Delphinium vs Queensland Umbrella Tree Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Delphinium

Delphinium

Delphinium spp.

VS
Queensland Umbrella Tree

Queensland Umbrella Tree

Schefflera actinophylla

Delphinium

Delphinium

Delphinium spp.

Delphiniums are perennial herbaceous plants known for their tall, striking flower spikes. They typically grow outdoors and are prized for their vibrant blue, purple, pink, and white flowers. The plant has deeply lobed leaves and a robust stem that supports the flower spike. They are not suited for indoor growing due to their high light requirements and size. People grow them in gardens for their aesthetic appeal and to attract pollinators.

Ranunculaceae Northern Hemisphere, including Europe, Asia, and North America
✨ Features: Attracts pollinators (bees and butterflies)
📖 Read Complete Delphinium Guide
Queensland Umbrella Tree

Queensland Umbrella Tree

Schefflera actinophylla

The Queensland Umbrella Tree is a fast-growing evergreen tree in its native habitat, reaching heights of up to 50 feet. It features distinctive compound leaves radiating from a central point, resembling an umbrella. While primarily an outdoor plant, it is sometimes grown indoors as a houseplant, though it requires significant light and space to thrive. People are drawn to its unique foliage and tropical appearance. Indoors, it's unlikely to flower or reach its full potential size. It's known for its ability to attract birds in its natural environment.

Araliaceae Australia (Queensland, Northern Territory), New Guinea, Java
✨ Features: Attractive foliage, air purifying qualities (though not extensively studied)
📖 Read Complete Queensland Umbrella Tree Guide

Quick Plant Comparison

Feature Delphinium Queensland Umbrella Tree
Light Full sun (at least 6 hours of direct sunlight per day) Bright, indirect light to full sun. Requires at least 6 hours of direct sunlight daily for optimal growth.
Watering 2-3 times per week, depending on weather and soil drainage Every 7-14 days, depending on light and temperature
Humidity 40-60% 40-60%
Temperature 15-24°C 18-24°C
Care Level Expert Expert
Growth Rate Moderate Fast
Max Height Not typically grown indoors; outdoors: 0.6-1.8 meters 1.8-3 meters (indoors, rarely exceeds 3m)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining, fertile soil rich in organic matter Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 30 minutes weekly (weeding, watering, deadheading) 30 minutes weekly

🔬 Botanical Information — Comparing These Plants

Delphinium

Scientific Name Delphinium spp.
Family Ranunculaceae
Native To Northern Hemisphere, including Europe, Asia, and North America
Also Known As Larkspur, Delphinium
Leaves The leaves are deeply lobed and palmate, with a coarse texture. They are typically medium to dark green in color and arranged alternately along the stem.
Flowers Delphiniums rarely, if ever, flower indoors. Outdoors, they produce tall, dense spikes of flowers in shades of blue, purple, pink, and white. The flowers have a distinctive spurred shape.

Queensland Umbrella Tree

Scientific Name Schefflera actinophylla
Family Araliaceae
Native To Australia (Queensland, Northern Territory), New Guinea, Java
Also Known As Queensland Umbrella Tree, Octopus Tree, Amate
Leaves Compound leaves with 7-16 leaflets radiating from a central point. Leaflets are oblong to lance-shaped, glossy green, and can grow up to 30cm long. New growth is often a lighter green color.
Flowers Rarely flowers indoors. In its natural habitat, it produces long, drooping racemes of small red flowers.

📏 Size & Growth — Plant Comparison

Delphinium

Height Not typically grown indoors; outdoors: 0.6-1.8 meters
Spread Outdoors: 0.3-0.6 meters
Growth Rate Moderate
Growth Pattern Upright, with tall, sturdy stems that support the flower spikes. The plant forms a basal rosette of leaves from which the flowering stems emerge.

Queensland Umbrella Tree

Height 1.8-3 meters (indoors, rarely exceeds 3m)
Spread 0.9-1.5 meters
Growth Rate Fast
Growth Pattern Upright, tree-like growth habit. It can become quite tall and may require support as it matures. It does not spread aggressively via rhizomes.

