10 Best Flowers for Pollinators

Written by
Kiana Okafor
Reviewed by
Prof. Martin Thorne, Ph.D.Some of the best flowers for pollinators are milkweed, goldenrod, and zinnias when pollinators need nectar.
Native plants like bee balm and coneflowers give local pollinators suitable habitat.
Container gardens with salvia and lavender are very effective in small outdoor spaces and support urban pollinators.
Ethically sourced plants do not have neonicotinoid pesticides, which can harm bees and butterflies.
Planting seasonally can ensure blooming from early spring through late fall.
Do not disturb habitats left undisturbed for the winter, such as chrysalises for overwintering pollinators.
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The key to identifying the best flowers for pollinators is first to know these important helpers in the garden. Pollinators, such as bees, butterflies, and hummingbirds, are nature's pollination team. They help support ecosystems and produce our food. I have seen my own garden flourish and produce food when these pollinators visit. Their visits to the flowering plants allow them to carry out their essential jobs of turning flowers into fruits and seeds. The loss of their habitat is the primary threat to their existence. Pesticides only make that problem worse!
Your garden serves as a lifeline for beneficial insects. It connects habitats like stepping stones to other patches. Imagine milkweed feeding monarch caterpillars. Goldenrod provides nectar in the second half of summer. Those plants are crucial habitat connectors. I always create gardens with pollinators at the top of the list. Your garden can be a part of this solution. Be sure to choose a few 'key' plants that support their life cycle.
Pollinator Garden Care Essentials
Tending to your pollinator garden also helps maintain their water needs. During the summer heat, refresh water every day. Shallow dishes with stones in them are ideal. In cooler weather, every 2-3 days is fine. I found that this is a great way to keep bees hydrated and prevent drowning. Staying properly hydrated also fuels their nectar foraging flights.
Use neem oil as a pest control method with caution. Add two tablespoons of neem oil per gallon of water. Only spray the infested plants of your garden at dawn. This protects foraging bees while they sleep. During this time, I refrain from spraying any open blossoms. This natural method targets aphids while leaving pollinators unharmed.
Set up a bee hotel at a height of three to five feet. Face your hotel southeast for the warmth of the morning sun. Keep the tubes clean and dry. Most native bees nest in the ground soil. Leave bare areas for their burrows. My garden has ground nests of mason bees each spring.
Ground-nesting bees require bare soil. They are seventy percent of our native species. Don't mulch everything in the garden. I leave sandy patches close to flower patches. These basic behaviors establish complete pollinator habitats. Your care will create gardens that serve as a sanctuary for pollinators.
Sourcing Plants Ethically
Finding ethically grown plants begins with asking questions at a nursery. Always ask before you buy, and always ask about pesticide history. Some big-box stores may use systemic neonicotinoids, which remain in the plant for a long time. I learned this lesson after suffering some bee mortality when contaminated milkweed from a big box store came home with me. Local nurseries usually use fewer pesticides. They are more familiar with the local pest pressure.
Utilize community seed swaps for heirloom varieties that are suitable for your area. These seeds developed in your climate and soil. They will use less water and resist pests. The best zinnia seeds I ever got came from neighborhood seed swaps. You protect genetic diversity and make connections.
When purchasing online, always check for USDA Organic certification assurances. This means that synthetic pesticides did not come into contact with the plants; however, be sure to verify that product descriptions state they are neonicotinoid-free. I don't even bother with sellers who will not verify their growing practices. Your diligence protects pollinators from undisclosed toxins.
Focus on native plants such as milkweed and goldenrod for specialized relationships. These plants co-evolved with local pollinators over the centuries. Milkweed is the only plant that the Monarch caterpillar eats. I have witnessed this close relationship in my garden. Your selections will enhance important ecological connections.
