Hedlundia scannelliana Plant Care
Hedlundia scannelliana (T.C.G.Rich) Sennikov & Kurtto
Updated · Sources · How we source care data
Hedlundia scannelliana, commonly known as Scannell's whitebeam, is a species of shrub or tree endemic to Ross Island near Killarney in southwest Ireland. It is one of the rarest tree species in the world; only five individual plants are known.
Every 7–10 days
Partial to full sun
60–75°F
40–60%
At a glance
How do you care for Hedlundia scannelliana?
Plant Hedlundia scannelliana in partial to full sun (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–75°F (16–24°C). Fertilize it every 6 months during the growing season.
Where Is the Hedlundia scannelliana Native To?
What Is the Hedlundia scannelliana?
Hedlundia scannelliana (Hedlundia scannelliana) belongs to the Rosaceae family within the Hedlundia genus. Hedlundia scannelliana is native to Ross Island near Killarney in southwest Ireland.
Hedlundia scannelliana displays a compact, mounding shrub growth habit, reaching up to 2.5 ft tall with a spread of approximately 3 ft. Hedlundia scannelliana produces small, fragrant white flowers in clusters.
Leaf size: approximately 4 inches.
How Often Should You Water a Hedlundia scannelliana?
Water a young or newly planted Hedlundia scannelliana 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 Hedlundia scannelliana Need?
Hedlundia scannelliana thrives in partial to full sun.
Light Requirement
Partial to full sun
What Temperature and Humidity Does the Hedlundia scannelliana Prefer?
Hedlundia scannelliana tolerates temperatures of 60–75°F. Hedlundia scannelliana prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Hedlundia scannelliana?
Rich, well-draining loamy soil with added compost for nutrients. Good drainage is essential for Hedlundia scannelliana to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Hedlundia scannelliana?
Feed Hedlundia scannelliana 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 Hedlundia scannelliana?
Choose a spot with partial to full sun and rich, well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.
Hedlundia scannelliana is suited to USDA Zone 13a.
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 Hedlundia scannelliana?
Hedlundia scannelliana can spread to about 3 ft (0.9 m) and reach about 3 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 Hedlundia scannelliana?
Prune Hedlundia scannelliana 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 Hedlundia scannelliana in Winter?
Hedlundia scannelliana 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 Hedlundia scannelliana?
Hedlundia scannelliana can be propagated through seeds, division of offsets, stem cuttings. Similar propagation techniques also apply to hedlundia arranensis plant care, which shares the same genus.
Is the Hedlundia scannelliana Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Hedlundia scannelliana, 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 Hedlundia scannelliana?
Hedlundia scannelliana is susceptible to aphids, spider mites, 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 Hedlundia scannelliana Need?
Hedlundia scannelliana grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Hedlundia scannelliana is native to Ross Island near Killarney in southwest Ireland. In cooler regions, grow Hedlundia scannelliana as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Hedlundia scannelliana 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 Hedlundia genus — compare its care with other Hedlundia species on PlantoScan.
Hedlundia is part of the Rosaceae plant family — browse all Rosaceae genera and species.
Hedlundia scannelliana thrives in bright light and direct sun — see other bright-light plants.
More Hedlundia Species
Other Hedlundia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Hedlundia scannelliana (T.C.G.Rich) Sennikov & Kurtto, family Rosaceae (first published in Memoranda Soc. Fauna Fl. Fenn. 93: 36 (2017)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Hedlundia scannelliana, 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 13a, 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.
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