Adam's Adam's Needle Plant Care
Thaumatophyllum adamantinum (Mart. ex Schott) Sakur., Calazans & Mayo
Updated · Sources · How we source care data
Philodendron adamantinum, synonym Thaumatophyllum adamantinum, is a plant in the genus Philodendron, in the family Araceae. It is native to South America, namely to Southeast Brazil, but is also cultivated as a houseplant in cooler climates.
Every 7–10 days
Bright indirect to low light
65–80°F
60–80%
At a glance
How do you care for Adam's Adam's Needle?
Plant Adam's Adam's Needle in bright indirect to low light (USDA zones 9b–11b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 65–80°F (18–27°C). Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the Adam's Adam's Needle Native To?
What Is the Adam's Adam's Needle?
Adam's Adam's Needle (Thaumatophyllum adamantinum) belongs to the Araceae family within the Thaumatophyllum genus. Adam's Adam's Needle is native to South America, namely to Southeast Brazil.
Adam's Adam's Needle displays a large, upright foliage plant growth habit, reaching up to 4 ft tall with a spread of approximately 3 ft. Adam's Adam's Needle produces rarely flowers indoors, produces a spadix surrounded by a spathe.
Leaf size: approximately 12 inches.
How Often Should You Water a Adam's Adam's Needle?
Water a young or newly planted Adam's Adam's Needle every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Adam's Adam's Needle Need?
Adam's Adam's Needle thrives in bright indirect to low light. Avoid placing Adam's Adam's Needle in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to low light
What Temperature and Humidity Does the Adam's Adam's Needle Prefer?
Thaumatophyllum adamantinum tolerates temperatures of 65–80°F. Adam's Adam's Needle prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–80°F
Humidity
60–80%
What Soil Mix Works Best for a Adam's Adam's Needle?
Well-draining peat-based mix with perlite and orchid bark. Good drainage is essential for Adam's Adam's Needle to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Adam's Adam's Needle?
Feed Adam's Adam's Needle every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Adam's Adam's Needle?
Choose a spot with bright indirect to low light and well-draining peat-based mix with perlite and orchid bark. Avoid low spots where water collects after rain.
Adam's Adam's Needle is suited to USDA Zone 9b – 11b.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Adam's Adam's Needle?
Adam's Adam's Needle can spread to about 3 ft (0.9 m) and reach about 4 ft (1 m) tall. Space plants about 3 ft (0.9 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Adam's Adam's Needle?
Prune Adam's Adam's Needle while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Adam's Adam's Needle in Winter?
Adam's Adam's Needle is frost-tender (hardy to USDA zone 9). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Adam's Adam's Needle?
Adam's Adam's Needle can be propagated through division, air layering, stem cuttings. Similar propagation techniques also apply to hope philodendron plant care, which shares the same genus.
Is the Adam's Adam's Needle Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Adam's Adam's Needle?
Adam's Adam's Needle is susceptible to spider mites, aphids, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Adam's Adam's Needle Need?
Adam's Adam's Needle grows outdoors in USDA Zone 9b – 11b. It survives winters down to planting zone 9b. Adam's Adam's Needle is native to South America, namely to Southeast Brazil. In cooler regions, grow Adam's Adam's Needle as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 9b – 11b
Keep exploring plants
Adam's Adam's Needle is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Thaumatophyllum genus — compare its care with other Thaumatophyllum species on PlantoScan.
Thaumatophyllum is part of the Araceae plant family — browse all Araceae genera and species.
Adam's Adam's Needle copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Thaumatophyllum adamantinum (Mart. ex Schott) Sakur., Calazans & Mayo, family Araceae (first published in PhytoKeys 98: 59. 2018 [2 May 2018] [epublished]) — World Flora Online record, IPNI name record.
- Pet toxicity: Adam's Adam's Needle is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 9b – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
