Best Outdoor Plants for Containers: Perfect Plants for Pots and Planters
Container Garden Expert Michael Johnson
The best outdoor plants for containers include versatile performers like petunias ($3-6), geraniums ($4-8), and marigolds ($2-5) that provide continuous blooms in pots and planters, productive edibles such as tomatoes ($4-8), peppers ($3-7), and herbs ($3-6) that offer fresh harvests from deck and patio gardens, and structural plants like ornamental grasses ($8-20), small shrubs ($15-40), and dwarf trees ($25-75) that create year-round interest in large containers. Container plants typically cost $2-75 each depending on size and type, offering exceptional value by transforming patios, decks, and balconies into vibrant outdoor living spaces while providing flexibility to rearrange displays seasonally, protect tender plants during harsh weather, and garden successfully in limited spaces without traditional ground beds, making beautiful outdoor gardens accessible to anyone with containers and proper plant selection.
Understanding Container Growing Conditions
Container gardening presents unique challenges and opportunities that require specialized plant selection based on the confined growing environment where roots are restricted to pot volumes, drainage and watering needs are more intensive than ground planting, temperature fluctuations affect roots more dramatically in above-ground containers, and plants depend entirely on added fertilizer and fresh potting soil for nutrition rather than natural soil ecosystems. Successful container plants must adapt to these conditions with compact root systems that don't require extensive soil volume, tolerance for more frequent watering cycles and occasional drought stress, ability to thrive in portable containers that can be moved for optimal growing conditions, and robust enough to withstand exposure to wind, sun, and weather extremes that containers experience more intensely than garden beds.
Best Flowering Plants for Outdoor Containers
Annual Flowers for Continuous Color
Season-long blooms in containers:
Petunias (Petunia x hybrida)
- Growth habit: Upright and trailing varieties
- Flower colors: Purple, pink, white, red, yellow, bi-colors
- Bloom period: Spring through frost
- Container size: 8-12 inches minimum diameter
- Light requirements: Full sun to partial shade
- Cost: $3-6 per plant
Geraniums (Pelargonium species)
- Varieties: Zonal, ivy, and scented geraniums
- Growth types: Upright and cascading forms
- Colors: Red, pink, white, salmon, purple
- Heat tolerance: Excellent for sunny containers
- Overwintering: Can be stored indoors
- Cost: $4-8 per plant
Marigolds (Tagetes species)
- Size range: Dwarf (6") to tall (18") varieties
- Flower types: French, African, and signet marigolds
- Colors: Yellow, orange, red, burgundy
- Heat tolerance: Excellent for hot climates
- Pest resistance: Natural insect deterrent
- Cost: $2-5 per plant
Impatiens (Impatiens walleriana)
- Shade tolerance: Excellent for partial shade containers
- Colors: White, pink, red, purple, orange, bi-colors
- Growth habit: Mounded, bushy form
- Water needs: Consistent moisture required
- Heat sensitivity: Prefers cooler locations
- Cost: $3-7 per plant
Perennial Flowers for Containers
Long-term flowering plants:
Daylilies (Hemerocallis species)
- Bloom period: Multiple flushes throughout season
- Colors: Yellow, orange, red, pink, purple, bi-colors
- Growth: Clumping, 12-36 inches tall
- Container size: 14-18 inches minimum diameter
- Cold hardiness: Zones 3-9 depending on variety
- Cost: $8-20 per plant
Hostas (Hosta species)
- Primary feature: Decorative foliage plants
- Leaf varieties: Green, blue, yellow, variegated
- Flowers: Fragrant white or purple spikes
- Shade tolerance: Excellent for shaded containers
- Container size: 12-24 inches depending on variety
- Cost: $6-25 per plant
Coral Bells (Heuchera species)
- Foliage colors: Purple, burgundy, lime, silver
- Growth: Compact 6-12 inch mounds
- Flowers: Delicate spikes above foliage
- Light tolerance: Partial shade to full sun
- Container size: 8-12 inches diameter
- Cost: $8-15 per plant
Coneflowers (Echinacea species)
- Flower colors: Purple, pink, white, orange, yellow
- Growth: 18-36 inches tall, upright habit
- Bloom period: Summer through fall
- Pollinator attraction: Excellent for butterflies
- Container size: 12-16 inches minimum diameter
- Cost: $6-15 per plant
Trailing Plants for Hanging Baskets
Cascading plants for overhead displays:
