Bells of Ireland Plant Care

Moluccella laevis L.

Updated · Sources · How we source care data

Moluccella laevis, the Bells-of-Ireland, Bells of Ireland, Molucca balmis, shellflower or shell flower, is a summer flowering annual, native to Turkey, Syria and the Caucasus. It is cultivated for its spikes of flowers.

🌿Shrubs🌱Herbs
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

60–80°F

Humidity

40–60%

At a glance

How do you care for Bells of Ireland?

Plant Bells of Ireland in full sun to partial shade (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.

Where Is the Bells of Ireland Native To?

Native range6 countries

What Is the Bells of Ireland?

Bells of Ireland (Moluccella laevis) belongs to the Lamiaceae family within the Moluccella genus. Bells of Ireland is native to Turkey, Syria and the Caucasus. Bells of Ireland is also known as Shellflower, Irish Bells.

Bells of Ireland displays an upright, branching shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Bells of Ireland produces small, tubular green flowers with leafy bracts.

Leaf size: approximately 4 inches.

How Often Should You Water a Bells of Ireland?

Water a young or newly planted Bells of Ireland 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 Bells of Ireland Need?

Bells of Ireland thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Bells of Ireland Prefer?

Moluccella laevis tolerates temperatures of 60–80°F. Bells of Ireland prefers humidity levels of 40–60%.

Temperature

60–80°F

Humidity

40–60%

What Soil Mix Works Best for a Bells of Ireland?

Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Bells of Ireland to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Bells of Ireland?

Feed Bells of Ireland 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 Bells of Ireland?

Choose a spot with full sun to partial shade and well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.

Bells of Ireland 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 Bells of Ireland?

Bells of Ireland can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 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 Bells of Ireland?

Prune Bells of Ireland 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 Bells of Ireland in Winter?

Bells of Ireland 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 Bells of Ireland?

Bells of Ireland can be propagated through seeds, stem cuttings.

Is the Bells of Ireland Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Bells of Ireland, 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 Bells of Ireland?

Bells of Ireland is susceptible to aphids, spider mites, whiteflies. 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 Bells of Ireland Need?

Bells of Ireland grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Bells of Ireland is native to Turkey, Syria and the Caucasus. In cooler regions, grow Bells of Ireland as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Bells of Ireland 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 Moluccella genus — compare its care with other Moluccella species on PlantoScan.

Moluccella is part of the Lamiaceae plant family — browse all Lamiaceae genera and species.

Bells of Ireland 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: Moluccella laevis L., family Lamiaceae (first published in Sp. Pl. : 587 (1753)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Bells of Ireland, 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.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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