Designing for Small Spaces
Small space gardening requires smart container choices. Milkweed needs a twelve-inch-deep pot to develop a healthy root system. Using shallow containers can inhibit growth and compromise the quality of plants. Personally, I have experienced this with my own balcony garden endeavors. I prefer large containers to accommodate deep-rooted pollinator favorites. They grow best when they have the proper room.
Set up vertical trellises to expand your planting space. They also offer twice as much space on balconies, train climbing plants on native honeysuckle on an upward scale. My trellised passionflower supplies Gulf fritillary butterflies every day, and they love it. Vertical designs can transform even the smallest areas into verdant habitats.
Make sunlight positions the priority of your containers. Pollinator plants need six hours of direct sunlight daily. Put your milkweed and zinnias in your brightest spots. I move the pots every week so that each container gets even exposure. Good sunshine will enhance blooms and nectar production.
Combine containers to create pollinator clusters. Mini habitats, which facilitated urban bees and butterflies in my pot clusters, hosted a range of visitors throughout the season. Even a small balcony can become an important wildlife corridor. Your little urban garden is making a real contribution to conservation efforts.
Seasonal Planting Strategies
Schedule your seasonal planting around your last frost dates in your local area. Crocus and early-spring blooming bulbs will begin to sprout as temperatures warm. Late-summer blooming flowers prefer warmer soil temperatures for planting. I keep track of my regional frost status for optimal timing. Aligning your planting with seasonal cycles most closely matching pollinators at their peak conservation times.
Choose native plants that inherently flower in every season in your region. Spring columbine is the first to feed the bees as they awaken from their winter sleep. Fall goldenrod supports the migration of monarchs. I find that species are adapted to the local environment. These native species enable specialized relationships with pollinators that non-native species cannot offer.
Leave seed heads and stems standing through winter as they provide an important source of shelter for overwintering insects. Queen bumblebees nest in hollow stems. I will postpone cleaning up the garden until spring. This easy practice supports pollinators next year, while also providing birds with a food source.
Adjust your watering schedule to account for summer heatwaves. Water your plants more frequently to help prevent drought stress. Water deeply in the early morning hours to reduce evaporation. My container garden requires checking daily during extreme heat. Sufficient irrigation ensures a steady nectar flow even under challenging circumstances.
Early Spring (March-April)
- Planting Focus: Early bloomers like crocus and willow provide nectar for emerging bees
- Key Plants: Columbine, golden ragwort, wild geranium (plant as bare-root divisions)
- Pollinator Support: Provides essential food after hibernation; protects queen bumblebees
Late Spring (May-June)
- Planting Focus: Milkweed and allium establish before summer heat; direct-sow annuals
- Key Plants: Bee balm, salvia, anise hyssop (transplant seedlings after last frost)
- Pollinator Support: Supports monarch breeding cycle; feeds early butterflies
Summer (July-August)
- Planting Focus: Heat-tolerant bloomers; succession plant zinnias and cosmos every 3 weeks
- Key Plants: Coneflower, blazing star, verbena (use established plants for quick blooms)
- Pollinator Support: Sustains honey production; provides larval food for swallowtails
Fall (September-October)
- Planting Focus: Late bloomers and seed collection; plant perennials for root establishment
- Key Plants: Goldenrod, aster, Joe Pye weed (transplant divisions from mature plants)
- Pollinator Support: Fuels monarch migration; prepares bees for winter hibernation
Winter Preparation (November-February)
- Planting Focus: Overwintering habitats; leave spent plants standing until spring
- Key Actions: Mulch perennial crowns after ground freezes; provide evergreen shelter
- Pollinator Support: Protects chrysalises and larvae; offers insulation for ground nests
10 Best Flowers for Pollinators
Uncover the top flowers for pollinators that convert your gardens into wildlife-friendly. Milkweed is a must as the only host plant for monarch caterpillars. Without milkweed, monarch butterflies cannot complete their life cycle. I've seen caterpillars munch milkweed leaves in my own yard. Milkweed provides the necessary toxins for monarch caterpillars and butterflies to deter their predators.
