Pygmy Burhead Plant Care

Helanthium tenellum (Mart. ex Schult.f.) Britton

Updated · Sources · How we source care data

Helanthium tenellum, the pygmy chain sword, is a species of plants in the Alismataceae. It is native to the eastern United States, southern Mexico, West Indies, Central America, South America

💧Aquatic Plants
Water

Every 7–10 days

Light

Medium to high indirect light

Temp

65–80°F

Humidity

50–70%

At a glance

How do you care for Pygmy Burhead?

Plant Pygmy Burhead in medium to high indirect light (USDA zones 13b) 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 4 months during the growing season.

Where Is the Pygmy Burhead Native To?

Native range44 countries

What Is the Pygmy Burhead?

Pygmy Burhead (Helanthium tenellum) belongs to the Alismataceae family within the Helanthium genus. Pygmy Burhead is native to the eastern United States, southern Mexico, West Indies, Central America, South America. Pygmy Burhead is also known as Narrowleaf Pygmy Burhead.

Pygmy Burhead displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Pygmy Burhead produces small white flowers on tall stalks.

Leaf size: approximately 6 inches.

How Often Should You Water a Pygmy Burhead?

Water a young or newly planted Pygmy Burhead 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 Pygmy Burhead Need?

Pygmy Burhead thrives in medium to high indirect light. Avoid placing Pygmy Burhead in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Medium to high indirect light

What Temperature and Humidity Does the Pygmy Burhead Prefer?

Helanthium tenellum tolerates temperatures of 65–80°F. Pygmy Burhead 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 Pygmy Burhead?

Rich, loamy soil with good drainage. Good drainage is essential for Pygmy Burhead to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Pygmy Burhead?

Feed Pygmy Burhead every 4 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 4 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 Pygmy Burhead?

Choose a spot with medium to high indirect light and rich, loamy soil with good drainage. Avoid low spots where water collects after rain.

Pygmy Burhead is suited to USDA Zone 13b.

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 Pygmy Burhead?

Pygmy Burhead can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 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 Pygmy Burhead?

Prune Pygmy Burhead 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 Pygmy Burhead in Winter?

Pygmy Burhead is frost-tender (hardy to USDA zone 13). 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 Pygmy Burhead?

Pygmy Burhead can be propagated through division, rhizome cuttings. Similar propagation techniques also apply to bolivian sword plant plant care, which shares the same genus.

Is the Pygmy Burhead Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Pygmy Burhead, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

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 Pygmy Burhead?

Pygmy Burhead is susceptible to aphids, spider mites. 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 Pygmy Burhead Need?

Pygmy Burhead grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Pygmy Burhead is native to the eastern United States, southern Mexico, West Indies, Central America, South America. In cooler regions, grow Pygmy Burhead as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13b

Keep exploring plants

Pygmy Burhead 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 Helanthium genus — compare its care with other Helanthium species on PlantoScan.

Helanthium is part of the Alismataceae plant family — browse all Alismataceae genera and species.

Pygmy Burhead thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Helanthium tenellum (Mart. ex Schult.f.) Britton, family Alismataceae (first published in Man. Fl. N. States , ed. 2: 54 (1905)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Pygmy Burhead, so we can't confirm whether it is safe for cats and dogs. 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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