Best Flowers To Plant In May In Georgia

Georgia’s May heat arrives early, making it crucial to select flowers that resist wilting under intense southern sun. Finding the best flowers to plant in may in georgia means choosing varieties that thrive in humidity and high temperatures while still offering vibrant color. This guide covers top picks for your garden, from sun-loving annuals to hardy perennials that can handle Georgia’s unique climate.

May is a transition month in Georgia. The risk of frost has passed, but the summer heat hasn’t fully set in yet. This window is perfect for planting flowers that will bloom through June, July, and August. You want plants that can take the heat and keep performing without constant pampering.

When you think about the best flowers to plant in may in georgia, focus on heat-tolerant species that establish quickly. Georgia’s soil warms up fast in May, so roots develop rapidly. This gives flowers a strong start before the hottest weeks arrive.

Annual Flowers That Love Georgia Heat

Annuals provide non-stop color from planting until the first fall frost. These are the workhorses of a Georgia summer garden.

Lantana

Lantana is practically indestructible in Georgia heat. It laughs at drought and keeps blooming even when temperatures hit the 90s. Plant it in full sun for best results.

Colors: Yellow, orange, pink, red, and multi-color blends
Height: 12 to 24 inches for mounding types, up to 4 feet for trailing
Care: Needs little water once established. Trim back if it gets leggy
Bonus: Butterflies and hummingbirds love it

Zinnias

Zinnias are among the easiest flowers to grow from seed in May. They germinate quickly in warm soil and produce blooms in just 6 to 8 weeks. They resist powdery mildew better than many other summer flowers.

Colors: Almost every color except true blue
Height: 6 inches to 4 feet depending on variety
Care: Water at the base to avoid leaf disease. Deadhead for more blooms
Tip: ‘Benary’s Giant’ and ‘Zahara’ series are top performers in Georgia

Angelonia

Angelonia, also called summer snapdragon, thrives in Georgia’s humidity. It produces spikes of flowers that resemble small orchids. It keeps blooming all summer without needing deadheading.

Colors: Purple, pink, white, and bicolor
Height: 12 to 18 inches
Care: Full sun, well-drained soil. Very low maintenance
Best for: Containers and border edges

Vinca (Catharanthus roseus)

Vinca is a top choice for Georgia because it handles both heat and humidity without issues. It flowers continuously from May through October. It also resists deer and rabbits.

Colors: Pink, white, red, purple, and coral
Height: 8 to 12 inches
Care: Full sun, well-drained soil. Let soil dry between waterings
Note: Vinca does not like wet feet, so avoid overwatering

Portulaca (Moss Rose)

Portulaca is a succulent that thrives in poor, dry soil. It opens its flowers in the morning sun and closes them at night. It’s perfect for rock gardens or hanging baskets.

Colors: Neon shades of pink, orange, yellow, and red
Height: 4 to 6 inches, trailing habit
Care: Full sun, sandy soil. Almost no water needed once established
Tip: Great for areas where other flowers struggle

Perennial Flowers For May Planting In Georgia

Perennials come back year after year. Planting them in May gives them time to establish roots before winter. These choices handle Georgia’s summer heat well.

Black-Eyed Susan (Rudbeckia)

Black-eyed Susans are native to Georgia and bloom from June through September. They tolerate heat, drought, and poor soil. They also attract pollinators.

Colors: Yellow or orange petals with dark brown centers
Height: 2 to 3 feet
Care: Full sun to partial shade. Cut back in late fall
Bonus: Great cut flowers for arrangements

Salvia

Salvia, especially the ‘May Night’ variety, blooms in late spring and continues through summer. It produces spikes of purple or blue flowers that hummingbirds love.

Colors: Purple, blue, pink, red, and white
Height: 18 to 36 inches
Care: Full sun, well-drained soil. Deadhead for repeat blooms
Note: Salvia is deer resistant

Daylilies

Daylilies are tough perennials that thrive in Georgia. They bloom in waves from May through August. Each flower lasts only one day, but the plant produces many buds.

Colors: Yellow, orange, red, pink, purple, and pastels
Height: 12 to 36 inches
Care: Full sun to light shade. Divide every 3 to 4 years
Tip: ‘Stella de Oro’ is a reblooming variety that flowers all summer

Coneflower (Echinacea)

Coneflowers are native to the southeastern US and handle Georgia’s climate perfectly. They bloom from June to August and attract butterflies and bees.

