Begonia (Begonia family) Care Guide

Begonia family

Care Level: Intermediate ⚠️ Toxic to Pets

Begonias offer unmatched diversity in the houseplant world, from the dramatic foliage of rex begonias to the abundant flowers of wax begonias. Their ability to thrive in lower light conditions makes them perfect for brightening up spaces where other flowering plants struggle. With hundreds of varieties available, there's a begonia to suit every taste and skill level, making them excellent choices for both beginners seeking easy-care options and collectors looking for unique specimens.

Quick Care Reference

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Light

Bright, indirect light mimicking filtered rainforest canopy conditions

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Water

Water when top 1-2 inches of soil dry out, typically once per week

🌡️

Temperature

65-85°F (18-29°C)

💨

Humidity

60-80% ideal, minimum 50%

📖 Complete Care Guide

Begonia semperflorens 'Lotto Mixed' Care Guide: Complete Growing Instructions

Overview

Begonia semperflorens 'Lotto Mixed' is a beginner-friendly plant that offers continuous blooms in a vibrant mix of colors including red, pink, and white throughout the growing season. This comprehensive guide covers everything you need to successfully grow and maintain your Begonia semperflorens 'Lotto Mixed'.

Light Requirements

Ideal Conditions

  • Light Type: Bright, indirect light or partial shade
  • Intensity: Medium to bright filtered light
  • Duration: 4-6 hours daily
  • Best Placement: East or north-facing windows, or a few feet from south/west windows

Signs of Light Issues

  • Too Much Light: Leaf scorch, brown crispy edges, faded flower colors, wilting despite moist soil
  • Too Little Light: Leggy growth, fewer blooms, pale leaves, stretching toward light source
  • Solutions: Move to shadier spot if scorched; relocate closer to window or add grow light if stretching

Watering Guide

Watering Schedule

  • Growing Season (Spring/Summer): Water when top 1-2 inches of soil feels dry, typically every 3-4 days
  • Dormant Season (Fall/Winter): Reduce watering to once per week or when top 2-3 inches are dry
  • Check Method: Insert finger into soil up to second knuckle; if dry, water thoroughly

Watering Technique

  • Method: Water from the bottom or carefully around the plant base to avoid wetting leaves
  • Amount: Water until excess drains from bottom holes, ensuring thorough saturation
  • Water Type: Room temperature water; rainwater or filtered water preferred
  • Drainage: Essential - ensure pots have drainage holes and never let plant sit in standing water

Watering Problems

  • Overwatering Signs: Yellowing leaves, soft brown spots, mushy stems, root rot, fungal growth
  • Underwatering Signs: Crispy leaf edges, drooping, dry soil pulling away from pot sides, flower drop
  • Recovery Tips: For overwatering, allow soil to dry out and check roots; for underwatering, gradually rehydrate with small amounts of water

Soil Requirements

Soil Composition

  • Base Mix: Well-draining, light potting mix with good aeration
  • Custom Recipe: 2 parts peat-free potting soil, 1 part perlite, 1 part vermiculite, handful of compost
  • Commercial Alternative: African violet potting mix or general houseplant mix amended with extra perlite
  • pH Level: 5.5-6.5 (slightly acidic to neutral)

Soil Maintenance

  • Refresh Frequency: Top-dress with fresh compost annually; full soil replacement every 2 years
  • Signs to Replace: Compacted soil, salt buildup (white crust), poor drainage, foul odor
  • Amendments: Slow-release granular fertilizer, worm castings for nutrients, orchid bark for drainage

Temperature & Humidity

Temperature Ranges

  • Optimal Range: 65-75°F (18-24°C)
  • Minimum Safe: 50°F (10°C)
  • Maximum Safe: 85°F (29°C)
  • Temperature Fluctuations: Prefers stable temperatures; avoid drafts and sudden changes

Humidity Management

  • Ideal Humidity: 50-60%
  • Minimum Acceptable: 40%
  • How to Increase: Group plants together, use pebble trays, mist around (not on) plant, run humidifier
  • Monitoring: Use hygrometer; watch for crispy leaf edges (too dry) or fungal issues (too humid)

Fertilization Program

Fertilizer Schedule

  • Growing Season: Every 2 weeks with diluted liquid fertilizer
  • Dormant Season: Once monthly or suspend feeding entirely
  • Type: Balanced water-soluble fertilizer (10-10-10 or 20-20-20)
  • Strength: Dilute to 1/4 strength of package recommendations