Trailing Petunias
- Wave series: Vigorous spreading habit
- Growth: Trails 2-4 feet from containers
- Colors: Wide range of vibrant colors
- Maintenance: Self-cleaning, no deadheading
- Heat tolerance: Excellent for hot locations
- Cost: $4-8 per plant
Bacopa (Sutera cordata)
- Flower appearance: Small white, blue, or pink flowers
- Growth habit: Delicate trailing stems
- Bloom period: Continuous throughout season
- Heat sensitivity: Benefits from afternoon shade
- Water needs: Consistent moisture
- Cost: $4-8 per plant
Trailing Verbena (Verbena x hybrida)
- Flower clusters: Dense clusters of small blooms
- Colors: Purple, pink, red, white
- Growth: Spreads 12-18 inches
- Drought tolerance: Good once established
- Fragrance: Light, pleasant scent
- Cost: $3-7 per plant
Ivy Geraniums (Pelargonium peltatum)
- Growth habit: Trailing stems up to 3 feet
- Flowers: Dense clusters in various colors
- Heat tolerance: Better than standard geraniums
- Drought tolerance: Excellent once established
- Container use: Perfect for hanging baskets
- Cost: $5-10 per plant
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Edible Plants for Container Gardens
Vegetables That Thrive in Containers
Productive plants for patio harvests:
Tomatoes (Solanum lycopersicum)
- Varieties: Determinate types best for containers
- Container size: 5-gallon minimum for full-size plants
- Support needs: Cages or stakes required
- Light requirements: 6-8 hours direct sun
- Harvest period: Continuous production
- Cost: $4-8 per plant
Peppers (Capsicum species)
- Types: Bell peppers, hot peppers, ornamental
- Container size: 3-5 gallon containers ideal
- Growth habit: Compact, bushy plants
- Heat tolerance: Excellent for sunny patios
- Harvest: Continuous picking throughout season
- Cost: $3-7 per plant
Lettuce and Greens
- Varieties: Leaf lettuce, spinach, arugula, kale
- Container size: 6-8 inches deep sufficient
- Growth: Quick maturity, 30-60 days
- Succession planting: Continuous harvest
- Cool preference: Best in spring and fall
- Cost: $2-4 per plant or seed packet
Herbs
- Basil: Sweet, Thai, purple varieties
- Parsley: Flat-leaf and curly types
- Cilantro: Cool weather herb
- Oregano: Perennial in warm climates
- Thyme: Compact, drought-tolerant
- Cost: $3-6 per plant
Fruit Plants for Containers
Fresh fruit from patio gardens:
Strawberries
- Varieties: Everbearing types for containers
- Container size: 8-12 inches diameter
- Growth habit: Compact with trailing runners
- Harvest: Continuous fruiting in season
- Perennial nature: Multi-year production
- Cost: $5-12 per plant
Blueberries
- Varieties: Dwarf cultivars for containers
- Container size: 18-24 inches diameter minimum
- Soil needs: Acidic potting mix required
- Pollination: Plant 2+ varieties for best fruit
- Long-term: Multi-year fruit production
- Cost: $15-30 per plant
Dwarf Fruit Trees
- Apple: Dwarf varieties on rootstock
- Citrus: Lemon, lime, orange (warm climates)
- Peach: Dwarf varieties for containers
- Container size: 20-30 gallon containers
- Pruning: Annual pruning maintains size
- Cost: $25-75 per tree
Grape Vines
- Varieties: Compact varieties for containers
- Container size: 15-20 gallon minimum
- Support needs: Trellises or stakes
- Pruning: Annual pruning essential
- Harvest: 2-3 years to full production
- Cost: $15-35 per vine
Herbs for Container Gardens
Culinary and aromatic herbs:
Mediterranean Herbs
- Rosemary: Evergreen, drought-tolerant
- Thyme: Low-growing, spreading habit
- Oregano: Perennial in warm climates
- Sage: Silvery foliage, aromatic
- Lavender: Fragrant flowers and foliage
- Cost: $4-8 per plant
Annual Herbs
- Basil: Heat-loving, continuous harvest
- Cilantro: Cool weather, succession plant
- Dill: Self-seeding, feathery foliage
- Parsley: Biennial, continuous cutting
- Chives: Perennial, onion-flavored
- Cost: $3-6 per plant
Specialty Herbs
- Mint: Contained spreading, various flavors
- Lemon balm: Citrus-scented, bee-friendly
- Stevia: Natural sweetener plant
- Vietnamese coriander: Spicy, tropical
- Curry plant: Aromatic, ornamental
- Cost: $4-10 per plant
Structural Plants for Large Containers
Ornamental Grasses
Plants that add movement and texture:
Fountain Grass (Pennisetum species)
- Growth: Arching, fountain-like form
- Height: 2-4 feet depending on variety
- Flowers: Feathery plumes in summer
- Container size: 12-18 inches diameter
- Movement: Graceful swaying in breeze
- Cost: $8-20 per plant
Japanese Forest Grass (Hakonechloa macra)