🌱 Propagation — Comparing Plant Growth

Delphinium

Methods: Seed, Division, Stem cuttings

Difficulty: Moderate

Tips: Sow seeds in early spring or fall. Divide established plants in spring or fall. Take stem cuttings in late spring.

Queensland Umbrella Tree

Methods: Stem cuttings, Seed

Difficulty: Moderate

Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in moist potting mix. Keep the cutting warm and humid until roots develop.

✨ Benefits & Features — Comparing Plant Value

Delphinium

Delphiniums are known for their towering flower spikes, which can reach impressive heights. The intense blue color of some varieties is particularly striking and relatively rare in the plant world.

  • ✓ Attracts pollinators to the garden
  • ✓ Adds vibrant color and height to flower beds
  • ✓ Provides cut flowers for arrangements
  • ✓ Enhances the aesthetic appeal of outdoor spaces
  • ✓ Can be used in traditional medicine (with caution and expert knowledge)
  • ⚠️ Toxic to pets

Queensland Umbrella Tree

Its distinctive umbrella-like foliage makes it a visually striking plant. It can grow very tall in its natural habitat, but remains smaller indoors. It attracts birds in its native environment.

  • ✓ Adds a tropical aesthetic to your home
  • ✓ Can improve indoor air quality to a small degree
  • ✓ Provides a sense of connection to nature
  • ✓ Can be a rewarding challenge for experienced plant owners
  • ✓ Its unique foliage is visually appealing
  • 🌬️ NASA-verified air purifier
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Delphinium

Repotting Not applicable for indoor growing; for outdoor plants, division may be needed every 3-4 years.
Pruning Deadhead spent flowers to encourage further blooming. Cut back foliage in the fall.
Fertilizing Balanced fertilizer (10-10-10) applied in spring and early summer at half strength
Seasonal Care Spring: Fertilize and provide support for tall flower spikes. Summer: Water regularly and deadhead spent flowers. Fall: Cut back foliage after flowering. Winter: Provide mulch for protection in colder climates.

Queensland Umbrella Tree

Repotting Every 1-2 years, or when the plant becomes root-bound
Pruning Prune regularly to control size and shape. Remove any dead or yellowing leaves.
Fertilizing Balanced liquid fertilizer (20-20-20) diluted to half strength, every 4-6 weeks during the growing season (spring and summer)
Seasonal Care Reduce watering in winter. Increase light exposure during winter months. Resume regular fertilization in spring.

🌞 Light Requirements

Delphinium

Full sun (at least 6 hours of direct sunlight per day)

Low light tolerant: ❌ No

Queensland Umbrella Tree

Bright, indirect light to full sun. Requires at least 6 hours of direct sunlight daily for optimal growth.

Low light tolerant: ❌ No

💧 Watering Needs

Delphinium

Water deeply when the top inch of soil feels dry. Avoid overhead watering to prevent fungal diseases. Overwatering can lead to root rot, indicated by yellowing leaves and a mushy stem. Underwatering results in wilting and dry, crispy leaves.

Queensland Umbrella Tree

Water thoroughly when the top inch of soil is dry. Allow excess water to drain away. Overwatering can lead to root rot, indicated by yellowing leaves and a musty smell. Underwatering results in drooping leaves and dry, crispy edges.

🌡️ Temperature & Humidity

Delphinium

Temperature: 15-24°C

Humidity: 40-60%

Queensland Umbrella Tree

Temperature: 18-24°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Delphinium

Delphinium

Delphinium spp.
Care: Expert Time: 30 minutes weekly (weeding, watering, deadheading) Beginner: No

Gardeners looking to add height and vibrant color to their flower beds.

✅ Choose This Plant If...

  • You want a tall, dramatic flower for your garden.
  • You want to attract pollinators to your yard.
  • You have a sunny garden spot with well-draining soil.
  • You enjoy the classic cottage garden aesthetic.
  • You are an experienced gardener looking for a rewarding challenge.