Application Method

  • Technique: Apply to moist soil during regular watering to prevent root burn
  • Timing: Morning feeding preferred; never fertilize dry or stressed plants
  • Signs of Over-fertilization: Salt buildup on soil, brown leaf tips, lush foliage but no flowers
  • Recovery: Flush soil with plain water monthly; skip next 2-3 feedings if over-fertilized

Pruning & Maintenance

Regular Maintenance

  • Frequency: Weekly deadheading during bloom season; monthly shape pruning as needed
  • Tools Needed: Clean scissors or pruning shears, rubbing alcohol for sterilization
  • Sterilization: Wipe tools with 70% rubbing alcohol between plants and cuts

What to Prune

  • Dead/Dying Parts: Remove spent flowers promptly to encourage more blooms; trim yellowing leaves
  • Shape Control: Pinch growing tips to encourage bushiness; trim leggy stems by 1/3
  • Size Management: Can be pruned back by up to half in early spring for compact growth
  • Timing: Best done in early spring before active growth; deadhead throughout growing season

Post-Pruning Care

  • Wound Treatment: Allow cuts to air dry; dust with cinnamon if concerned about disease
  • Recovery Period: Keep slightly drier for a week after major pruning; resume normal care as new growth appears

Repotting Guide

Repotting Schedule

  • Frequency: Every 1-2 years or when rootbound
  • Best Time: Early spring before flowering begins
  • Signs to Repot: Roots circling drainage holes, water runs straight through, stunted growth

Repotting Process

  1. Preparation: Water plant day before; gather fresh soil, clean pot, and tools
  2. Pot Size: Choose pot only 1-2 inches larger in diameter than current
  3. Root Care: Gently tease out circling roots; trim any black or mushy roots
  4. Planting: Position at same depth as before; firm soil gently around roots
  5. After Care: Water lightly; keep in shade for a week; resume normal care gradually

Pot Selection

  • Material: Plastic or glazed ceramic retains moisture well; terra cotta for humid environments
  • Drainage: Multiple drainage holes essential; add pot feet for extra airflow
  • Size Guidelines: Wider than deep; Begonias have shallow root systems

Seasonal Care Calendar

Spring (March-May)

  • Begin increasing water and fertilizer as growth resumes; repot if needed; start taking cuttings for propagation; move outdoors after last frost if desired

Summer (June-August)

  • Peak blooming season; deadhead regularly; water frequently in hot weather; watch for pests; provide afternoon shade if outdoors

Fall (September-November)

  • Reduce watering and feeding; bring indoors before first frost; prune back leggy growth; prepare for winter dormancy

Winter (December-February)

  • Minimal watering; no fertilizer; maintain temperatures above 50°F; provide brightest light possible; watch for powdery mildew in low light

Pro Tips for Success

  • Group with other plants to create beneficial humidity microclimate
  • Rotate pot weekly for even growth and prevent leaning
  • Use coffee filters in pot bottoms to prevent soil loss while maintaining drainage
  • Propagate easily from leaf or stem cuttings in water or moist soil
  • Mix varieties of Begonia semperflorens for stunning color combinations

Tools & Supplies Checklist

  • [ ] Well-draining potting mix
  • [ ] Perlite for soil amendment
  • [ ] Balanced liquid fertilizer
  • [ ] Watering can with narrow spout
  • [ ] Pruning shears or scissors
  • [ ] Humidity meter (hygrometer)

Monthly Care Reminder

Use this checklist to stay on track with your Begonia semperflorens 'Lotto Mixed' care:

  • [ ] Check soil moisture
  • [ ] Inspect for pests/diseases
  • [ ] Clean leaves (if applicable)
  • [ ] Rotate plant for even growth
  • [ ] Monitor environmental conditions
  • [ ] Document growth/changes

Last updated: January 2025 Difficulty Level: Beginner-friendly Estimated time commitment: 15-20 minutes per week

🌱 Recommended Fertilizers for Begonia (Begonia family)

Keep your Begonia (Begonia family) thriving with these expert-recommended fertilizers.

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🪴 Recommended Soil Mixes for Begonia (Begonia family)

Give your Begonia (Begonia family) the perfect growing medium with these soil mixes.

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🛠️ Essential Garden Tools for Begonia (Begonia family)

Professional tools and equipment to help you care for your Begonia (Begonia family) like an expert.

Vigoroot Pots

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💡 Pro Care Tips for Begonia (Begonia family)

Expert tips to help your Begonia (Begonia family) thrive and reach its full potential.