Goldenrod is a vital source of late-season fuel for migratory monarchs. It provides abundant nectar when other flowers are finished blooming and their nectar is spent. This native plant also provides ample sustenance to over 115 species of bees, and my fall garden, filled with patches of goldenrod, buzzes with activity. Plant some for pollinator fuel this fall as the weather gets frigid.
Lavender is perfect for water-wise gardens and has an excellent ability to tolerate drought. Its aromatic purple spikes invite imported honey bees during summer. A native of the Mediterranean region, lavender thrives in poor soils and with limited irrigation. Lavender, like other plants, does admirably in rocky, borderline unusable patches of soil. The little water it requires helps it survive the changing climate.
Even the tiniest of spaces can sparkle with the right container choices. For milkweed, a depth of 12-14 inches is required for building healthy roots. Dwarf zinnias are happy in 6-8-inch containers on tabletops. Lavender is excellent in 8-inch pots with adequate drainage. My small balcony gardens demonstrate that small-scale planting can effectively support urban pollinators.
Milkweed (Asclepias)
- Pollinator Benefits: Essential host for monarch butterfly larvae; provides nectar for bees and hummingbirds
- Growth Requirements: Full sun; well-drained soil; tolerates drought once established
- Planting Tips: Plant in spring after last frost; pair with goldenrod for continuous food
- Unique Traits: Milky sap contains cardiac glycosides that protect monarchs from predators
- Container Suitability: Requires 12-14 inch deep pots; excellent for balcony gardens
Bee Balm (Monarda)
- Pollinator Benefits: Tubular flowers attract hummingbirds; mint-family scent lures bees and butterflies
- Growth Requirements: Full sun to partial shade; moist fertile soil; space 18-24 inches apart
- Planting Tips: Divide clumps every 3 years in early spring; resistant to deer browsing
- Unique Traits: Leaves release fragrant oils that repel mosquitoes while attracting pollinators
- Container Suitability: Thrives in 10-12 inch pots; ideal for patio corners
Goldenrod (Solidago)
- Pollinator Benefits: Late-season nectar for migrating monarchs; supports 115+ bee species
- Growth Requirements: Full sun; adaptable to poor soils; avoid overwatering to prevent rot
- Planting Tips: Sow seeds in fall for natural stratification; excellent for meadow gardens
- Unique Traits: Misidentified as hay fever cause (ragweed blooms concurrently); actually hypoallergenic
- Container Suitability: Compact varieties fit 12-inch pots; perfect for rooftop gardens
Anise Hyssop (Agastache)
- Pollinator Benefits: Licorice-scented blooms attract bumble bees and swallowtail butterflies
- Growth Requirements: Full sun; well-drained soil; thrives in heat and humidity
- Planting Tips: Start seeds indoors 8 weeks before last frost; deadhead for extended blooms
- Unique Traits: Edible flowers make sweet tea; deer-resistant foliage
- Container Suitability: Does well in 8-10 inch containers; great for window boxes
Coneflower (Echinacea)
- Pollinator Benefits: Daisy-like centers provide landing pads for butterflies; seeds feed birds
- Growth Requirements: Full sun; tolerant of clay and rocky soils; drought-resistant
- Planting Tips: Plant bare-root divisions in spring; avoid overcrowding to prevent mildew
- Unique Traits: Medicinal roots used in immune-boosting tinctures; blooms June-September
- Container Suitability: Compact types suit 10-inch pots; excellent for deck railings
Zinnia
- Pollinator Benefits: Bright colors attract hummingbirds; open-faced blooms accessible to all bees
- Growth Requirements: Full sun; fertile well-drained soil; water at base to prevent mildew
- Planting Tips: Direct-sow after last frost; succession plant every 2 weeks for continuous color
- Unique Traits: Fast-growing annual; over 20 species range from dwarf to 4-foot giants
- Container Suitability: Dwarf varieties flourish in 6-8 inch pots; ideal for tabletops
Sunflower (Helianthus)
- Pollinator Benefits: Massive pollen centers feed carpenter bees; seeds sustain winter birds