❌ Skip This Plant If...

  • You have limited sunlight in your home.
  • You have pets or small children who might ingest the plant.
  • You are a beginner gardener looking for an easy-to-grow plant.
📍 Ideal Location: Outdoor garden bed with full sun exposure
🎨 Style: Cottage, Traditional, English Garden
🏠 Apartment Friendly: No
⚠️ Toxic to dogs, cats, and horses. All parts of the plant, especially the seeds, contain toxic alkaloids. Symptoms include gastrointestinal upset, weakness, and potentially cardiac problems.
Queensland Umbrella Tree

Queensland Umbrella Tree

Schefflera actinophylla
Care: Expert Time: 30 minutes weekly Beginner: No

Experienced plant owners with bright, sunny spaces who are willing to commit to regular pruning and pest control.

✅ Choose This Plant If...

  • You have a very bright, sunny room or greenhouse
  • You enjoy pruning and shaping plants
  • You want a tropical-looking plant with unique foliage
  • You are experienced with plant care and pest control
  • You are prepared to repot and provide adequate support as it grows.

❌ Skip This Plant If...

  • You have pets that may ingest the plant
  • You have limited sunlight in your home
  • You are a beginner plant owner
  • You prefer low-maintenance plants
📍 Ideal Location: Sunroom, conservatory, or a room with large, south-facing windows
🎨 Style: Tropical, Bohemian, Modern
🏠 Apartment Friendly: Limited
🌬️ Air Purifying: Yes (NASA verified)
⚠️ Toxic to dogs, cats, and horses. Contains calcium oxalates. Symptoms include oral irritation, excessive drooling, vomiting, and difficulty swallowing. All parts of the plant are toxic.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

📈

Delphinium has moderate growth, while Queensland Umbrella Tree grows fast.

💡 Pro Tips For Comparing These Plants

Delphinium Care Tips

Delphiniums are primarily outdoor plants and are very challenging to grow indoors due to their high light requirements and need for specific temperature and humidity conditions. They require full sun, well-draining soil, and regular fertilization. Indoor cultivation is not recommended.

  • Provide support for tall flower spikes to prevent them from bending or breaking.
  • Deadhead spent flowers regularly to encourage more blooms.
  • Protect from slugs and snails, especially young plants.
  • Ensure good drainage to prevent root rot.
  • Apply a layer of mulch around the base of the plant to retain moisture and suppress weeds.
❄️ Winter: Cut back foliage after flowering. Apply a layer of mulch around the base of the plant to protect the crown from freezing temperatures. In colder climates, consider providing additional winter protection.
☀️ Summer: Water regularly during hot, dry periods. Deadhead spent flowers to encourage more blooms. Provide support for tall flower spikes to prevent them from bending or breaking in strong winds.

Queensland Umbrella Tree Care Tips

The Queensland Umbrella Tree is challenging to grow indoors due to its high light requirements and potential for rapid growth. It needs bright light, consistent watering, and regular fertilization. Pruning is necessary to control its size. Susceptible to pests and root rot if not properly cared for.

  • Provide a support structure, such as a moss pole, as it grows taller
  • Rotate the plant regularly to ensure even growth
  • Wipe the leaves with a damp cloth to remove dust and improve light absorption
  • Monitor regularly for pests and treat promptly
  • Use a well-draining pot with drainage holes to prevent root rot.
❄️ Winter: Reduce watering frequency. Ensure adequate light exposure, even if it means supplementing with artificial light. Avoid placing near drafts or heating vents.
☀️ Summer: Water more frequently during hot weather. Provide adequate ventilation. Protect from intense, direct sunlight during the hottest part of the day to prevent leaf scorch.

⚠️ Common Problems & Solutions — Plant Care Comparison

Delphinium

Common Issues: Powdery mildew, Crown rot, Aphids, Slugs/Snails
Solutions: Powdery mildew: Improve air circulation and apply fungicide. Crown rot: Ensure good drainage and avoid overwatering. Aphids: Spray with insecticidal soap. Slugs/Snails: Use slug bait or handpick.

