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How to Grow Narbonne Star of Bethlehem

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Narbonne Star of Bethlehem

Ornithogalum narbonense

flower

Ornithogalum narbonense is a spring-blooming bulbous perennial producing tall spikes of pure white star-shaped flowers with prominent green stripes on the reverse of petals. Native to the Mediterranean region, it forms elegant vertical accents in gardens and naturalized settings. This hardy bulb is prized for cut flowers and adds sophisticated structure to mixed borders.

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Example Narbonne Star of Bethlehem timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Narbonne Star of Bethlehem

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Narbonne Star of Bethlehem blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Narbonne Star of Bethlehem dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to light shade; 6+ hours of direct sunlight daily
💧
Water: Moderate during growing season; reduce water after flowering. Allow soil to dry between waterings. Avoid waterlogging, especially in winter dormancy. Drought tolerant once established.
📏
Spacing: 6-8 inches
📅
Days to maturity: 120-150 days from planting to first bloom (typically flowers in spring of the following year if fall-planted)
🌱
Planting depth: 3-4 inches (pointed end up)

Soil

Type: Well-draining loamy to sandy soil
pH: 6.0-7.0
Amendments:
compost perlite or sand for drainage bone meal at planting

Growing Zones

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Zones 5b-9a; thrives in cool to warm temperate climates

5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Dormancy/Establishment

3-4 months

Bulb planted in autumn; minimal visible growth as roots develop underground

Plant in fall (September-November) in well-draining soil. Water in after planting. Apply mulch to insulate bulb during cold months.

2

Emergence

2-3 weeks

Green shoots emerge in spring; narrow, strap-like foliage appears

Reduce mulch as temperatures warm. Begin watering if spring is dry. Monitor for slugs and snails.

3

Vegetative Growth

3-4 weeks

Tall flower stalks elongate with linear basal foliage; buds form at spike tips

Water regularly during this phase. Stake tall stems if necessary in windy locations. Avoid excess nitrogen fertilizer.

4

Flowering

3-4 weeks

Dense spikes of star-shaped white flowers with green stripes open from bottom to top; flowers are slightly fragrant

Provide consistent moisture during bloom. Deadhead faded flowers to encourage extended blooming. Cut for arrangements when lower flowers just open.

5

Senescence & Dormancy

4-6 weeks

Flowers fade and fall; foliage yellows and dies back; bulb enters dormancy

Allow foliage to naturally decline; do not cut prematurely as energy returns to bulb. Reduce watering gradually. Stop fertilizing. Bulbs overwinter underground.

Companion Planting

Plan your garden →

Plant with:

tulips daffodils grape hyacinths wallflowers phlox hellebores lamb's ear catmint

Avoid planting near:

very wet-soil plants like sedges aggressive spreading perennials that crowd out bulbs

Common Pests

  • and

    Hand-pick, use copper barriers, apply neem oil or slug baits if infestation occurs

  • Increase humidity, spray with water, apply insecticidal soap if severe

  • Ensure good drainage to prevent egg-laying in soft bulbs; remove infested bulbs

  • Plant in well-draining soil; dust bulbs with neem oil before planting

Uses

🍳

Not edible

Culinary

Ornithogalum narbonense is ornamental only and not consumed. Some Ornithogalum species contain cardiac glycosides and are mildly toxic if ingested. [source]

🏠

Cut flowers and floral arrangements

Household

Excellent for cutting; produces tall, architectural spikes ideal for modern and traditional arrangements. Flowers are long-lasting in vases and add elegance to mixed bouquets. [source]

🎨

Dried flower arrangements

Craft

Stems and flower spikes dry well and retain their structure and pale coloring for dried arrangements and craft projects lasting months. [source]

🦋

Pollinator support

Wildlife

Spring-flowering spikes attract bees and early pollinators seeking nectar and pollen during the transition from winter to warmer seasons. [source]

🏠

Garden structure and naturalization

Household

Naturalizes well in borders, meadows, and rock gardens, providing reliable vertical interest and spring color year after year with minimal maintenance once established. [source]

Harvest Tips

Cut flower spikes in early morning when lower flowers just open; recut stems at an angle and immediately place in cool water. Cut just above the basal foliage cluster. Flowers last 7-10 days in a vase. For garden display, allow flowers to remain on plant to complete their cycle and replenish bulb reserves.

Fun Facts

  • 🌱 The genus name 'Ornithogalum' derives from Greek 'ornis' (bird) and 'gala' (milk), referring to the bird-like appearance of the white flowers
  • 🌱 Ornithogalum narbonense is named for Narbonne in southern France, reflecting its Mediterranean origin and the region where it naturally thrives
  • 🌱 The distinctive green stripes on the flower petals' backs are unique identifying features that make this species instantly recognizable among Star of Bethlehem varieties

Gardening Terms

New to gardening? Learn about terms used in this guide:

Deadhead Full Sun Mulch Perennial pH
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