Sandown Lily Plant Care

Romulea bulbocodium (L.) Sebast. & Mauri

Updated · Sources · How we source care data

Romulea bulbocodium is one of the best-known species from the genus Romulea. The plant, a member of the family Iridaceae, is native to the Mediterranean region and Sudan.

🌼Perennials🧅Bulbs & Tubers
Water

Every 7–10 days

Light

Full sun to partial shade

Temp

50–80°F

Humidity

40–60%

At a glance

How do you care for Sandown Lily?

Plant Sandown Lily in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 50–80°F (10–27°C). Fertilize it every 6 months during the growing season.

Where Is the Sandown Lily Native To?

Native range19 countries

What Is the Sandown Lily?

Sandown Lily (Romulea bulbocodium) belongs to the Iridaceae family within the Romulea genus. Sandown Lily is native to the Mediterranean region and Sudan. Sandown Lily is also known as Onion Lily, Spring Crocus.

Sandown Lily displays a low rosette, clumping growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Sandown Lily produces small star-shaped flowers in various colors.

Leaf size: approximately 6 inches.

How Often Should You Water a Sandown Lily?

Water a young or newly planted Sandown Lily 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 Sandown Lily Need?

Sandown Lily thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Sandown Lily Prefer?

Romulea bulbocodium tolerates temperatures of 50–80°F. Sandown Lily prefers humidity levels of 40–60%.

Temperature

50–80°F

Humidity

40–60%

What Soil Mix Works Best for a Sandown Lily?

Well-draining sandy soil with added organic matter like compost. Good drainage is essential for Sandown Lily to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Sandown Lily?

Feed Sandown Lily 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 Sandown Lily?

Choose a spot with full sun to partial shade and well-draining sandy soil with added organic matter like compost. Avoid low spots where water collects after rain.

Sandown Lily is suited to USDA Zone 12a.

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 Sandown Lily?

Sandown Lily can spread to about 1 ft (0.2 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.2 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 Sandown Lily?

Prune Sandown Lily 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 Sandown Lily in Winter?

Sandown Lily is frost-tender (hardy to USDA zone 12). 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 Sandown Lily?

Sandown Lily can be propagated through by seeds or division of offsets. Similar propagation techniques also apply to columna's romulea plant care, which shares the same genus.

Is the Sandown Lily Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Sandown Lily, 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 Sandown Lily?

Sandown Lily is susceptible to aphids, thrips, 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 Sandown Lily Need?

Sandown Lily grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Sandown Lily is native to the Mediterranean region and Sudan. In cooler regions, grow Sandown Lily as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Sandown Lily 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 Romulea genus — compare its care with other Romulea species on PlantoScan.

Romulea is part of the Iridaceae plant family — browse all Iridaceae genera and species.

Sandown Lily thrives in bright light and direct sun — see other bright-light plants.

More Romulea Species

Other Romulea species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Romulea bulbocodium (L.) Sebast. & Mauri, family Iridaceae (first published in Florae Romanae Prodromus 1818) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Sandown Lily, 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 12a, 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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