Colors: Purple, pink, white, orange, and yellow
Height: 2 to 4 feet
Care: Full sun, well-drained soil. Drought tolerant once established
Note: Leave seed heads in fall for birds

Russian Sage

Russian sage adds a soft, airy texture to gardens. It blooms from July to September with lavender-blue flowers. It’s extremely heat and drought tolerant.

Colors: Lavender-blue
Height: 3 to 5 feet
Care: Full sun, well-drained soil. Cut back in early spring
Tip: Great for xeriscaping or low-water gardens

Bulbs And Tubers For May Planting

May is the time to plant summer-blooming bulbs in Georgia. These plants store energy in underground structures and produce spectacular flowers.

Cannas

Cannas are tropical-looking plants that thrive in Georgia heat. They produce large, bold flowers and dramatic foliage. They grow quickly from rhizomes planted in May.

Colors: Red, orange, yellow, pink, and bicolor
Height: 2 to 6 feet depending on variety
Care: Full sun, rich soil. Keep soil moist
Tip: ‘Tropicanna’ has striped leaves for extra interest

Dahlias

Dahlias bloom from midsummer until the first frost. Plant tubers in May after the soil warms. They produce stunning flowers in many shapes and sizes.

Colors: Every color except blue-black
Height: 1 to 5 feet depending on type
Care: Full sun, well-drained soil. Stake tall varieties
Note: In Georgia, dahlias may need afternoon shade in July and August

Gladiolus

Gladiolus produces tall spikes of flowers that are excellent for cutting. Plant corms every two weeks from May through June for continuous blooms.

Colors: Wide range including pastels and brights
Height: 2 to 5 feet
Care: Full sun, well-drained soil. Stake to prevent falling
Tip: Plant in groups of 10 to 15 for best visual impact

Caladiums

Caladiums are grown for their colorful leaves rather than flowers. They thrive in Georgia’s heat and humidity. Plant tubers in May for summer-long color in shade gardens.

Colors: Green, white, pink, red, and combinations
Height: 12 to 24 inches
Care: Partial to full shade, moist soil
Tip: ‘White Christmas’ and ‘Pink Beauty’ are reliable varieties

Native Georgia Wildflowers For May

Native plants are adapted to Georgia’s climate and soil. They require less water and fertilizer than non-natives. They also support local wildlife.

Butterfly Weed (Asclepias tuberosa)

Butterfly weed is a milkweed species that attracts monarch butterflies. It blooms from May to August with bright orange flowers. It’s drought tolerant once established.

Colors: Orange, sometimes yellow or red
Height: 1 to 2 feet
Care: Full sun, well-drained soil. Do not overwater
Note: It has deep taproots, so it’s hard to transplant once established

Coreopsis

Coreopsis, also called tickseed, is Georgia’s state wildflower. It blooms from May through July with cheerful yellow flowers. It’s very low maintenance.

Colors: Yellow, gold, orange, and some pink varieties
Height: 1 to 3 feet
Care: Full sun, well-drained soil. Cut back after first bloom for repeat
Tip: ‘Moonbeam’ is a popular variety with pale yellow flowers

Purple Coneflower (Echinacea purpurea)

This native coneflower is a staple in Georgia gardens. It blooms from June to August and attracts butterflies and birds. It’s also used in herbal remedies.

Colors: Purple-pink with orange-brown centers
Height: 2 to 4 feet
Care: Full sun to partial shade, well-drained soil
Note: Self-seeds readily, so you may get new plants each year

Blanket Flower (Gaillardia)

Blanket flower produces daisy-like blooms in warm colors. It flowers from May through September and thrives in poor, sandy soil. It’s very heat tolerant.

Colors: Red, orange, yellow, and bicolor
Height: 12 to 24 inches
Care: Full sun, well-drained soil. Deadhead for more blooms
Tip: Great for coastal Georgia gardens

Tips For Planting Flowers In Georgia In May

Planting in May requires some specific strategies to help flowers survive the coming heat. Follow these steps for best results.

