Hawthorn vs Pencil Tree Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Hawthorn
Crataegus spp.
Hawthorns are deciduous shrubs or small trees, typically reaching heights of 5-15 meters. They are characterized by their thorny branches, simple leaves, and clusters of white, pink, or red flowers in spring. These flowers give way to small, apple-like fruits called haws in the fall. Hawthorns are primarily outdoor plants, valued for their ornamental appeal, wildlife value (providing food and shelter), and traditional medicinal uses. Growing them indoors is extremely challenging due to their need for full sun and dormancy period.
Pencil Tree
Euphorbia tirucalli
Euphorbia tirucalli, commonly known as the Pencil Tree, is a succulent shrub or small tree characterized by its smooth, cylindrical, pencil-thick green branches. It is virtually leafless, with small, insignificant leaves that appear briefly and fall off quickly. This plant is primarily grown for its unique architectural form and drought tolerance. It thrives in warm climates and is often used as a landscape plant in arid regions. While it can be grown indoors, it requires very bright light and careful watering to prevent root rot. The milky sap is toxic and can cause skin and eye irritation.
Quick Plant Comparison
| Feature | Hawthorn | Pencil Tree |
|---|---|---|
| Light | Full sun (at least 6 hours of direct sunlight per day) | Full sun to very bright indirect light. Requires at least 6-8 hours of direct sunlight daily to thrive. |
| Watering | Once or twice a week during the growing season, less frequently during dormancy. | Every 2-4 weeks, depending on light and temperature. |
| Humidity | 30-50% | 30-50% |
| Temperature | 10-24°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | Outdoor: 5-15 meters. Indoor: Not suitable for indoor growing. | 1-2 meters indoors, up to 7 meters outdoors. |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining soil; tolerates a wide range of soil types, including clay, loam, and sandy soils. | Well-draining succulent or cactus mix. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes monthly | 10 minutes bi-weekly |
🔬 Botanical Information — Comparing These Plants
Hawthorn
| Scientific Name | Crataegus spp. |
|---|---|
| Family | Rosaceae |
| Native To | Native to temperate regions of North America, Europe, and Asia |
| Also Known As | Hawthorn, Thornapple, May-tree, Whitethorn |
| Leaves | Hawthorn leaves are simple, alternate, and typically lobed or toothed. They are usually green in color and can vary in size and shape depending on the species. |
| Flowers | Hawthorns produce clusters of white, pink, or red flowers in spring. Flowering typically occurs in May, hence the common name 'May-tree'. They do not flower indoors. |
Pencil Tree
| Scientific Name | Euphorbia tirucalli |
|---|---|
| Family | Euphorbiaceae |
| Native To | East Africa, Madagascar, India |
| Also Known As | Pencil Tree, Milk Bush, Indian Tree Spurge, Naked Lady |
| Leaves | Leaves are small, linear, and inconspicuous, appearing briefly during the growing season and quickly falling off. They are typically less than 1 cm long and are not a prominent feature of the plant. |
| Flowers | Rarely flowers indoors. Outdoors, it may produce small, inconspicuous yellow flowers at the tips of the branches, but flowering is infrequent. |
📏 Size & Growth — Plant Comparison
Hawthorn
Pencil Tree
🌱 Propagation — Comparing Plant Growth
Hawthorn
Methods: Seed, cuttings, grafting
Difficulty: Moderate To Difficult
Tips: Seed propagation requires stratification (cold treatment) to break dormancy. Cuttings should be taken from semi-hardwood in late summer. Grafting is often used to propagate specific cultivars.
Pencil Tree
Methods: Stem cuttings
Difficulty: Moderate
Tips: Allow the cut end to callous over for several days before planting in well-draining soil. Use gloves and eye protection when taking cuttings due to the toxic sap.
✨ Benefits & Features — Comparing Plant Value
Hawthorn
Hawthorns are known for their thorny branches, which provide protection from herbivores and create habitat for birds. They also have attractive flowers and fruits, making them a valuable addition to the landscape.
- ✓ Provides food and shelter for wildlife
- ✓ Offers seasonal beauty with flowers and fruits
- ✓ Has traditional medicinal uses
- ✓ Can be used as a hedge or screen
- ✓ Relatively low-maintenance once established
- ⚠️ Toxic to pets
Pencil Tree
The Pencil Tree is distinguished by its smooth, cylindrical, pencil-thick green branches and its virtually leafless appearance. Its drought tolerance and unique architectural form make it a striking addition to any collection. The milky sap is a key characteristic and a reminder of its toxicity.
- ✓ Drought tolerance
- ✓ Unique sculptural form
- ✓ Low maintenance (once established)
- ✓ Adds visual interest to a space
- ✓ Can be grown outdoors in warm climates
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Hawthorn
Pencil Tree
🌞 Light Requirements
Hawthorn
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
Pencil Tree
Full sun to very bright indirect light. Requires at least 6-8 hours of direct sunlight daily to thrive.
Low light tolerant: ❌ No
💧 Watering Needs
Hawthorn
Water deeply when the topsoil feels dry to the touch. Avoid overwatering, which can lead to root rot. Hawthorns are relatively drought-tolerant once established. Signs of underwatering include wilting leaves and dry soil. Signs of overwatering include yellowing leaves and soggy soil.
Pencil Tree
Allow the soil to dry out completely between waterings. Water thoroughly when the soil is dry to the touch, ensuring excess water drains away. Overwatering can lead to root rot. Reduce watering frequency during the dormant winter months. Signs of overwatering include yellowing or mushy stems. Underwatering is indicated by shriveled branches.
🌡️ Temperature & Humidity
Hawthorn
Temperature: 10-24°C
Humidity: 30-50%
Pencil Tree
Temperature: 18-27°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Hawthorn
Crataegus spp.Gardeners with outdoor space seeking an ornamental tree or shrub that provides wildlife value.
