Australian Tree Fern vs Marjoram Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Australian Tree Fern
Cyathea cooperi
The Australian Tree Fern (Cyathea cooperi) is a fast-growing tree fern characterized by its elegant, arching fronds and distinctive trunk covered in brown scales. It's primarily an outdoor plant, thriving in humid, subtropical environments. Its large size and specific environmental needs make it challenging to grow indoors long-term. People grow it for its tropical appearance and architectural interest in gardens and landscapes. It can reach impressive heights in its natural habitat. The plant's beauty lies in its delicate-looking but resilient fronds.
Marjoram
Origanum majorana
Marjoram is a perennial herb, though often grown as an annual, reaching about 1-2 feet in height. It features small, oval, grayish-green leaves and tiny white or pale pink flowers that bloom in summer. It has a bushy growth habit. Primarily an outdoor plant, it is cultivated for its aromatic leaves, which are used as a culinary herb. While it can be grown indoors, it requires very specific conditions to thrive. People grow it for its flavor and fragrance.
Quick Plant Comparison
| Feature | Australian Tree Fern | Marjoram |
|---|---|---|
| Light | Bright, indirect light to partial shade. Avoid direct sunlight, especially during the hottest part of the day. | Full sun (at least 6-8 hours of direct sunlight daily) |
| Watering | Every 2-4 days, depending on environmental conditions and pot size. | Every 5-7 days outdoors, every 7-10 days indoors, depending on light and temperature |
| Humidity | 60-80% | 30-50% |
| Temperature | 18-24°C | 18-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | Indoors: 1-2 meters (difficult to maintain this size long-term) | 0.3-0.6 meters (1-2 feet) indoors |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining, slightly acidic soil rich in organic matter. A mix of peat moss, perlite, and tree fern fiber is ideal. | Well-draining soil, such as a mix of potting soil, perlite, and sand |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Australian Tree Fern
| Scientific Name | Cyathea cooperi |
|---|---|
| Family | Cyatheaceae |
| Native To | Eastern Australia (New South Wales and Queensland) |
| Also Known As | Australian Tree Fern, Cooper's Cyathea, Lacy Tree Fern |
| Leaves | Large, lacy, bright green fronds that can reach up to 4 meters in length. The fronds are divided into numerous leaflets, giving them a delicate and feathery appearance. |
| Flowers | Does not flower indoors. Tree ferns reproduce via spores, not flowers. |
Marjoram
| Scientific Name | Origanum majorana |
|---|---|
| Family | Lamiaceae |
| Native To | Mediterranean region, North Africa, Western Asia |
| Also Known As | Sweet Marjoram, Knotted Marjoram |
| Leaves | The leaves are small, oval, and grayish-green in color. They have a slightly fuzzy texture and a distinct aroma when crushed. |
| Flowers | Marjoram produces small, white or pale pink flowers in the summer. It may flower indoors under ideal conditions, but it is not guaranteed. |
📏 Size & Growth — Plant Comparison
Australian Tree Fern
Marjoram
🌱 Propagation — Comparing Plant Growth
Australian Tree Fern
Methods: Spores, Division (of pups that grow at the base of the trunk)
Difficulty: Difficult
Tips: Spore propagation is very slow and requires sterile conditions. Division is more practical but requires careful handling to avoid damaging the parent plant.
Marjoram
Methods: Stem cuttings, Seed, Division
Difficulty: Easy
Tips: For stem cuttings, take 4-6 inch cuttings from new growth, remove lower leaves, and place in water or moist soil. For seeds, sow indoors 6-8 weeks before the last frost. Division can be done in spring or fall.
✨ Benefits & Features — Comparing Plant Value
Australian Tree Fern
The Australian Tree Fern's fast growth rate and large size distinguish it from other ferns. Its trunk, covered in brown scales, adds a unique texture and visual appeal. It's also relatively adaptable to different soil types.
- ✓ Creates a lush, tropical atmosphere
- ✓ Adds architectural interest to gardens
- ✓ Provides a sense of tranquility
- ✓ Can improve indoor air quality slightly by increasing humidity
- ✓ Offers a connection to nature
- 🐾 Pet Safe
Marjoram
Marjoram is known for its sweet, floral aroma and flavor, which is milder than oregano. It is a versatile herb used in a variety of culinary dishes.
- ✓ Fresh herbs for cooking
- ✓ Aromatic fragrance
- ✓ Can be used in teas and aromatherapy
- ✓ Attractive foliage
- ✓ Can be grown in containers
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Australian Tree Fern
Marjoram
🌞 Light Requirements
Australian Tree Fern
Bright, indirect light to partial shade. Avoid direct sunlight, especially during the hottest part of the day.
Low light tolerant: ❌ No
Marjoram
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
Australian Tree Fern
Water frequently to keep the soil consistently moist but not waterlogged. Allow the top inch of soil to slightly dry out before watering again. Overwatering can lead to root rot, while underwatering will cause the fronds to dry and brown. Ensure good drainage.
