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Monstera Adansonii vs. Deliciosa: Key Differences in Care

Mike Ehrmantraut
2025-04-14 16:09:55

1. Leaf Structure and Appearance

The Monstera Adansonii and Monstera Deliciosa differ significantly in leaf morphology. Adansonii leaves are smaller, typically 10–20 cm long, with a more elongated, heart-shaped form and pronounced fenestrations (holes) that often extend to the leaf edges. In contrast, Deliciosa leaves are much larger (up to 90 cm in mature plants), with broader, deeply lobed splits (not just holes) and a glossy, leathery texture. Deliciosa’s fenestrations develop as the plant matures, while Adansonii’s holes appear earlier in growth.

2. Growth Habit and Size

Adansonii is a vining plant, growing rapidly with a trailing or climbing habit, making it ideal for hanging baskets or trellises. It can reach 3–5 meters indoors. Deliciosa, however, is a heavier, upright grower, developing thick, woody stems and aerial roots that require sturdy support. Indoors, it can grow up to 3 meters tall and wide, demanding more space. Both are climbers in their natural habitat, but Deliciosa’s growth is more structural and less flexible.

3. Light Requirements

Adansonii thrives in bright, indirect light but tolerates lower light better than Deliciosa, which may lose fenestrations in dim conditions. Deliciosa demands consistent bright, filtered light to maintain its iconic split leaves. Direct sun can scorch both plants, but Deliciosa is slightly more sensitive due to its larger leaf surface area.

4. Watering Needs

Adansonii prefers moist but well-draining soil and is more drought-tolerant, recovering quickly from slight underwatering. Deliciosa, with its thicker roots and larger leaves, requires more frequent watering but is prone to root rot if overwatered. Both benefit from reduced watering in winter, but Deliciosa’s soil should dry slightly deeper between waterings.

5. Humidity Preferences

Adansonii adapts well to average household humidity (40–50%), though it thrives in higher levels. Deliciosa, native to humid tropical forests, prefers 60%+ humidity and may develop brown leaf edges in dry air. A pebble tray or humidifier is more critical for Deliciosa’s health.

6. Soil and Fertilization

Both plants need airy, chunky soil mixes (e.g., peat, perlite, orchid bark), but Deliciosa benefits from a richer mix due to its faster growth. Fertilize Adansonii monthly in growing season with a balanced liquid fertilizer diluted to half strength. Deliciosa, being heavier feeders, may require biweekly fertilization at full strength during peak growth.

7. Temperature Tolerance

Adansonii tolerates a wider temperature range (15–30°C), while Deliciosa is more sensitive to cold, suffering below 18°C. Both dislike drafts, but Deliciosa’s larger leaves make it more vulnerable to temperature fluctuations.

8. Pruning and Maintenance

Adansonii requires regular pruning to control its vining growth and encourage bushiness. Deliciosa needs selective pruning of damaged or overcrowded leaves to maintain airflow. Its aerial roots should be guided to a moss pole or trimmed if unruly.

9. Propagation Ease

Adansonii propagates effortlessly from stem cuttings with a node, rooting quickly in water or soil. Deliciosa also propagates via stem cuttings but is slower to root and may require higher humidity during the process.

10. Pest Susceptibility

Both attract spider mites and mealybugs, but Adansonii’s thinner leaves make it slightly more prone to infestations. Deliciosa’s thicker foliage is more resistant, though its large leaves can harbor pests in crevices. Regular wiping with neem oil helps both.

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