✅ Choose This Plant If...
- You have a large outdoor space and want a small tree or shrub with seasonal interest.
- You want to attract birds and other wildlife to your garden.
- You are interested in the traditional medicinal uses of hawthorn.
- You appreciate the beauty of its spring flowers and fall fruits.
- You want a relatively low-maintenance plant once established.
❌ Skip This Plant If...
- You only have indoor space available.
- You have pets that might ingest the plant.
- You live in a climate that is not suitable for hawthorn (e.g., tropical).
Pencil Tree
Euphorbia tirucalliExperienced plant owners seeking a unique, drought-tolerant plant for a very sunny location.
✅ Choose This Plant If...
- You have a very sunny location indoors or live in a warm, arid climate.
- You want a unique and sculptural plant.
- You are experienced with succulent care.
- You are looking for a drought-tolerant plant.
- You are prepared to handle a toxic plant safely.
❌ Skip This Plant If...
- You have pets or small children who might ingest the plant.
- You cannot provide very bright light.
- You tend to overwater plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Hawthorn has moderate growth, while Pencil Tree grows moderate.
💡 Pro Tips For Comparing These Plants
Hawthorn Care Tips
Hawthorns are primarily outdoor plants and are not suitable for indoor growing. They require full sun, well-draining soil, and a period of winter dormancy. Indoor cultivation is extremely challenging and not recommended.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for optimal flowering and fruiting.
- Prune annually to maintain shape and remove dead wood.
- Monitor for pests and diseases and treat promptly.
- Protect young trees from deer browsing.
Pencil Tree Care Tips
Pencil Trees are relatively easy to care for outdoors in warm, arid climates. Indoors, they require very bright light and careful watering to avoid root rot. The toxic sap poses a risk to pets and humans, requiring careful handling. Maintaining adequate light levels indoors is the biggest challenge.
- Provide excellent drainage to prevent root rot.
- Allow the soil to dry out completely between waterings.
- Wear gloves and eye protection when handling the plant.
- Provide at least 6-8 hours of direct sunlight daily.
- Fertilize sparingly during the growing season.
⚠️ Common Problems & Solutions — Plant Care Comparison
Hawthorn
Pencil Tree
❓ Frequently Asked Questions — Comparing These Plants
Hawthorn
What are the light requirements for Hawthorn?
Hawthorn trees thrive in bright, indirect sunlight. While they can tolerate some direct sunlight, especially in the morning or late afternoon, prolonged exposure to intense direct sun can scorch their leaves. An east-facing window is often ideal, providing gentle morning light. A south-facing window can also work, but be sure to filter the light with a sheer curtain. If your Hawthorn is not receiving enough light, it may exhibit leggy growth or produce fewer flowers. Rotate the plant regularly to ensure even light exposure on all sides. If natural light is insufficient, consider supplementing with grow lights. Keep the light source 6-12 inches away from the plant for best results.
How do I care for Hawthorn?
Hawthorn trees, when grown indoors, require specific care to thrive. Place your Hawthorn in a location that receives bright, indirect sunlight. Direct sunlight can scorch the leaves, especially during the hottest part of the day. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to prevent root rot. Use a well-draining potting mix formulated for bonsai or trees. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain the desired shape and remove any dead or crossing branches. Repot every 2-3 years, or when the plant becomes root-bound, using a slightly larger pot. Monitor for pests such as aphids or spider mites and treat promptly with insecticidal soap. Maintain moderate humidity levels, especially during the winter months when indoor air tends to be drier.
How do I propagate Hawthorn?
Hawthorn trees can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy branch in the spring. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag to increase humidity. Roots should develop in 4-6 weeks. For air layering, select a healthy branch and make a shallow cut in the bark. Wrap the cut with moist sphagnum moss and cover with plastic wrap. Secure the plastic wrap with tape or twine. Keep the moss moist. Roots should develop in several weeks. Once roots are visible, cut the branch below the roots and pot it in a well-draining potting mix.
Pencil Tree
What are the light requirements for Pencil Tree?
Pencil Tree requires bright, indirect sunlight to thrive. A location near a south-facing window is ideal. It can tolerate some direct sunlight, especially in the morning or late afternoon, but prolonged exposure to intense midday sun can scorch the branches. If your plant is not receiving enough light, the branches may become thin and leggy. Rotate the plant regularly to ensure even light exposure on all sides. During winter months, when light levels are lower, consider using a grow light to supplement the natural light. Adequate light is essential for maintaining the plant’s vibrant green color and healthy growth.
How do I care for Pencil Tree?
Pencil Tree thrives in bright, indirect sunlight; direct sun for several hours is ideal. Water thoroughly only when the soil is completely dry, typically every 2-4 weeks, and less frequently in winter. Use well-draining succulent potting mix to prevent root rot. Maintain temperatures between 65-85°F (18-29°C). Fertilize sparingly during the growing season (spring/summer) with a balanced, diluted succulent fertilizer. Repot every 2-3 years, or when the plant becomes root-bound. Be cautious of the milky sap, which can be irritating to skin and eyes; wear gloves when handling. Avoid overwatering to prevent issues.
How do I propagate Pencil Tree?
Pencil Tree can be easily propagated using stem cuttings. Allow the cut end of the stem to callus over for several days before planting it in well-draining succulent mix. Keep the soil slightly moist until roots develop, which typically takes several weeks. Offsets can be carefully separated from the main plant and planted in their own pots. Leaf cuttings are not a reliable method for Pencil Tree propagation. Always wear gloves when handling cuttings due to the irritating sap. Provide bright, indirect light during the propagation process.
Last updated: April 27, 2026 — Plant care data reviewed and verified by our editorial team.