containers, ensure proper drainage. Signs of underwatering include browning foliage and drooping. Overwatering symptoms include yellowing leaves and a musty smell from the soil.
Gaura
Water deeply when the top inch of soil feels dry. Avoid overwatering, as it can lead to root rot. Gaura is drought-tolerant once established. Signs of underwatering include wilting and dry, crispy leaves. Overwatering can cause yellowing leaves and stem rot.
🌡️ Temperature & Humidity
Arborvitae
Temperature: 10-24°C
Humidity: 40-60%
Gaura
Temperature: 15-30°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Arborvitae
Thuja occidentalisLandscapers and gardeners looking for a fast-growing evergreen for hedges, screens, or ornamental plantings in outdoor settings.
✅ Choose This Plant If...
- You need a fast-growing evergreen screen or hedge for your yard.
- You want to attract birds to your garden.
- You have well-draining soil and plenty of sunlight.
- You live in a climate with cold winters and hot summers.
- You want a low-maintenance plant once established outdoors.
❌ Skip This Plant If...
- You live in an apartment or have limited outdoor space.
- You have pets that might ingest the foliage.
- You cannot provide at least 6 hours of direct sunlight daily.
- You are looking for an easy indoor plant.
Gaura
Oenothera lindheimeri (formerly Gaura lindheimeri)Gardeners looking for a low-maintenance, drought-tolerant perennial with a long bloom time to attract pollinators.
✅ Choose This Plant If...
- You want a drought-tolerant plant for a sunny garden location.
- You want to attract bees and butterflies to your garden.
- You want a plant with a long blooming season.
- You want a low-maintenance perennial.
- You appreciate a delicate, airy aesthetic in your garden.
❌ Skip This Plant If...
- You don't have a location with full sun.
- You are looking for an indoor plant.
- You live in a very cold climate where it may not survive the winter.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.
💡 Pro Tips For Comparing These Plants
Arborvitae Care Tips
American Arborvitae is primarily an outdoor plant and is very difficult to maintain indoors due to its high light and humidity requirements. It needs full sun and well-draining soil. Indoor cultivation is not recommended.
- Plant in well-draining soil to prevent root rot.
- Water deeply during dry periods, especially in the first year.
- Prune regularly to maintain shape and density.
- Protect from heavy snow and wind in winter.
- Monitor for pests and diseases and treat promptly.
Gaura Care Tips
Gaura is primarily an outdoor plant and is very difficult to grow indoors due to its high light requirements. It needs full sun and well-draining soil. Indoor attempts will likely result in leggy growth and poor flowering. It is best suited for outdoor gardens and landscapes.
- Plant in well-draining soil to prevent root rot.
- Deadhead spent flowers regularly to encourage more blooms.
- Provide full sun for optimal flowering.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
- Cut back stems in late fall or early spring to promote bushier growth.
⚠️ Common Problems & Solutions — Plant Care Comparison
Arborvitae
Gaura
❓ Frequently Asked Questions — Comparing These Plants
Arborvitae
What are the light requirements for Arborvitae?
Arborvitae thrives in bright, indirect light. Direct sunlight can scorch its delicate foliage, so avoid placing it directly in front of south-facing windows. East- or west-facing windows provide optimal light conditions. If you notice the foliage becoming pale or sparse, it may indicate insufficient light. Supplement with artificial grow lights if natural light is limited, especially during winter months. Rotate the plant regularly to ensure all sides receive adequate light. Monitor the plant’s growth and adjust its position as needed to maintain healthy foliage. Insufficient light can lead to legginess and poor growth.
How do I care for Arborvitae?
Indoor Arborvitae require bright, indirect light; avoid direct sunlight, which can scorch the foliage. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to prevent root rot. Maintain moderate humidity levels; consider using a humidifier or placing the pot on a pebble tray. Fertilize sparingly during the growing season (spring and summer) with a balanced, slow-release fertilizer. Repot every 2-3 years or when the plant becomes root-bound, using a well-draining potting mix. Prune regularly to maintain shape and remove any dead or yellowing foliage. Provide adequate air circulation to prevent fungal diseases. Monitor for pests such as spider mites and aphids, and treat promptly with insecticidal soap. Keep the plant in a stable temperature range, avoiding extreme fluctuations. Rotate the plant occasionally to ensure even growth. Dust leaves regularly to allow for better light absorption.
How do I propagate Arborvitae?
Arborvitae can be propagated through stem cuttings or air layering.
Gaura
What are the light requirements for Gaura?
Gaura thrives in full sun, requiring at least 6 hours of direct sunlight daily. This ample sunlight exposure promotes abundant flowering and strong, healthy growth. Inadequate light can result in leggy, weak stems and reduced bloom production. When planting Gaura, choose a location that receives maximum sunlight throughout the day. If growing Gaura in containers, position them in a sunny spot, such as a south-facing patio or balcony. In partially shaded areas, Gaura may still survive, but the flowering will be less prolific, and the plant may become more susceptible to diseases. If you live in a region with intense summer heat, providing some afternoon shade can help prevent scorching of the foliage. Observe your Gaura plants regularly and adjust their location as needed to ensure they receive the optimal amount of sunlight.
How do I care for Gaura?
Gaura plants are relatively easy to care for, making them a popular choice for gardeners of all levels. Provide them with full sun exposure (at least 6 hours daily) for optimal flowering. Well-draining soil is crucial to prevent root rot. Water deeply but infrequently, allowing the soil to dry out slightly between waterings. Fertilize sparingly, using a balanced fertilizer in spring and summer to encourage blooming. Prune regularly to maintain shape and promote bushier growth. Deadhead spent flowers to prolong the blooming season. Gaura is relatively drought-tolerant once established. Protect from excessive winter moisture in colder climates. In containers, ensure adequate drainage and use a well-draining potting mix. Gaura can tolerate a wide range of soil types, including sandy and clay soils, as long as drainage is good. Over-fertilizing can lead to leggy growth and reduced flowering. Monitor for pests such as aphids and whiteflies, and treat promptly if necessary.
How do I propagate Gaura?
Gaura can be propagated through division, stem cuttings, or seeds. For division, carefully dig up the plant in early spring or fall and separate the root ball into smaller sections, ensuring each section has healthy roots and foliage. Replant the divisions in well-draining soil. For stem cuttings, take 4-6 inch cuttings from healthy stems in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining potting mix and keep them moist until they root. Seeds can be sown directly into the garden in spring or fall. Alternatively, start seeds indoors 6-8 weeks before the last frost. Keep the soil moist and provide adequate light. Germination typically occurs within 2-3 weeks. Ensure proper spacing between plants to allow for adequate air circulation.
Last updated: April 27, 2026 — Plant care data reviewed and verified by our editorial team.