💡

Group with other plants to create beneficial humidity microclimate

💡

Rotate pot weekly for even growth and prevent leaning

💡

Use coffee filters in pot bottoms to prevent soil loss while maintaining drainage

💡

Propagate easily from leaf or stem cuttings in water or moist soil

💡

Mix varieties of Begonia semperflorens for stunning color combinations

💡

East or north-facing windows, or a few feet from south/west windows

🚨 Common Problems & Solutions for Begonia (Begonia family)

Identify and solve common issues to keep your Begonia (Begonia family) healthy and beautiful.

Leaf Issues

Yellowing Leaves

Symptoms: Lower leaves turning yellow and dropping off, progressing upward; leaves may show yellow patches or uniform yellowing Common Causes:

  • Overwatering causing root suffocation and nutrient uptake issues
  • Natural aging of older leaves (normal if limited to bottom leaves)
  • Nitrogen deficiency from poor soil or lack of fertilization

Solutions:

  • Check soil moisture - allow top inch to dry between waterings
  • Remove yellowing leaves to redirect energy to healthy growth
  • Apply balanced liquid fertilizer diluted to half strength every 2 weeks

Prevention: Maintain consistent watering schedule using the finger test; ensure pots have drainage holes; feed regularly during growing season

Brown/Crispy Leaves

Symptoms: Leaf edges turning brown and crispy, starting at tips and progressing inward; leaves may curl or become papery Common Causes:

  • Low humidity levels (below 40%)
  • Fertilizer burn from too concentrated feeding
  • Direct sun exposure causing leaf scorch

Solutions:

  • Increase humidity with pebble trays or grouping plants together
  • Flush soil with water to remove excess fertilizer salts
  • Move to bright indirect light, avoiding hot afternoon sun

Prevention: Maintain 50-60% humidity; always dilute fertilizer to recommended strength; position in bright but filtered light

Drooping/Wilting

Symptoms: Leaves and stems hanging limply despite moist soil; entire plant appears deflated Common Causes:

  • Root rot from overwatering and poor drainage
  • Severe underwatering causing dehydration
  • Temperature shock from cold drafts or heat stress

Solutions:

  • Check roots for rot - trim damaged roots and repot in fresh soil
  • Water thoroughly if soil is bone dry, allowing excess to drain
  • Move away from air vents, heaters, or cold windows

Prevention: Water only when top inch of soil is dry; use well-draining potting mix; maintain stable temperatures between 65-75°F

Leaf Drop

Symptoms: Sudden loss of multiple leaves, including healthy-looking ones; bare stems appearing Common Causes:

  • Stress from repotting or environmental changes
  • Cold damage from temperatures below 50°F
  • Inconsistent watering causing plant stress

Solutions:

  • Provide stable conditions and avoid moving plant frequently
  • Maintain temperatures above 55°F at all times
  • Establish regular watering routine based on soil moisture

Prevention: Acclimate gradually to new environments; protect from cold drafts; monitor soil moisture regularly

Growth Issues

Stunted Growth

Symptoms: Little to no new growth during active season; small leaves; compact appearance beyond normal Common Causes:

  • Root bound conditions limiting nutrient uptake
  • Insufficient light for photosynthesis
  • Nutrient deficiencies from depleted soil

Solutions:

  • Check if roots are circling pot - repot if necessary
  • Move to brighter location with indirect light
  • Begin regular feeding schedule with balanced fertilizer

Prevention: Repot annually in spring; provide bright indirect light; feed monthly during growing season

Leggy/Stretching Growth

Symptoms: Long stems with wide spaces between leaves; plant reaching toward light source; weak stems Common Causes:

  • Insufficient light causing etiolation
  • Overcrowding with other plants
  • Lack of pruning allowing uncontrolled growth

Solutions:

  • Relocate to brighter spot or supplement with grow lights
  • Space plants appropriately for air circulation
  • Pinch growing tips to encourage bushier growth

Prevention: Rotate plant weekly for even growth; prune regularly; ensure adequate light levels year-round

Pest Problems

Aphids

Identification: Tiny green, white, or black soft-bodied insects clustering on new growth and flower buds Damage Signs: Sticky honeydew on leaves; curled or distorted new growth; yellowing leaves Treatment:

  • Spray off with strong water stream
  • Apply insecticidal soap or neem oil weekly
  • Release ladybugs as natural predators Prevention: Inspect new plants before introducing; maintain good air circulation; avoid over-fertilizing with nitrogen

Mealybugs

Identification: White, cotton-like masses in leaf joints and stem crevices; slow-moving oval insects Damage Signs: Yellowing leaves; sticky residue; stunted growth; white waxy deposits Treatment:

