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Late-flowering ornamental bulb
Amaryllidaceae
Fragrant bulb for large containers
Van Noort
Belladonna lily
Amaryllis belladonna
Belladonna lily is a South African bulbous perennial producing a bare 75 cm stem crowned by several fragrant pink flowers in late summer. The Van Noort size 16/18 bulb grows in full sun in a large pot filled with light, sharply drained mix. Keep the neck visible, water moderately, and protect the plant from frost. Strap-shaped leaves feed the bulb during another stage of its cycle and must never be removed while green.
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Discover the plant
Common nameBelladonna lily; Cape amaryllis
FamilyAmaryllidaceae
GenusAmaryllis
Speciesbelladonna
TypeLate-flowering ornamental bulb
Botanical nameAmaryllis belladonna
Reproducible seedsYes
Belladonna lily (Amaryllis belladonna) is a spectacular South African geophyte whose flowers rise on a bare stem after a period of rest. The Van Noort size 16/18 bulb can produce a sturdy stalk about 75 cm tall, crowned by several fragrant pink funnel-shaped blooms. Each corolla approaches 10 cm long and opens in late summer or early fall. Green, narrow, strap-shaped leaves appear during another stage of the cycle, creating the familiar “naked lady” silhouette. A mature clump can occupy approximately 50 cm in width and brings an elegant vertical accent to a sunny seasonal display.
Set the bulb in a large container in spring, choosing full sun and shelter from cold wind. Use a light, moderately fertile, sharply drained mix, and bury only the base while leaving the neck and upper bulb exposed. Water after planting and maintain moderate moisture during active growth without leaving water in the saucer. Light feeding is sufficient; excessive nitrogen favours leaves at the expense of flowers. In colder Canadian regions, summer warmth helps the bulb ripen, but winter outdoors is too severe. Bring the pot inside before frost or lift the bulb and store it under cool, dry, frost-free conditions.
Belladonna lily suits large pots, warm courtyards, and Mediterranean-inspired compositions. Its pink stems combine with agapanthus, lavender, salvias, fine grasses, and silver foliage that emphasize the flowers without hiding the bulb neck. Fragrant blooms may be cut for arrangements when the first bud begins to open, provided all foliage is preserved. Flowers can receive insect visitors, although the species is not native to Canada. Every part, especially the bulb, is toxic if swallowed; wear gloves while handling it and keep the plant, stored material, and cut stems away from children and pets.
In the garden
- Exposure
- Full sun
- Life cycle
- Subtropical bulbous perennial with dormancy
- Hardiness
- Zones 7 to 10; overwinter frost free in colder Canadian regions
Planting guide
Sowing & germination
Planting depth
Bury the base only; keep neck and upper bulb visible
Spacing / density
300 to 500 mm (12 to 20 in.) between bulbs
Best planting time
Spring, started warm or moved outside after frost
Propagation
Separation of offsets during repotting
Growing method
In spring, inspect the size 16/18 bulb and choose a stable container with generous drainage holes. Prepare a light blend of potting mix, mature compost, and mineral drainage material. Set the bulb with roots spread outward, bury only its base, and leave the neck and upper portion exposed. Water once to settle the mix, then wait until the surface dries before watering again. Position the pot in a warm, sunny, wind-sheltered site. Increase moisture as leaves or the flower stem develop without ever saturating the mix. Feed lightly during active growth. Allow every green leaf to complete its cycle. Before frost, bring the container indoors or lift the bulb after natural decline. Clean it, dry it briefly, and store it in a ventilated, cool, frost-free location. Return it gradually to growth the following spring. All plant parts are toxic if swallowed and must remain beyond the reach of children and pets.
Soil and care
Soil & care
Soil pH
Slightly acidic to neutral
Minimum temperature
Keep frost free; approximately 7 °C (45°F) minimum in dormancy
Care level
Moderate
Drought tolerance
Yes
Watering
Water after planting, then let the upper centimetres dry before the next irrigation. During active growth, provide moderate, steady moisture without soaking the bulb. Reduce water as foliage declines or during dormancy. Always empty the saucer and use room-temperature water indoors.
Soil type
Use light, moderately fertile, sharply drained soil. Quality potting mix amended with mature compost and pumice, perlite, or coarse grit keeps roots aerated. The neck must remain dry and visible. Avoid compact clay, wet hollows, and mixes that retain water during winter.
Fertilization
Apply diluted balanced fertilizer every three to four weeks only during active growth. Begin when roots and leaves are functioning, then stop as foliage declines. Excess nitrogen encourages soft leaves and may delay flowering. Flush container mix occasionally to limit salt accumulation.
Moisture
Normal ambient humidity is suitable when air circulates freely. During rest, the bulb prefers a dry atmosphere instead of a damp stagnant room. Indoors, keep the pot away from cold drafts without enclosing it. Inspect the neck and scales regularly for early softness or mould.
Seasonal care
In spring, repot the bulb if the mix has compacted and return it gradually to warmth and light. Resume watering cautiously, then increase it once growth becomes visible. After frost, acclimate the pot to outdoor sun over one week. During summer, monitor moisture, feed lightly, and stake the stem only if wind threatens to bend it. Remove faded flowers but preserve every green leaf. In autumn, let foliage complete its cycle naturally, then reduce water. Bring the container indoors before frost or lift the bulb as leaves decline. In winter, keep it cool, dry, ventilated, and frost free, inspecting it monthly. Remove only soft tissue with a disinfected tool and let every cut dry. Label the bulb and keep it inaccessible to children and pets. All plant parts are toxic if swallowed and must remain beyond the reach of children and pets.