- Growth Requirements: Full sun; deep loose soil; stake tall varieties in windy areas
- Planting Tips: Sow seeds 1 inch deep after soil warms; avoid nitrogen-heavy fertilizers
- Unique Traits: Heliotropic buds track sun; oil-rich seeds are human and wildlife food
- Container Suitability: Dwarf types in 12-inch pots; perfect for sunny balconies
Lavender (Lavandula)
- Pollinator Benefits: Fragrant spikes attract honey bees; repels deer and rabbits
- Growth Requirements: Full sun; alkaline well-drained soil; water sparingly once established
- Planting Tips: Prune back by one-third in spring; avoid wet winter soils to prevent rot
- Unique Traits: Drought-tolerant perennial; blooms used in sachets and culinary dishes
- Container Suitability: Compact varieties in 8-inch pots; ideal for herb gardens
Black-Eyed Susan (Rudbeckia)
- Pollinator Benefits: Dark centers attract predatory wasps that control garden pests
- Growth Requirements: Full sun; average soil; tolerates heat and moderate drought
- Planting Tips: Deadhead for repeat blooms; divide every 3-4 years to maintain vigor
- Unique Traits: Native wildflower; blooms 8+ weeks; seeds support goldfinches in fall
- Container Suitability: Thrives in 10-12 inch pots; great for porch steps
Salvia
- Pollinator Benefits: Tubular flowers cater to hummingbird feeding; aromatic foliage deters deer
- Growth Requirements: Full sun; well-drained soil; avoid over-fertilizing to prevent legginess
- Planting Tips: Pinch back young plants for bushiness; ideal for containers and borders
- Unique Traits: Over 900 species include annuals and perennials; blooms May until frost
- Container Suitability: Perennial types in 12-inch pots; perfect for vertical gardens
5 Common Myths
All non-native plants negatively impact pollinators by displacing native species while providing sub-par nutrition.
Numerous non-native plants, such as zinnias and cosmos, produce large quantities of nectar during periods of seasonal dormancy, or dormancy gaps, when native flowering species may not be blooming. Incorporating these flowers responsibly can provide ample nectar resources without displacing native plants. In urban settings, zinnias and cosmos provide additional nectar resources for pollinators that may exceed native options. In fact, because zinnias and cosmos have long flower cycles and produce much nectar, these non-native plants support bees during the midsummer dearth periods while waiting for native flowering plants to establish & bloom.
Butterflies only require nectar-rich flowers and don't need specific plants for their reproduction cycle.
Butterflies absolutely need specific host plants for laying eggs and larval development. Monarch caterpillars exclusively eat milkweed leaves which contain protective toxins, while swallowtails require plants like parsley or dill. Without these host plants, butterflies cannot complete their life cycles regardless of nectar availability. Gardens must include both nectar sources and caterpillar food sources for successful monarch conservation.
Bees are exclusively attracted to yellow flower varieties and do not see other colors including purple or blue.
Bees have vision that sees UV light and are most attracted to blue/purple flowers, such as lavender and salvia, especially ones with high UV contrast. Bees are able to see colors from the violet spectrum all the way to orange. Purple flowers are the most visible to the vision of a bee. While hoverflies are attracted to yellow flowers, bees consistently received significantly more visits to purple flower varieties based on garden observations.
Pesticides labeled 'organic' or 'natural' are completely safe for pollinators and don't require precautions.
Even natural pesticides like neem oil and pyrethrins can kill bees on contact and contaminate pollen. Experts recommend applying these only at dawn or dusk when pollinators are inactive, using targeted spraying instead of broad applications. Always follow dilution guidelines precisely as concentrated solutions remain highly toxic to beneficial insects including ladybugs and lacewings.