- Growth: Mounded, cascading habit
- Foliage: Bright green or golden varieties
- Shade tolerance: Excellent for shaded containers
- Container size: 12-16 inches diameter
- Seasonal interest: Color changes through seasons
- Cost: $12-25 per plant
Blue Fescue (Festuca glauca)
- Growth: Compact, blue-gray tufts
- Size: 8-12 inches tall and wide
- Drought tolerance: Excellent once established
- Container size: 8-12 inches diameter
- Year-round interest: Evergreen in mild climates
- Cost: $6-15 per plant
Feather Reed Grass (Calamagrostis x acutiflora)
- Growth: Upright, columnar form
- Height: 3-5 feet tall
- Flowers: Feathery plumes in late summer
- Container size: 16-20 inches diameter
- Winter interest: Persistent through winter
- Cost: $10-20 per plant
Shrubs for Containers
Permanent structure plants:
Dwarf Boxwood (Buxus sempervirens)
- Growth: Compact, evergreen shrub
- Pruning: Shapes well for formal gardens
- Size: 2-4 feet depending on variety
- Container size: 16-24 inches diameter
- Year-round: Provides constant structure
- Cost: $15-40 per plant
Hydrangeas (Hydrangea species)
- Flower types: Mophead, lacecap, panicle
- Colors: Blue, pink, white, green
- Growth: 3-6 feet depending on variety
- Container size: 18-24 inches diameter
- Seasonal interest: Flowers summer through fall
- Cost: $20-45 per plant
Dwarf Conifers
- Varieties: Dwarf spruce, pine, juniper
- Growth: Slow, maintaining container size
- Evergreen: Year-round color and structure
- Container size: 14-20 inches diameter
- Winter interest: Structure during dormant season
- Cost: $20-60 per plant
Japanese Maple (Acer palmatum)
- Varieties: Dwarf cultivars for containers
- Foliage: Green, red, or variegated leaves
- Fall color: Spectacular autumn display
- Container size: 18-30 inches diameter
- Seasonal interest: Changes throughout year
- Cost: $30-75 per plant
Small Trees for Large Containers
Specimens for dramatic impact:
Dwarf Fruit Trees
- Apple: Columnar varieties space-efficient
- Pear: Dwarf varieties on rootstock
- Cherry: Dwarf sweet and sour varieties
- Container size: 20-30 gallon containers
- Production: Fruit in 2-3 years
- Cost: $35-75 per tree
Ornamental Trees
- Dogwood: Flowering varieties for containers
- Redbud: Early spring blooms
- Serviceberry: Flowers, fruit, fall color
- Container size: 25-40 gallon containers
- Seasonal interest: Multi-season appeal
- Cost: $45-100 per tree
Evergreen Trees
- Dwarf Alberta Spruce: Compact, pyramidal
- Dwarf Mugo Pine: Rounded, slow-growing
- Dwarf Blue Spruce: Compact, blue needles
- Container size: 20-30 gallon containers
- Year-round: Constant color and structure
- Cost: $40-80 per tree
Container Selection and Setup
Choosing the Right Containers
Matching pots to plants:
Size Guidelines
- Small plants: 8-12 inches diameter
- Medium plants: 12-18 inches diameter
- Large plants: 18-30 inches diameter
- Trees and shrubs: 20-40 gallon containers
- Depth: Minimum 8 inches for most plants
- Rule: Container should be 1/3 the height of mature plant
Material Options
- Terracotta: Porous, natural appearance
- Ceramic: Decorative, glazed finishes
- Plastic: Lightweight, moisture-retaining
- Wood: Natural, insulating properties
- Metal: Modern, heat-conducting
- Cost: $10-200 depending on size and material
Drainage Requirements
- Drainage holes: Essential for plant health
- Saucers: Protect surfaces but allow drainage
- Elevate containers: Improve drainage and air circulation
- Gravel layer: Optional, may reduce soil volume
- Drainage materials: Broken pottery, gravel
- Prevention: Avoid waterlogged soil
Soil and Growing Medium
Proper soil for container success:
Potting Mix Selection
- Commercial potting soil: Balanced, sterile blend
- Soilless mixes: Peat or coir-based
- Organic amendments: Compost, aged manure
- Drainage materials: Perlite, vermiculite
- Avoid garden soil: Too heavy for containers
- Cost: $8-25 per large bag
Soil Amendments
- Slow-release fertilizer: Sustained nutrition
- Water-retaining crystals: Reduce watering frequency
- Organic matter: Compost, aged manure
- pH adjusters: Lime or sulfur as needed
- Mycorrhizal inoculants: Enhance root function
- Cost: $15-40 for complete soil enhancement
Seasonal Soil Care
- Annual refresh: Replace or amend top layer
- Fertilizer renewal: Add slow-release fertilizer
- Compaction prevention: Avoid soil settling
- Drainage maintenance: Ensure proper water flow
- pH monitoring: Test and adjust as needed
- Cost: $10-30 per container annually
