White Sweet Clover (Melilotus albus)

Image: AI generated

White Sweet Clover Plant Care

Melilotus albus Medik.

Updated · Sources · How we source care data

Melilotus albus, known as honey clover, white melilot (UK), Bokhara clover (Australia), white sweetclover (US), and sweet clover, is a nitrogen-fixing legume in the family Fabaceae. Melilotus albus is considered a valuable honey plant and source of nectar and is often grown for forage.

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Water

Every 4–7 days

Light

Full sun

Temp

60–85°F

Humidity

40–70%

At a glance

How do you care for White Sweet Clover?

Plant White Sweet Clover in full sun (USDA zones 2a–9b) and water a young shrub every 4–7 days until it is established. It tolerates temperatures of 60–85°F (16–29°C). Fertilize it every 6 months during the growing season.

What Is the White Sweet Clover?

White Sweet Clover (Melilotus albus) belongs to the Fabaceae family within the Melilotus genus. White Sweet Clover is also known as White Clover, Sweet Clover, Melilot.

White Sweet Clover displays an upright, bushy shrub growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. White Sweet Clover produces small clustered yellow flowers.

Leaf size: approximately 2 inches.

How Often Should You Water a White Sweet Clover?

Water a young or newly planted White Sweet Clover every 4–7 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 4–7 days

Until established; then in dry spells

What Light Does the White Sweet Clover Need?

White Sweet Clover thrives in full sun.

Light Requirement

Full sun

What Temperature and Humidity Does the White Sweet Clover Prefer?

Melilotus albus tolerates temperatures of 60–85°F. White Sweet Clover prefers humidity levels of 40–70%.

Temperature

60–85°F

Humidity

40–70%

What Soil Mix Works Best for a White Sweet Clover?

Well-draining loamy soil with good organic content. Good drainage is essential for White Sweet Clover to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a White Sweet Clover?

Feed White Sweet Clover 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 White Sweet Clover?

Choose a spot with full sun and well-draining loamy soil with good organic content. Avoid low spots where water collects after rain.

White Sweet Clover is suited to USDA Zone 2a – 9b.

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 White Sweet Clover?

White Sweet Clover can spread to about 2 ft (0.5 m) and reach about 2 ft (1 m) tall. Space plants about 2 ft (0.5 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 White Sweet Clover?

Prune White Sweet Clover 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 White Sweet Clover in Winter?

White Sweet Clover is hardy down to USDA zone 2a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

How Do You Propagate a White Sweet Clover?

White Sweet Clover can be propagated through seeds. Similar propagation techniques also apply to yellow sweet clover plant care, which shares the same genus.

Is the White Sweet Clover Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list White Sweet Clover, 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 White Sweet Clover?

White Sweet Clover is susceptible to aphids, leafhoppers, grasshoppers. 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 White Sweet Clover Need?

White Sweet Clover grows outdoors in USDA Zone 2a – 9b. It survives winters down to planting zone 2a.

Hardiness Zone

Zone 2a – 9b

Keep exploring plants

White Sweet Clover 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 Melilotus genus — compare its care with other Melilotus species on PlantoScan.

Melilotus is part of the Fabaceae plant family — browse all Fabaceae genera and species.

White Sweet Clover thrives in bright light and direct sun — see other bright-light plants.

More Melilotus Species

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

Sources

  • Scientific name & taxonomy: Melilotus albus Medik., family Fabaceae (first published in Vorles. Churpfälz. Phys.-Ökon. Ges. 2: 382 (1787)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list White Sweet Clover, 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.
  • Photo: AI-generated illustration (labelled on the image).
  • Hardiness zone: USDA Zone 2a – 9b, estimated from the plant's typical growing conditions.
  • 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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