Tiny urban gardens and balcony containers are just too small to do anything to affect pollinator conservation.
Research has shown that urban gardens create important corridors between broken habitats. An individual milkweed plant on a balcony can host many monarch caterpillars. And, clusters of container flowers offer gathering places for numerous bee species. Tiny garden networks collectively provide habitat to significantly increase pollinator diversity in urban settings.
Conclusion
The importance of your garden for pollinators' conservation is significant. Balconies and backyards create crucial pathways, pollinator highways, to connect habitats in a city. In my garden, I have even observed my small area attracting some butterflies that are en route. Each container arrangement adds to the larger vital network.
For greatest impact, consider just three actionable steps: plant host species such as milkweed for monarch caterpillars. Don't use any pesticide that would harm beneficial insects. Leave seed heads standing over the winter to preserve habitat. I do these three things every season. They provide safe places for pollinators to flourish.
Select plants ethically from local nurseries. Look for pesticide-free natives grown to your region's conditions, and ask growers directly what chemicals or soil amendments they use. I buy plants from neighbors I know and trust. This is a healthy start for both the plants and pollinators.
Remember, your efforts lead to* lasting change: your little patch feeds the next generation of essential pollinators. My little garden nourishes Monarchs that migrate thousands of miles. Your actions of commitment today feed and sustain these important creatures for tomorrow.
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Frequently Asked Questions
What are the absolute best flowers for pollinators?
Milkweed, goldenrod, and zinnias rank as top pollinator flowers. Milkweed hosts monarch caterpillars exclusively, goldenrod fuels fall migration with late nectar, and zinnias provide continuous blooms accessible to all bees. These offer reliable nutrition across seasons.
Which perennials support pollinators most effectively?
Long-blooming perennials like coneflower, bee balm, and lavender are pollinator powerhouses. They provide consistent nectar:
- Coneflower: Landing pads for butterflies June-September
- Bee Balm: Tubular flowers for hummingbirds
- Lavender: Drought-resistant spikes for honey bees
How can I attract both bees and butterflies?
Plant host-nectar combos like milkweed with goldenrod. Milkweed feeds monarch caterpillars while goldenrod provides adult butterfly nectar. Add salvia for bees and zinnias for continuous butterfly access. Avoid pesticides and include shallow water sources.
Is fall planting beneficial for pollinator gardens?
Yes, fall planting establishes perennials like goldenrod and aster. Cooler temperatures aid root development before winter. These late bloomers fuel monarch migration and prepare bees for hibernation through reliable nectar sources.
What are critical mistakes in butterfly gardens?
Common errors include:
- Planting only nectar sources without caterpillar hosts like milkweed
- Using systemic pesticides that linger in pollen
- Over-pruning winter habitats needed for chrysalis survival
How should I prepare a pollinator garden for winter?
Leave seed heads and stems standing for insect shelter. Mulch perennial bases after ground freezes. Avoid cleaning debris until spring to protect overwintering larvae and queen bumblebees hibernating underground.
Why are native plants essential for pollinators?
Natives like milkweed and goldenrod evolved with local insects, providing ideal nutrition and breeding conditions. They bloom when pollinators need food most and support specialized relationships non-natives can't replicate.
Can small balcony gardens help pollinators?
Absolutely. Container clusters create urban oases:
- Milkweed in 12-inch pots hosts monarchs
- Dwarf zinnias feed bees continuously
- Herbs like lavender repel pests naturally
What flowers do hummingbirds prefer?
Hummingbirds favor tubular blooms like bee balm, salvia, and anise hyssop. Their red and purple hues attract birds, while nectar composition matches hummingbird metabolism needs. Plant in sun-drenched areas for best results.
Are organic pesticides safe for pollinators?
Not without precautions. Neem oil and pyrethrins still harm bees if applied incorrectly. Always spray at dawn/dusk when pollinators are inactive, target specific pests, and follow dilution guidelines precisely to minimize risks.