How to Grow Begonia, Wax Begonia
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Begonia, Wax Begonia
Begonia × semperflorens-cultorum
flowerWax begonias are compact, bushy annual or tender perennial flowers prized for their continuous blooming and attractive foliage. They feature waxy, rounded leaves in shades of green or bronze and produce small flowers in pink, red, or white throughout the growing season. Ideal for beds, borders, containers, and shaded gardens.
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Example Begonia, Wax Begonia timeline · Pittsburgh, PA (Zone 6b)
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Plant Begonia, Wax Begonia
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Begonia, Wax Begonia blooms
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Begonia, Wax Begonia dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-11 as annual; zones 10-11 as perennial
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Seedling
3-4 weeksTiny seeds germinate in 10-14 days. First true leaves emerge, followed by characteristic begonia foliage. Plants are very delicate.
Keep soil moist under humid conditions. Provide bright, indirect light. Use bottom heat (70-75°F) for faster germination. Provide good air circulation to prevent damping off.
Vegetative Growth
3-4 weeksPlant develops bushy form with multiple stems and branches. Glossy, rounded leaves grow increasingly dense. No flowers yet.
Pinch growing tips to encourage branching and fuller shape. Maintain consistent moisture and humidity. Feed with balanced, dilute fertilizer every 2 weeks.
Budding & Early Flowering
1-2 weeksFirst flower buds appear at branch tips. Small flowers begin opening in clusters.
Reduce nitrogen slightly to promote more flowers. Continue regular watering. Provide adequate light. Remove any diseased foliage.
Continuous Flowering
10-16 weeks until frostPlant is covered with small, delicate flowers in shades of pink, red, or white. Foliage remains lush and attractive. Flowering continues throughout season.
Deadhead spent flowers to maintain appearance, though not strictly necessary as plant self-cleans. Apply balanced fertilizer every 3-4 weeks. Monitor for pests and diseases.
Decline (End of Season)
Variable with frost dateGrowth slows as temperatures cool. Flowering diminishes. Plant becomes less vigorous in fall.
In frost-prone areas, dig up healthy plants and pot them for indoor growing over winter, or collect seeds. Cut back watering slightly in cool weather.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Improve air circulation. Avoid overhead watering. Apply sulfur spray or neem oil at first sign of white coating. Remove infected leaves.
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Space plants adequately. Ensure good air circulation. Remove dead flowers and foliage promptly. Reduce humidity. Avoid wetting foliage.
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Increase humidity with misting. Spray leaves with water to dislodge. Apply insecticidal soap or neem oil. Repeat weekly as needed.
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Isolate affected plants. Spray with insecticidal soap or neem oil. Wipe leaves with rubbing alcohol on cotton swab. Repeat treatments every 7-10 days.
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Install yellow sticky traps. Spray with insecticidal soap or neem oil. Increase air circulation. Reduce humidity if possible.
Uses
Edible Flowers
CulinaryWax begonia flowers are edible and slightly tart with a cucumber-like flavor. They make attractive garnishes for salads and desserts, adding both visual interest and subtle flavor. [source]
Ornamental Bedding & Container Plant
HouseholdSemperflorens begonias are quintessential bedding plants for shaded and partial-shade gardens. Their continuous flowering and compact form make them ideal for borders, containers, and mass plantings. [source]
Cut Flowers & Floral Arrangements
CraftThe delicate flowers and attractive foliage can be used in small bouquets and floral arrangements, though stems are fragile and require careful handling. [source]
Traditional Medicine
MedicinalSome cultures use begonia species in traditional medicine preparations, though begonias are not widely used in modern herbal medicine and should not be consumed medicinally without expert guidance. [source]
Pollinator Garden
WildlifeWax begonia flowers attract bees and other pollinating insects, making them a valuable addition to gardens supporting pollinators. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Wax begonias are ornamental flowers rather than harvested plants. Deadhead spent flowers to encourage continuous blooming and maintain neat appearance. Pinch back stems in early season to promote bushier growth. If collecting seeds, allow some flowers to fade and form seed pods, then harvest dry pods.
Fun Facts
- 🌱 Wax begonias earned their common name from the waxy coating on their leaves and stems, which gives them a distinctive glossy appearance and makes water bead up on the foliage.
- 🌱 The 'semperflorens' in the scientific name means 'flowering always' or 'perpetually flowering,' reflecting the plant's remarkable ability to bloom continuously throughout the growing season with minimal deadheading.
- 🌱 Wax begonias are actually tropical perennials that are grown as annuals in temperate climates. In frost-free regions, they can be overwintered and will return year after year.
Gardening Terms
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