How to Grow Rex Begonia 'Midnight Kiss'

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Rex Begonia 'Midnight Kiss'

Begonia rex-cultorum 'Midnight Kiss'

flower

Rex Begonia 'Midnight Kiss' is a dramatic foliage houseplant prized for its deep burgundy to black leaves with striking silvery-pink veining and pale undersides. Despite its name, it produces delicate pink flowers, though the ornamental foliage is the primary attraction. This tropical plant is grown indoors in most climates and makes an excellent specimen for containers and shade gardens in warm regions.

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Example Rex Begonia 'Midnight Kiss' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Rex Begonia 'Midnight Kiss'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Rex Begonia 'Midnight Kiss' blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Rex Begonia 'Midnight Kiss' dates for your own zip code.

Growing Conditions

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Sun: Bright, indirect light; 3-4 hours of morning sun ideal; avoid harsh afternoon sun which can fade or scorch foliage
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Water: Keep soil consistently moist but never waterlogged; water when top inch feels dry; reduce watering in winter; ensure high humidity (50-70%) by misting or using a humidity tray
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Spacing: 12 inches
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Days to maturity: N/A (foliage plant; matures over several months)
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Planting depth: Rhizome should be partially exposed at soil surface, not buried

Soil

Type: Light, airy, well-draining potting mix
pH: 6.0-6.5
Amendments:
Peat moss or coco coir Perlite or orchid bark Compost for organic matter

Growing Zones

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Zones 10-11 outdoors; typically grown as a houseplant or in warm, humid greenhouses

10b 11a 11b

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Growth Stages

1

Propagation/Establishment

4-6 weeks

New plantlets from leaf cuttings or rhizome divisions develop small roots and initial leaves

Keep soil very moist and warm (68-75°F); provide high humidity; bright indirect light; mist frequently

2

Vegetative Growth

2-4 months

Plant develops multiple stems and new leaves emerge with characteristic burgundy and silver patterning

Maintain consistent moisture and humidity; feed with dilute liquid fertilizer every 2-3 weeks during growing season; rotate pot weekly for even growth

3

Mature Foliage

Ongoing with proper care

Plant reaches full size with dense, vibrant foliage displaying deep burgundy leaves with prominent veining

Continue regular watering and feeding; remove any dead or yellowing leaves; pinch back stems to encourage bushiness

4

Flowering

Variable, spring to summer

Delicate pink flowers appear on thin stems above the foliage; flowers are secondary to the foliage display

Flowers are optional; pinch off to redirect energy to foliage if desired; flowering often triggers rest period

5

Winter Rest

2-3 months

Plant slows growth; leaves may appear less vibrant; dormancy period occurs

Reduce watering and feeding; maintain temperatures above 60°F; continue bright indirect light; lower humidity is acceptable

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Cacti (different water needs) Succulents (different water needs) Plants requiring full sun and dry soil

Common Pests

  • Improve air circulation; reduce humidity slightly; apply sulfur spray or neem oil; avoid wetting foliage

  • Increase humidity; mist leaves regularly; spray with water to dislodge; use neem oil if severe

  • Isolate plant; remove with rubbing alcohol on a cotton swab; spray with insecticidal soap

  • Reduce humidity; improve air circulation; remove affected leaves; water only at soil level

  • Allow soil to dry slightly between waterings; use well-draining soil; repot if severely affected

Uses

🏠

Indoor Ornamental Display

Household

Rex Begonia 'Midnight Kiss' serves as a striking houseplant for desks, shelves, and table displays, adding dramatic color and texture to interior spaces. The deep burgundy foliage with silver veining creates a sophisticated aesthetic in any room. [source]

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Low-Light Plant Option

Household

Unlike many colorful houseplants, Rex Begonias thrive in bright indirect light rather than full sun, making them ideal for offices, bathrooms, and shaded corners where other plants struggle. [source]

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Humidity-Loving Terrarium Plant

Household

The high humidity requirements make Rex Begonias perfect candidates for terrariums, Wardian cases, and humid groupings in bathrooms or kitchens. [source]

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Propagation and Plant Collecting

Craft

Rex Begonias are easily propagated from single leaves, making them popular among plant collectors and enthusiasts for sharing cuttings and building collections. [source]

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Indoor Pollinator Support

Wildlife

When flowering, the delicate pink blooms attract beneficial insects indoors, supporting biodiversity in houseplant collections. [source]

Harvest Tips

Rex Begonias are foliage plants, not harvested for food. Remove dead or damaged leaves at any time to maintain appearance. Pinch stem tips regularly to encourage branching and fuller shape. Leaf cuttings can be propagated year-round by laying leaves vein-side-down on moist propagation medium.

Fun Facts

  • 🌱 Rex Begonias were first hybridized in the 1850s in Europe from Begonia rex, a species native to Southeast Asia, and are now among the most diverse foliage houseplants with hundreds of cultivar variations.
  • 🌱 'Midnight Kiss' is named for its extremely dark, almost black foliage that appears to be kissed by midnight—an unusual and dramatic coloration among Rex Begonias.
  • 🌱 Rex Begonias can be propagated from a single leaf: place a healthy leaf vein-side-down on moist soil, pin it down, and within weeks tiny plantlets will develop along the leaf veins.

Gardening Terms

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

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