Typhonium praetermissum Plant Care
Typhonium praetermissum A.Hay
Updated · Sources · How we source care data
Typhonium praetermissum is a species of plant in the arum family that is endemic to the Northern Territory of Australia. In 2022, Hay and others resurrected the genus, Lazarum, and renamed the species as Lazarum praetermissum.
Every 7–10 days
Bright indirect light
65–80°F
50–70%
At a glance
How do you care for Typhonium praetermissum?
Water Typhonium praetermissum every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 65–80°F (18–27°C) and 50–70% humidity. 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 Typhonium praetermissum Native To?
What Is the Typhonium praetermissum?
Typhonium praetermissum (Typhonium praetermissum) belongs to the Araceae family within the Typhonium genus. Typhonium praetermissum is native to the Northern Territory of Australia.
Typhonium praetermissum displays an upright, clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Typhonium praetermissum produces unique spadix flowers with a hooded spathe in various colors.
Leaf size: approximately 8 inches.
How Often Should You Water a Typhonium praetermissum?
Typhonium praetermissum requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Typhonium praetermissum Need?
Typhonium praetermissum thrives in bright indirect light. Avoid placing Typhonium praetermissum in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Typhonium praetermissum Prefer?
Typhonium praetermissum grows best at temperatures of 65–80°F. Typhonium praetermissum prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–80°F
Humidity
50–70%
What Soil Mix Works Best for a Typhonium praetermissum?
Rich, well-draining potting mix with added perlite and peat moss. Good drainage is essential for Typhonium praetermissum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Typhonium praetermissum?
Feed Typhonium praetermissum every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Typhonium praetermissum?
Repot annually in spring to refresh soil and provide space for growth. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Typhonium praetermissum?
Typhonium praetermissum can be propagated through division of rhizomes, offsets, seeds. Similar propagation techniques also apply to typhonium alismifolium plant care, which shares the same genus.
Is the Typhonium praetermissum Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Toxic to humans and pets if ingested
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 Typhonium praetermissum?
Typhonium praetermissum is susceptible to spider mites, aphids, mealybugs. 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 Typhonium praetermissum Need?
Typhonium praetermissum grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Typhonium praetermissum is native to the Northern Territory of Australia. In cooler regions, grow Typhonium praetermissum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Typhonium praetermissum 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 Typhonium genus — compare its care with other Typhonium species on PlantoScan.
Typhonium is part of the Araceae plant family — browse all Araceae genera and species.
Typhonium praetermissum thrives in bright light and direct sun — see other bright-light plants.
More Typhonium Species
Other Typhonium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Typhonium praetermissum A.Hay, family Araceae (first published in Edinburgh J. Bot. 54: 331 (1997)) — World Flora Online record, IPNI name record.
- Pet toxicity: Typhonium praetermissum 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 13b, calculated from the plant's minimum temperature.
- 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.
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