Marjoram
Water thoroughly when the top inch of soil feels dry to the touch. Avoid overwatering, as this can lead to root rot. Allow excess water to drain away. Signs of overwatering include yellowing leaves and a musty smell. Underwatered plants will have wilting leaves.
🌡️ Temperature & Humidity
Australian Tree Fern
Temperature: 18-24°C
Humidity: 60-80%
Marjoram
Temperature: 18-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Australian Tree Fern
Cyathea cooperiExperienced plant enthusiasts who can provide the high humidity and bright, indirect light required for this fern to thrive.
✅ Choose This Plant If...
- You want a dramatic, tropical statement plant for a large, bright space.
- You can provide consistently high humidity.
- You are experienced with fern care.
- You live in a mild climate where it can be grown outdoors year-round.
- You have a greenhouse or conservatory.
❌ Skip This Plant If...
- You have limited space.
- You cannot provide high humidity.
- You are a beginner plant owner.
Marjoram
Origanum majoranaExperienced gardeners who want to grow herbs indoors and can provide the necessary light and care.
✅ Choose This Plant If...
- You want to grow your own culinary herbs indoors
- You have a very sunny location or can provide supplemental lighting
- You enjoy the aroma of marjoram
- You are an experienced gardener looking for a challenge
- You want to use fresh marjoram in your cooking.
❌ Skip This Plant If...
- You have pets that might ingest the plant
- You cannot provide adequate sunlight or supplemental lighting
- You are a beginner gardener
- You tend to overwater plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Australian Tree Fern has fast growth, while Marjoram grows moderate.
💡 Pro Tips For Comparing These Plants
Australian Tree Fern Care Tips
Australian Tree Ferns are challenging to grow indoors due to their high humidity and light requirements. They need consistent moisture and are prone to drying out in typical indoor environments. Maintaining adequate humidity is crucial for their survival. They are best suited for outdoor environments or greenhouses.
- Mist the fronds regularly to increase humidity.
- Use rainwater or distilled water to avoid mineral buildup on the fronds.
- Provide good air circulation to prevent fungal diseases.
- Protect from strong winds, which can damage the fronds.
- Fertilize regularly during the growing season with a balanced liquid fertilizer.
Marjoram Care Tips
Marjoram is primarily an outdoor plant that requires full sun and well-draining soil. Growing it indoors is challenging due to its high light requirements. Supplemental lighting is often necessary. Overwatering is a common problem indoors. It is also toxic to pets.
- Provide at least 6-8 hours of direct sunlight or strong supplemental lighting
- Use well-draining soil to prevent root rot
- Water only when the top inch of soil is dry
- Pinch back stems regularly to encourage bushier growth
- Fertilize every 4-6 weeks during the growing season.
⚠️ Common Problems & Solutions — Plant Care Comparison
Australian Tree Fern
Marjoram
❓ Frequently Asked Questions — Comparing These Plants
Australian Tree Fern
What are the light requirements for Australian Tree Fern?
Australian Tree Ferns require bright, indirect light to thrive. Direct sunlight can scorch their delicate fronds, causing them to turn brown and crispy. An east-facing window is often ideal, providing gentle morning light. A north-facing window can also work, especially if supplemented with artificial light. If you place your fern near a south or west-facing window, use a sheer curtain to filter the light.
How do I care for Australian Tree Fern?
The Australian Tree Fern thrives in consistently moist conditions and high humidity. Water thoroughly when the top inch of the soil feels slightly dry. Avoid letting the soil dry out completely, as this can lead to browning fronds. Provide bright, indirect light; direct sunlight can scorch the fronds. Maintain humidity levels above 60% by misting regularly, using a humidifier, or placing the pot on a pebble tray filled with water.
How do I propagate Australian Tree Fern?
Australian Tree Ferns can be propagated by division or spores, though spore propagation is more challenging. For division, carefully separate the trunk into sections, ensuring each section has roots. Plant each section in its own pot with well-draining soil. Keep the soil consistently moist and provide high humidity.
Marjoram
What are the light requirements for Marjoram?
Marjoram requires ample sunlight to thrive and produce its flavorful leaves and flowers. Aim for at least 6 hours of direct sunlight per day. Indoors, a south-facing window is ideal. If natural light is insufficient, supplement with a grow light for 12-14 hours daily. Insufficient light can result in leggy growth, pale leaves, and reduced flowering.
How do I care for Marjoram?
Marjoram thrives with consistent care. Provide at least 6 hours of direct sunlight daily, ideally in a south-facing window indoors or a sunny spot outdoors. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength, or a fertilizer designed to promote blooming.
How do I propagate Marjoram?
Marjoram can be easily propagated through stem cuttings or division. For stem cuttings, take a 4-6 inch cutting from a healthy stem, remove the lower leaves, and place the cutting in water or directly into moist potting mix. Keep the cutting in a warm, humid environment until roots develop, usually within 2-3 weeks.
Last updated: April 27, 2026 — Plant care data reviewed and verified by our editorial team.