Aster vs Mother of Thousands Plant Comparison

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

Aster

Aster

Aster spp.

VS
Mother of Thousands

Mother of Thousands

Kalanchoe daigremontiana

Aster

Aster

Aster spp.

Asters are primarily late-summer and fall-blooming perennials, known for their daisy-like flowers in various shades of purple, pink, blue, and white. They are herbaceous plants, meaning they die back to the ground in winter and re-emerge in spring. Asters are popular garden plants, providing a burst of color when many other flowers are fading. They attract pollinators like bees and butterflies. While some species are more compact, others can be quite tall and spreading. Asters are generally outdoor plants and struggle indoors due to high light requirements and dormancy needs.

Asteraceae North America and Eurasia
✨ Features: Attracts pollinators, provides late-season color
📖 Read Complete Aster Guide
Mother of Thousands

Mother of Thousands

Kalanchoe daigremontiana

Mother of Thousands is a succulent perennial characterized by its prolific production of plantlets along the margins of its leaves. It features lance-shaped, fleshy leaves that are typically grey-green with purple blotches on the underside. These plantlets readily detach and root, leading to rapid spread. While primarily grown outdoors in warm climates, it's sometimes kept as a houseplant for its unique appearance and ease of propagation. However, its invasive potential and toxicity should be carefully considered. It is not naturally an indoor plant and requires specific conditions to thrive indoors.

Crassulaceae Madagascar
✨ Features: Prolific plantlet production, drought tolerance
📖 Read Complete Mother of Thousands Guide

Quick Plant Comparison

Feature Aster Mother of Thousands
Light Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth and plantlet production.
Watering Outdoors: Every 7-10 days, depending on weather and soil drainage. Indoors (not recommended): Much less frequent, allow soil to dry significantly between waterings. Every 2-3 weeks, depending on environmental conditions and pot size.
Humidity 40-60% 20-40%
Temperature 15-25°C 18-24°C
Care Level Expert Moderate
Growth Rate Moderate To Fast, Some Species Can Be Aggressive Spreaders Via Rhizomes Fast
Max Height Outdoors: 30cm - 1.5m depending on species. Indoors: Unlikely to thrive, but if attempted, expect significantly smaller size. 0.3-1 meter (indoors)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-drained, loamy soil. A mix of garden soil, compost, and perlite is suitable. Well-draining succulent or cactus mix
Beginner Friendly ❌ No With Caution
Weekly Maintenance 15-30 minutes weekly (weeding, watering, deadheading) 10 minutes weekly

🔬 Botanical Information — Comparing These Plants

Aster

Scientific Name Aster spp.
Family Asteraceae
Native To North America and Eurasia
Also Known As Aster, Michaelmas Daisy, Starwort
Leaves Aster leaves are typically lance-shaped to oval, with a slightly rough texture. The color is usually green, but can vary depending on the species. The size of the leaves ranges from small to medium.
Flowers Asters produce daisy-like flowers with a central disc and ray petals. The flower colors range from purple, pink, blue, and white. They bloom profusely in late summer and fall.

Mother of Thousands

Scientific Name Kalanchoe daigremontiana
Family Crassulaceae
Native To Madagascar
Also Known As Mother of Thousands, Alligator Plant, Mexican Hat Plant, Devil's Backbone
Leaves Lance-shaped, fleshy leaves that are typically grey-green with purple blotches on the underside. The leaf margins are serrated and produce numerous tiny plantlets.
Flowers Rarely flowers indoors. When it does flower, it produces clusters of small, bell-shaped flowers that are typically pink or orange.

📏 Size & Growth — Plant Comparison

Aster

Height Outdoors: 30cm - 1.5m depending on species. Indoors: Unlikely to thrive, but if attempted, expect significantly smaller size.
Spread 30cm - 1m, depending on species. Some spread aggressively via rhizomes.
Growth Rate Moderate To Fast, Some Species Can Be Aggressive Spreaders Via Rhizomes
Growth Pattern Asters typically grow upright, forming bushy clumps. Some species spread via rhizomes, creating colonies of plants. The height and spread vary depending on the species and cultivar.

Mother of Thousands

Height 0.3-1 meter (indoors)
Spread 0.3-0.6 meters (indoors), aggressive spreader
Growth Rate Fast
Growth Pattern Grows upright with a single stem, but can become sprawling as it matures and produces plantlets. The plantlets drop and root, leading to a colony of new plants around the base.

🌱 Propagation — Comparing Plant Growth

Aster

Methods: Seed, stem cuttings, division

Difficulty: Easy To Moderate

Tips: Divide established clumps in spring or fall. Take stem cuttings in late spring or early summer. Sow seeds indoors 6-8 weeks before the last frost.

Mother of Thousands

Methods: Plantlets, Leaf cuttings

Difficulty: Easy

Tips: Simply detach the plantlets from the leaves and place them on top of well-draining soil. Keep the soil slightly moist until roots develop. Leaf cuttings can also be used, allowing the cut end to callous over before planting.