Watering and Care for Container Plants
Watering Requirements
Proper hydration for container plants:
Daily Watering Needs
- Hot weather: Often twice daily watering
- Container exposure: Dry faster than ground plants
- Soil moisture: Check daily in summer
- Thorough watering: Water until drainage occurs
- Morning timing: Best for plant absorption
- Consistent schedule: Prevents plant stress
Watering Systems
- Hand watering: Personal attention and control
- Drip irrigation: Automated, efficient delivery
- Soaker hoses: Even water distribution
- Self-watering containers: Built-in reservoir
- Timer systems: Consistent automated watering
- Cost: $20-300 depending on system complexity
Water Conservation
- Mulching: Reduces evaporation
- Grouping containers: Creates humid microclimate
- Shade cloth: Reduces heat stress
- Water-retaining crystals: Extend watering intervals
- Efficient containers: Self-watering systems
- Rain collection: Utilize natural precipitation
Fertilization Programs
Nutrition for container plants:
Regular Feeding Schedule
- Liquid fertilizers: Weekly application during growing season
- Slow-release fertilizers: Monthly granular applications
- Organic options: Compost tea, fish emulsion
- Bloom boosters: High-phosphorus for flowering
- Seasonal adjustment: Reduce feeding in fall
- Cost: $25-50 per season for fertilizer program
Container-Specific Nutrition
- Higher nutrient needs: Frequent watering leaches nutrients
- Balanced formulas: NPK ratios for container growing
- Micronutrient supplements: Prevent deficiencies
- Organic alternatives: Compost, worm castings
- Water-soluble: Quick absorption for containers
- Fertilizer concentration: Follow container plant rates
Application Methods
- Granular: Work into soil surface
- Liquid: Apply with watering
- Foliar: Spray on leaves for quick uptake
- Slow-release: Mix into soil at planting
- Organic: Side-dress with compost
- Timing: Early morning or evening application
Seasonal Maintenance
Year-round container care:
Spring Setup
- Soil refresh: Replace or amend growing medium
- Plant selection: Choose appropriate varieties
- Container preparation: Clean and inspect pots
- Planting: Proper spacing and depth
- Initial watering: Establish good soil moisture
- Time: 2-4 hours per container setup
Summer Care
- Daily watering: Monitor moisture needs
- Deadheading: Remove spent flowers
- Fertilizing: Maintain regular feeding schedule
- Pruning: Control size and shape
- Pest monitoring: Watch for insect problems
- Time: 15-30 minutes daily maintenance
Fall Preparation
- Plant replacement: Switch to cool-season varieties
- Soil assessment: Evaluate growing medium
- Container cleaning: Prepare for winter storage
- Harvest: Collect seeds and final produce
- Protection: Prepare for temperature drops
- Time: 1-2 hours per container transition
Winter Care
- Storage: Protect containers from freezing
- Minimal watering: Reduce for dormant plants
- Planning: Research new varieties for next year
- Equipment maintenance: Clean and store tools
- Container care: Prevent freeze damage
- Time: Minimal winter intervention
Seasonal Container Plant Ideas
Spring Container Combinations
Cool weather plants for early season:
Cool Season Flowers
- Pansies: Colorful faces, cool weather bloomers
- Primrose: Bright spring colors
- Sweet alyssum: Fragrant, cascading habit
- Dianthus: Spicy-scented flowers
- Snapdragons: Tall spikes, cool weather
- Cost: $15-35 per spring container
Spring Vegetable Containers
- Lettuce: Quick-growing, cool weather
- Peas: Climbing varieties for vertical interest
- Radishes: Fast-growing, space-efficient
- Spinach: Nutritious, cool weather greens
- Broccoli: Compact varieties for containers
- Cost: $20-40 per vegetable container
Spring Herb Collections
- Parsley: Flat-leaf and curly varieties
- Chives: Perennial, onion-flavored
- Cilantro: Cool weather herb
- Dill: Feathery foliage, self-seeding
- Sage: Aromatic, silvery foliage
- Cost: $15-30 per herb container
Summer Container Gardens
Heat-tolerant plants for peak season:
Heat-Loving Flowers
- Petunias: Continuous blooming, heat tolerant
- Marigolds: Bright colors, pest resistant
- Zinnias: Colorful, easy care
- Vinca: Drought tolerant, continuous blooming
- Geraniums: Classic container plants
- Cost: $20-45 per summer container
Summer Vegetable Containers
- Tomatoes: Determinate varieties for containers
- Peppers: Heat-loving, productive
- Eggplant: Compact varieties available