Queensland Umbrella Tree

Common Issues: Spider mites, scale, root rot, leaf drop
Solutions: Spider mites: Treat with insecticidal soap or neem oil. Scale: Remove manually or treat with horticultural oil. Root rot: Improve drainage and reduce watering. Leaf drop: Increase light and humidity.

❓ Frequently Asked Questions — Comparing These Plants

Delphinium

What are the light requirements for Delphinium?

Delphiniums are sun-loving plants and require at least six hours of direct sunlight daily to flourish. Insufficient light can lead to weak stems, poor flowering, and increased susceptibility to diseases. In hotter climates, some afternoon shade can be beneficial to prevent scorching. When selecting a location, consider the sun’s path and ensure the plants receive ample morning sun. Delphiniums grown in partial shade may still survive, but their blooms will be significantly diminished. If growing indoors, supplement with grow lights to provide the necessary intensity and duration of light. Rotate the plant regularly to ensure even light exposure.

How do I care for Delphinium?

Delphiniums require specific care to thrive. Plant in well-draining soil enriched with organic matter. Full sun (at least 6 hours daily) is crucial for optimal blooming. Water deeply but infrequently, allowing the soil to dry slightly between waterings. Fertilize regularly during the growing season with a balanced fertilizer, switching to a high-phosphorus fertilizer as buds develop to promote abundant blooms. Stake tall varieties to prevent them from collapsing under the weight of their flowers or in windy conditions. Deadhead spent blooms to encourage reblooming. Protect from slugs and snails, which can damage young plants. Provide adequate air circulation to prevent fungal diseases. Mulch around the base of the plant to retain moisture and suppress weeds.

How do I propagate Delphinium?

Delphiniums can be propagated through division, stem cuttings, and seeds. Division involves separating mature clumps in early spring or fall. Carefully dig up the plant and divide the root ball into sections, ensuring each section has healthy roots and shoots. Stem cuttings can be taken in spring. Select healthy, non-flowering stems and cut them into 4-6 inch sections. 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. Seeds can be sown indoors in late winter or early spring. Sow seeds thinly in a seed starting mix and keep them moist and warm. Germination typically takes 2-3 weeks.

Queensland Umbrella Tree

What are the light requirements for Queensland Umbrella Tree?

Queensland Umbrella Trees need bright, indirect light to thrive. A location near an east-facing window is ideal, providing gentle morning sun. West or south-facing windows can also work, but be sure to diffuse the light with a sheer curtain to prevent leaf burn. Insufficient light can lead to leggy growth and pale leaves. Rotate the plant regularly to ensure even light exposure on all sides. If natural light is limited, consider using a grow light to supplement. Avoid placing the plant in dark corners or areas with no natural light, as this will negatively impact its growth and overall health.

How do I care for Queensland Umbrella Tree?

The Queensland Umbrella Tree thrives in bright, indirect light; direct sunlight can scorch its leaves. Water when the top inch of soil feels dry to the touch, ensuring the pot has adequate drainage to prevent root rot. Maintain a humidity level of 40-60%; misting the leaves regularly or using a humidifier can help. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Repot every 1-2 years, or when the plant becomes root-bound, using a well-draining potting mix. Prune to maintain shape and size, removing any dead or yellowing leaves. Maintain temperatures between 65-75°F (18-24°C). Avoid sudden temperature changes and drafts. Regularly check for pests like spider mites and mealybugs and treat accordingly.

How do I propagate Queensland Umbrella Tree?

Queensland Umbrella Trees can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem, 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. For air layering, make a small incision on a stem, wrap it with moist sphagnum moss, and cover it with plastic wrap. Once roots develop, cut the stem below the moss and plant it in a pot. Both methods require warmth and humidity to be successful. Rooting can take several weeks to months. Use a rooting hormone to improve the chances of successful propagation. Maintain consistent moisture and avoid direct sunlight during the rooting process.

Last updated: May 1, 2026 — Plant care data reviewed and verified by our editorial team.