✨ Benefits & Features — Comparing Plant Value

Aster

Asters are known for their late-season blooms, providing color when many other flowers have faded. They are also important food sources for pollinators preparing for winter. Some species are aggressive spreaders, forming large colonies over time.

  • ✓ Attracts pollinators to your garden.
  • ✓ Provides late-season color and extends the blooming season.
  • ✓ Relatively low-maintenance once established.
  • ✓ Can be used as cut flowers.
  • ✓ Adds a natural and wild aesthetic to the landscape.
  • ⚠️ Toxic to pets

Mother of Thousands

The most unique characteristic is the production of numerous plantlets along the leaf margins, which readily detach and root, leading to rapid propagation. The plant's ability to thrive in arid conditions and its distinctive appearance make it a popular choice for succulent enthusiasts.

  • ✓ Unique aesthetic appeal
  • ✓ Easy propagation for sharing with friends
  • ✓ Drought tolerance reduces watering needs
  • ✓ Interesting conversation starter
  • ✓ Can be used in succulent arrangements
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Aster

Repotting Not applicable for outdoor plants. If grown in containers (not recommended), repot every 1-2 years or as needed if root-bound, especially if a rhizomatous species.
Pruning Deadhead spent flowers to encourage more blooms. Cut back to the ground in late fall or early spring.
Fertilizing Balanced slow-release fertilizer in spring. A liquid fertilizer can be applied monthly during the growing season at half strength.
Seasonal Care Spring: Divide plants if needed, fertilize. Summer: Water regularly, deadhead spent flowers. Fall: Enjoy the blooms, cut back after flowering. Winter: Dormancy, minimal watering.

Mother of Thousands

Repotting Every 1-2 years, or as needed when the plant becomes root-bound. Consider repotting more frequently if plant is spreading aggressively.
Pruning Remove dead or damaged leaves. Prune to control size and shape.
Fertilizing Balanced liquid fertilizer diluted to half strength, applied once in spring and once in summer.
Seasonal Care Reduce watering in winter during dormancy. Provide bright light year-round.

🌞 Light Requirements

Aster

Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering.

Low light tolerant: ❌ No

Mother of Thousands

Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth and plantlet production.

Low light tolerant: ❌ No

💧 Watering Needs

Aster

Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Asters prefer consistently moist but well-drained soil. Signs of underwatering include wilting leaves and dry, crispy edges. Overwatering symptoms include yellowing leaves and a soggy soil.

Mother of Thousands

Water thoroughly when the soil is dry to the touch. Allow the soil to dry out completely between waterings to prevent root rot. Overwatering is a common problem. Signs of underwatering include shriveled leaves; overwatering includes soft, mushy leaves.

🌡️ Temperature & Humidity

Aster

Temperature: 15-25°C

Humidity: 40-60%

Mother of Thousands

Temperature: 18-24°C

Humidity: 20-40%

🤔 Which Plant Is Right For You?

Aster

Aster

Aster spp.
Care: Expert Time: 15-30 minutes weekly (weeding, watering, deadheading) Beginner: No

Gardeners looking for late-season color and pollinator-attracting plants.

✅ Choose This Plant If...

  • You want a burst of color in your garden in late summer and fall.
  • You want to attract pollinators like bees and butterflies to your yard.
  • You have a sunny garden space with well-drained soil.
  • You are looking for a relatively low-maintenance perennial for outdoor planting.
  • You enjoy cut flowers and want to add asters to your bouquets.

❌ Skip This Plant If...

  • You have limited sunlight indoors and cannot provide at least 6 hours of direct sun.
  • You have pets that might ingest the plant, as it is toxic to dogs, cats, and horses.
  • You are looking for a plant that thrives indoors with minimal effort.
📍 Ideal Location: Outdoor garden or flower bed with full sun exposure.
🎨 Style: Cottage, Traditional, Naturalistic
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Asters are toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, and skin irritation. The entire plant is considered toxic.
Mother of Thousands

Mother of Thousands

Kalanchoe daigremontiana
Care: Moderate Time: 10 minutes weekly Beginner: With-caution

Experienced plant owners who want a unique and easily propagated succulent, and who can provide adequate light and keep it away from pets.

✅ Choose This Plant If...

  • You want a plant that is easy to propagate.
  • You are fascinated by unique plant adaptations.
  • You have a very bright, sunny location.
  • You want a drought-tolerant plant.
  • You enjoy watching plants develop and spread rapidly.

❌ Skip This Plant If...

  • You have pets that might ingest it.
  • You are prone to overwatering plants.
  • You don't have a very sunny location.
  • You want a low-maintenance plant that doesn't require much attention.
  • You live in an area where it is considered an invasive species.
📍 Ideal Location: South-facing window or sunroom
🎨 Style: Bohemian, Desert, Eclectic
🏠 Apartment Friendly: Limited
⚠️ All parts of the plant are toxic to dogs, cats, and horses. Contains bufadienolide cardiac glycosides. Symptoms include vomiting, diarrhea, abnormal heart rhythm, and weakness.