  • Dab individual bugs with alcohol-soaked cotton swabs
  • Spray with neem oil solution every 5-7 days
  • Quarantine infected plants to prevent spread Prevention: Regular inspection of leaf undersides and joints; maintain appropriate humidity; isolate new plants

Spider Mites

Identification: Tiny red or brown specks on leaf undersides; fine webbing between leaves and stems Damage Signs: Stippled or speckled leaves; bronzing of foliage; leaf drop Treatment:

  • Shower plant weekly to disrupt mites
  • Apply miticide or neem oil every 3 days
  • Prune heavily infested leaves and dispose Prevention: Increase humidity above 50%; mist regularly; keep leaves dust-free

Disease Issues

Powdery Mildew

Symptoms: White, powdery coating on leaves and stems; distorted leaf growth Causes: High humidity combined with poor air circulation; overcrowding Treatment:

  • Remove affected leaves immediately
  • Apply fungicide or baking soda solution
  • Improve air circulation around plants Prevention: Space plants adequately; water at soil level; maintain moderate humidity with good airflow

Botrytis Blight (Gray Mold)

Symptoms: Gray, fuzzy mold on flowers and leaves; brown spots with yellow halos Causes: Cool, humid conditions; overhead watering; poor sanitation Treatment:

  • Remove all affected plant parts
  • Apply copper-based fungicide
  • Reduce humidity and improve ventilation Prevention: Water early in day; avoid wetting foliage; remove dead flowers promptly

Root Problems

Root Rot

Symptoms: Yellowing leaves despite moist soil; musty smell from soil; wilting that doesn't improve with watering Identification: Black or brown mushy roots when removed from pot; healthy roots should be white and firm Treatment:

  • Remove from pot and trim all affected roots
  • Repot in fresh, sterile potting mix
  • Reduce watering frequency significantly Prevention: Use well-draining soil mix; ensure pots have drainage; never let plant sit in standing water

Root Bound

Symptoms: Roots circling pot bottom; water runs through quickly; growth slows despite good care Identification: Roots visible through drainage holes; solid root mass when removed from pot Treatment:

  • Repot into container 1-2 inches larger
  • Gently tease roots apart before repotting
  • Trim excessively long roots if necessary Prevention: Repot every 1-2 years; choose appropriate pot size; monitor for roots at drainage holes

Environmental Stress

Temperature Shock

Symptoms: Sudden leaf drop; wilting; brown leaf edges; flower bud drop Causes: Exposure to temperatures below 50°F or above 85°F; rapid temperature changes Treatment: Move to stable temperature location; remove damaged foliage; reduce watering temporarily Prevention: Keep away from drafts and heat sources; maintain 65-75°F range; acclimate gradually to outdoor conditions

Humidity Issues

Low Humidity Symptoms: Brown leaf tips; flower drop; increased pest susceptibility High Humidity Symptoms: Fungal growth; soft rot; mold development Solutions: Use humidity trays for dry air; improve ventilation for excess humidity; group plants appropriately Prevention: Maintain 50-60% humidity; use hygrometer to monitor; adjust based on season

Light Stress

Too Much Light: Bleached or scorched leaves; brown patches; wilting despite moist soil Too Little Light: Leggy growth; small leaves; lack of flowering; pale coloration Solutions: Adjust position gradually; use sheer curtains for filtering; supplement with grow lights if needed Prevention: Provide bright indirect light; rotate weekly; monitor for seasonal light changes

Quick Diagnostic Guide

Emergency Symptoms

Symptom Likely Cause Immediate Action
Sudden total wilt Root rot or severe dehydration Check roots and soil moisture immediately
Black stems Stem rot or cold damage Remove affected parts, improve conditions
White fuzzy growth Powdery mildew outbreak Isolate plant, apply fungicide
Leaves dropping en masse Environmental shock Stabilize temperature and watering

When to Seek Help

  • Plant doesn't respond to treatment within 2 weeks
  • Multiple problems occurring simultaneously
  • Unsure of pest or disease identification

Prevention Checklist

  • [ ] Check soil moisture before watering - top inch should be dry
  • [ ] Inspect weekly for pests, especially undersides of leaves
  • [ ] Maintain stable temperatures between 65-75°F
  • [ ] Provide bright indirect light, avoiding direct sun
  • [ ] Feed monthly during spring and summer growth
  • [ ] Ensure proper drainage in all containers

Recovery Timeline

Week 1: Remove damaged parts; adjust care routine; monitor closely Week 2-3: New growth should begin appearing; continue consistent care Month 1+: Full recovery with proper flowering; maintain preventive measures


Remember: Most Begonia problems are preventable with proper care. When in doubt, adjust watering first, then light conditions.

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