- Okra: Heat tolerant, productive
- Herbs: Basil, oregano, thyme
- Cost: $25-50 per productive container
Drought-Tolerant Collections
- Succulents: Various shapes and colors
- Lavender: Fragrant, drought tolerant
- Rosemary: Evergreen herb
- Ornamental grasses: Movement and texture
- Sage: Aromatic, drought adapted
- Cost: $25-60 per drought container
Fall Container Displays
Autumn color and interest:
Fall Flowering Plants
- Chrysanthemums: Classic fall bloomers
- Asters: Purple fall flowers
- Ornamental cabbage: Colorful foliage
- Pansies: Cool weather return
- Ornamental peppers: Colorful fruits
- Cost: $20-40 per fall container
Fall Vegetable Containers
- Kale: Colorful, cold-hardy
- Brussels sprouts: Compact varieties
- Lettuce: Cool weather return
- Radishes: Quick-growing fall crop
- Spinach: Cold-hardy greens
- Cost: $15-35 per fall vegetable container
Autumn Foliage Containers
- Japanese maple: Spectacular fall color
- Burning bush: Bright red fall foliage
- Ornamental grasses: Autumn seed heads
- Coral bells: Colorful foliage
- Sedums: Fall blooms, succulent foliage
- Cost: $30-70 per foliage container
Winter Container Interest
Cold-hardy plants for winter display:
Evergreen Containers
- Dwarf conifers: Year-round color
- Boxwood: Formal, evergreen structure
- Holly: Berries and evergreen foliage
- Ivy: Trailing evergreen
- Winter-flowering plants: Cyclamen, pansies
- Cost: $30-80 per winter container
Winter Vegetable Containers
- Kale: Extremely cold hardy
- Brussels sprouts: Improve with frost
- Leeks: Cold-hardy, slow-growing
- Winter lettuce: Cold-adapted varieties
- Herbs: Rosemary, thyme, sage
- Cost: $20-45 per winter vegetable container
Transform Your Outdoor Space with Container Plants
The best outdoor plants for containers offer unlimited possibilities for creating beautiful, productive, and flexible gardens that adapt to any space, climate, and gardening skill level while providing the freedom to rearrange displays seasonally and bring tender plants indoors during harsh weather. Container gardening proves that spectacular outdoor gardens don't require traditional ground space, making gardening accessible to anyone with a patio, deck, balcony, or even a small outdoor area.
Ready to create your perfect container garden? Use GardenUp's garden design app to design stunning container combinations that provide continuous color, fresh harvests, and year-round interest for your outdoor space.
Frequently Asked Questions
What are the easiest outdoor plants for containers?
Marigolds, petunias, geraniums, and herbs like basil are excellent choices for beginners. They're forgiving, provide continuous color or utility, and adapt well to container growing.
How big should containers be for outdoor plants?
Minimum 8-12 inches diameter for most flowers and herbs, 14-18 inches for vegetables and perennials, and 20+ gallons for shrubs and trees. Larger containers provide better root space and moisture retention.
Do container plants need daily watering?
In hot weather, yes. Container plants dry out faster than ground plants. Check soil moisture daily and water when the top inch feels dry.
Can I grow vegetables in containers?
Absolutely! Many vegetables thrive in containers including tomatoes, peppers, lettuce, herbs, and even dwarf fruit trees. Choose compact varieties and provide adequate container size.
What's the best soil for outdoor containers?
High-quality potting mix designed for containers. Avoid garden soil which is too heavy and doesn't drain well. Add slow-release fertilizer and water-retaining crystals.
How do I protect container plants in winter?
In cold climates, move tender plants indoors, wrap containers to prevent freezing, or store in unheated but protected areas. Choose cold-hardy plants for year-round outdoor containers.
Create Your Dream Container Garden Today
Container gardening opens up endless possibilities for creating beautiful, productive outdoor spaces regardless of your available ground space or gardening experience. The right plant selection and proper care create spectacular results that provide continuous color, fresh harvests, and the flexibility to adapt your garden to changing seasons and needs.
Start your container garden today with plants perfectly suited to pot growing, creating beautiful outdoor displays that transform any space into a thriving garden paradise while providing the satisfaction of successful gardening in any location.
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