🎯 Quick Verdict

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

⚡ Key Differences Between These Plants

🎯

Aster is rated Expert care level, while Mother of Thousands is Moderate.

📈

Aster has moderate to fast, some species can be aggressive spreaders via rhizomes growth, while Mother of Thousands grows fast.

💡 Pro Tips For Comparing These Plants

Aster Care Tips

Asters are primarily outdoor plants that require full sun and well-drained soil. They are not well-suited for indoor growing due to their high light requirements and dormancy needs. Indoor attempts will likely result in leggy growth and poor flowering. Regular deadheading encourages more blooms.

  • Provide full sun for optimal flowering.
  • Ensure well-drained soil to prevent root rot.
  • Deadhead spent flowers regularly to encourage more blooms.
  • Divide plants every few years to prevent overcrowding.
  • Monitor for pests and diseases and treat promptly.
❄️ Winter: Cut back the plants to the ground after flowering. Apply a layer of mulch to protect the roots during winter. Minimal watering is needed during dormancy.
☀️ Summer: Water regularly during hot, dry weather. Deadhead spent flowers to encourage more blooms. Monitor for pests and diseases.

Mother of Thousands Care Tips

Mother of Thousands is relatively easy to care for, but requires bright light and well-draining soil. Overwatering is a common issue. Its invasive nature and toxicity to pets should be considered. It may struggle indoors without sufficient light.

  • Provide well-draining soil to prevent root rot.
  • Ensure bright, direct sunlight for optimal growth.
  • Allow soil to dry completely between waterings.
  • Monitor for pests and treat promptly.
  • Remove plantlets regularly to control spread.
❄️ Winter: Reduce watering significantly during the winter months as the plant's growth slows down. Ensure the plant still receives bright light.
☀️ Summer: Provide adequate ventilation to prevent overheating. Water more frequently during the summer growing season, but still allow the soil to dry out between waterings.

⚠️ Common Problems & Solutions — Plant Care Comparison

Aster

Common Issues: Powdery mildew, aster yellows, aphids, spider mites
Solutions: Powdery mildew: Improve air circulation and apply a fungicide. Aster yellows: Remove and destroy infected plants. Aphids/Spider mites: Insecticidal soap or neem oil.

Mother of Thousands

Common Issues: Root rot, etiolation (leggy growth), mealybugs, scale
Solutions: Root rot: Improve drainage and reduce watering frequency. Etiolation: Provide more light. Mealybugs/Scale: Treat with insecticidal soap or neem oil.

❓ Frequently Asked Questions — Comparing These Plants

Aster

What are the light requirements for Aster?

Asters are sun-loving plants and require at least 6-8 hours of direct sunlight per day to thrive and produce abundant blooms. Insufficient light can lead to leggy growth, reduced flowering, and weaker stems. When growing asters indoors, place them near a sunny window that receives ample sunlight. If natural light is limited, supplement with grow lights to ensure they receive adequate illumination. Rotate the plants regularly to ensure even light exposure on all sides. Avoid placing them in overly shaded areas, as this can hinder their growth and flowering potential. Southern or western exposure is ideal.

How do I care for Aster?

Asters thrive in well-draining soil and require regular watering, especially during dry periods. Aim to keep the soil consistently moist but not waterlogged. Fertilize regularly during the growing season with a balanced fertilizer to encourage abundant blooms. Deadhead spent flowers to promote continued flowering. Provide support for taller varieties to prevent them from flopping over. Asters prefer full sun, but some varieties can tolerate partial shade. Monitor for pests and diseases, and treat accordingly. Proper air circulation is important to prevent fungal issues. Prune back in late fall or early spring to maintain shape and vigor. Provide 6-8 hours of direct sunlight daily.

How do I propagate Aster?

Asters can be propagated by division, stem cuttings, or seeds.

Mother of Thousands

What are the light requirements for Mother of Thousands?

Mother of Thousands needs bright, indirect sunlight to thrive. Insufficient light can lead to etiolation, where the plant becomes leggy and the leaves lose their vibrant color. An east or west-facing window is typically ideal, providing ample sunlight without being too harsh.

How do I care for Mother of Thousands?

Mother of Thousands thrives in bright, indirect sunlight, requiring at least 6 hours daily. Overwatering is a common issue; allow the soil to dry out completely between waterings. Use a well-draining succulent or cactus mix to prevent root rot. Water thoroughly when the soil is dry, ensuring excess water drains away.

How do I propagate Mother of Thousands?

Mother of Thousands is incredibly easy to propagate. The most common method involves using the plantlets that grow along the leaf edges. Gently detach these plantlets and place them on top of well-draining succulent mix. Keep the soil lightly moist until they root, which usually takes a few weeks.

Last updated: April 26, 2026 — Plant care data reviewed and verified by our editorial team.