Container growing
Container growing
Recommended pot size
heavy pot, 35 to 45 cm (14 to 18 in.) in diameter and 30 cm (12 in.) or more deep
Choose a heavy pot 35 to 45 cm wide and at least 30 cm deep with several large holes. Cover openings with mesh without creating a water-holding layer, then fill with airy potting mix amended with compost and mineral material. Bury only the bulb base and keep the neck above the surface. Place the container in full sun in a warm sheltered area. Water deeply, allow complete drainage, then wait until the surface dries. Feed moderately during growth and rotate the pot to balance the flower stem. Before frost, bring it into a bright cool room. For dormancy, reduce water after foliage declines and keep the bulb nearly dry without allowing it to freeze. Repot only when roots occupy the available volume. All plant parts are toxic if swallowed and must remain beyond the reach of children and pets.
Bloom and dimensions
Size, flowering & harvest
Mature height
75 cm (30 in.)
Width / spread
50 cm (20 in.)
Flower color
Pink
Foliage color
Green
Foliage type
Deciduous strap-shaped foliage, separate from flowering period
Growth rate
Moderate
Growth habit
Upright bare stem; clump of strap-shaped foliage
Fragrance
Fragrant flowers
Bloom period
In late summer or early fall, a bare stem approximately 75 cm tall may carry several fragrant pink funnel-shaped flowers. Each bloom approaches 10 cm. Summer warmth, full sun, a mature bulb, and an appropriate rest period encourage flowering, which may be delayed after planting or repotting.
Garden associations
Companion plants & uses
Companion plants
Lavender, salvias, agapanthus, stipa, artemisia, and other silver foliage share its preference for sun and drainage. Grow them preferably in neighbouring pots so watering and overwintering can be adjusted separately. Low annuals may soften the container edge without covering the bulb neck. Avoid dense root competition.
Plants to avoid
The main incompatibilities are physical: cold saturated soil, continual watering during rest, dense shade, and groundcovers that bury the neck. These conditions encourage rot and reduce bulb ripening. Avoid very moisture-demanding plants in the same pot. Protect the stem from strong wind and monitor slugs, scale insects, and mites.
Garden use
Grow belladonna lily as a large-container specimen, vertical accent in a warm courtyard, or fragrant flower for arrangements. Its bare stem suits Mediterranean-inspired compositions and spaces needing late-season bloom. In colder Canadian regions, position it near an access route to simplify autumn movement. Never use it as an edible or medicinal plant.
Frequently asked questions
Frequently asked questions
Why does the plant flower without leaves?
Amaryllis belladonna follows a cycle adapted to its South African climate. The flower stem may appear after a rest period when foliage has disappeared or has not yet returned. This separation explains the common name naked lady. It does not indicate a problem when the bulb remains firm and conditions are suitable. After flowering, strap-shaped leaves must grow and remain intact for as long as they stay green. They capture light and rebuild reserves required for the next cycle. Provide sun, moderate watering, and light nutrition, then let foliage decline naturally. Removing leaves too early weakens the bulb and can delay future flowers.
How should the bulb be overwintered in colder Canadian regions?
Bring the container indoors before frost or lift the bulb after foliage declines naturally. For dormant storage, remove excess soil, let the surface dry briefly, and place it in a breathable container. Keep it cool, dry, ventilated, and frost free, ideally around 7 to 13°C. Inspect monthly; firm texture is normal, while soft or odorous tissue should be removed with a clean tool. Never wet an inactive bulb. Label it clearly and keep it away from children and pets. In spring, repot it, increase warmth and moisture gradually, and move it outdoors only after frost has ended.
How deeply should it be planted?
Bury only the base and roots, leaving the neck and upper bulb visible. This high planting position receives more warmth and prevents water from remaining against the scales. Use a stable pot and airy mix, firming gently without compression. Water to establish root contact, then let the surface dry. If the bulb rocks, add temporary support instead of burying it more deeply. During the season, check that mulch or companion plants have not covered the neck. A deeply buried bulb in heavy mix faces greater rot risk and may flower less reliably. Keep the planting label visible so the correct depth can be repeated after storage.
Why is my belladonna lily not flowering?
A newly planted, divided, or repotted bulb may spend a season rebuilding roots. Insufficient light, a cool summer, excessive nitrogen, leaves removed prematurely, or continually wet rest can also suppress flowering. Position the pot in full sun after acclimation, shelter it from wind, and use sharply drained mix. Feed lightly only during active growth. Let every green leaf complete its cycle, then reduce water during rest. Avoid unnecessary annual repotting because belladonna lily prefers to establish. Patience is normal: a healthy firm bulb may resume flowering after it has accumulated sufficient reserves. Record flowering dates and adjust summer warmth, feeding, and rest conditions the following year.
Is belladonna lily toxic?
Yes. Every part of Amaryllis belladonna contains toxic alkaloids, with the bulb presenting the greatest risk. Never eat it or use it as a remedy. Wear gloves during planting, division, pruning, or cleaning, then wash hands and tools. Keep the pot, cut flowers, and stored bulbs away from children, dogs, and cats. Do not position the container near an edible garden where confusion could occur. After ingestion or symptoms such as nausea, vomiting, drooling, or weakness, promptly contact a poison centre, medical professional, or veterinarian.
Wildlife and pets
Wildlife & precautions
Reported toxicity
Yes
Supporting wildlife
Fragrant pink flowers may receive bees and other flower-visiting insects in late summer. This South African species does not replace native plants as an ecological resource. Use it as an ornamental accent and add locally suitable perennials that provide nectar, pollen, and shelter over a longer period.
Outils
Compostage et écologie