Prepare the soil. Georgia soil is often clay-heavy. Amend with compost or organic matter to improve drainage and fertility. Work it in to a depth of 8 to 10 inches.
Water deeply after planting. Give new plants a thorough soaking to settle the soil around roots. Water daily for the first week if there’s no rain.
Mulch generously. Apply 2 to 3 inches of organic mulch like pine straw or bark. This keeps soil cool, retains moisture, and suppresses weeds.
Choose the right location. Most summer flowers need at least 6 hours of direct sun daily. Morning sun is gentler than afternoon sun in Georgia.
Space plants properly. Good air circulation reduces disease problems in Georgia’s humidity. Follow spacing guidelines on plant tags.
Fertilize lightly. Use a balanced slow-release fertilizer at planting time. Too much nitrogen encourages leaves over flowers.
Monitor for pests. Watch for aphids, spider mites, and whiteflies. Use insecticidal soap or neem oil if needed.
Provide afternoon shade if needed. Some flowers like dahlias and impatiens benefit from shade during the hottest part of the day.

Common Mistakes To Avoid When Planting In May

Even experienced gardeners make errors in May. Here are pitfalls to avoid.

Planting too late in the day. Morning or late afternoon is best. Midday heat stresses new plants.
Overwatering. Georgia’s humidity can cause root rot. Let soil dry slightly between waterings for most flowers.
Ignoring soil pH. Most flowers prefer pH between 6.0 and 7.0. Test your soil and adjust if needed.
Planting too deep. Set plants at the same depth they were in their pots. Deep planting can cause stem rot.
Forgetting to harden off seedlings. If you start seeds indoors, gradually expose them to outdoor conditions over a week.
Choosing shade-loving plants for full sun. Impatiens and begonias will scorch in direct Georgia sun. Read plant tags carefully.

Best Flowers For Georgia’s Climate Zones

Georgia spans USDA zones 6b in the north to 8b in the south. May planting varies slightly by region.

North Georgia (Zones 6b-7a)

In the mountains, May is cooler. You can plant flowers that prefer milder conditions along with heat-lovers.

Good choices: Petunias, marigolds, snapdragons, and foxglove
Tip: Wait until mid-May to plant tender annuals

Central Georgia (Zones 7b-8a)

This region has hot summers and mild winters. Most heat-tolerant flowers do well here.

Good choices: Lantana, zinnias, vinca, and salvia
Tip: Plant in early May for best results

South Georgia (Zones 8b-9a)

Coastal and southern areas have long, hot summers. Choose flowers that can handle high humidity and salt spray.

Good choices: Portulaca, pentas, bougainvillea, and hibiscus
Tip: Provide good drainage to prevent root rot

Container Gardening With May Flowers In Georgia

Containers offer flexibility in Georgia’s heat. You can move pots to shadier spots during heat waves. They also warm up faster in spring.

Choose large pots. Small containers dry out quickly in May heat. Use pots at least 12 inches wide.
Use quality potting mix. Garden soil compacts in containers. Use a mix designed for pots.
Water daily. Containers may need water twice a day in July and August. Check soil moisture with your finger.
Fertilize regularly. Container plants need more nutrients. Use a liquid fertilizer every two weeks.
Best container flowers for May: Lantana, angelonia, portulaca, calibrachoa, and verbena

Frequently Asked Questions

What are the best flowers to plant in May in Georgia for full sun?

Lantana, zinnias, vinca, portulaca, and black-eyed Susans are top choices for full sun. They all tolerate Georgia’s intense summer heat and bloom from May through fall.

Can I plant flowers in May in Georgia if I live in the mountains?

Yes, but wait until mid-May to avoid late frosts. In north Georgia, choose flowers like petunias, marigolds, and snapdragons that tolerate cooler nights. Heat-lovers like lantana may bloom later.

What flowers bloom all summer in Georgia?

Lantana, zinnias, vinca, angelonia, and portulaca bloom continuously from May until the first frost. Perennials like black-eyed Susans and coneflowers also flower for months.

How often should I water new flowers planted in May in Georgia?

Water new flowers daily for the first week if there’s no rain. After that, water deeply 2 to 3 times per week. Adjust based on rainfall and temperature. Container plants may need daily watering.

What are the easiest flowers to grow in Georgia for beginners?

Zinnias, marigolds, vinca, and portulaca are very easy. They germinate quickly, tolerate heat, and need minimal care. They also resist common pests and diseases in Georgia.