Plants that bloom in August in Zone 5 with red flowers

Astilbe

Feathery plumes that light up shady, moist spots like nothing else can.

Bee Balm

Shaggy, crown-shaped flowers that hummingbirds fight over.

Big Bluestem

The signature grass of the tallgrass prairie, turning copper-bronze in fall with distinctive turkey-foot seed heads.

Blanket Flower

Fiery bicolor pinwheels that bloom nonstop in the worst heat and soil.

Cardinal Flower

Screaming scarlet spikes. The most vivid red in the native plant world.

Celosia

Flame-shaped or crested flowers in electric colors that dry beautifully. Heat lovers that thrive in summer.

Cheyenne Spirit Coneflower

A rainbow mix of coneflower colors from a single seed strain. Every plant is a surprise.

Chicago Apache Daylily

Scarlet red with a velvety texture. One of the best true red daylilies available.

Clematis

The queen of flowering vines. Over 300 species, something for every spot.

Coral Honeysuckle

Non-invasive native honeysuckle with brilliant coral-red tubular flowers that hummingbirds hover at for months.

Cosmos

Airy, dancing flowers on thread-thin stems. Effortless cottage garden charm.

Crocosmia

Arching sprays of fiery red-orange that hummingbirds go crazy for. Sword-like foliage adds structure.

Dahlia

Endless forms from dinner-plate to pompom. The obsession of flower farmers.

Daylily

Virtually indestructible perennial with trumpet blooms in every warm hue.

Dianthus

Spicy clove-scented pinks with fringed petals in pink, red, white, or salmon, one of the best long-blooming edgers and front-of-border perennials for sun.

Don Juan Climbing Rose

Deep velvety red climber with classic rose fragrance. Repeats reliably on a strong, vigorous plant.

Double Delight Rose

Creamy white petals blush to strawberry red at the edges. Knockout fragrance matches the looks.

Double Knock Out Rose

Fuller, double-petaled version of the Knock Out. Same bulletproof performance with more petal count.

Dragon's Blood Sedum

Creeping mat of burgundy-tinged foliage with starry red flowers. Turns deep red in fall.

Drift Rose

Groundcover rose that stays low and spreads wide. Tough, disease-resistant, and constantly in bloom.

Emily McKenzie Crocosmia

Bold orange blooms with red throats appear on graceful arching stems in late summer.

Ernest Markham Clematis

Magenta-red flowers with brown anthers that bloom late when others have faded. A solid, underappreciated red clematis.

Garden Phlox

Billowing clusters of fragrant summer color. A butterfly magnet.

Hardy Hibiscus

Dinner-plate blooms up to 12 inches across on a native perennial that dies to the ground and returns bigger each year.

Helenium

Warm-toned daisy-like flowers with raised centers bloom as summer turns to fall. Loves moist soil.

Honeysuckle

Tubular, nectar-rich flowers with a fragrance that defines summer evenings.

Hot Papaya Coneflower

Fiery double blooms like tiny orange dahlias on a coneflower. A showstopper that earns every bit of the hype.

Impatiens

The shade annual champion. Flowers prolifically where nothing else will.

Knock Out Rose

The rose that changed everything. Disease-resistant, self-cleaning, and blooms nonstop from spring to frost.

Luna Red Hibiscus

Compact variety with enormous crimson blooms that stays tidy enough for a large container.

Marigold

Bulletproof color all season long. The workhorse of warm-toned borders.

Masterwort

Intricate pincushion flowers surrounded by papery bracts in soft pinks and whites. Beloved by florists and shade gardeners alike.

Mexican Hat

Distinctive sombrero-like flowers sway on wiry stems in summer prairies.

Morning Glory

Fast-climbing vine with trumpets that open fresh every morning.

Night Embers Daylily

Deep burgundy-red with a black eye and yellow throat, smoldering in the summer border.

Oriental Lily

Huge, intensely fragrant blooms in deep pink and white that perfume the entire garden. The lily that defines summer.

Pardon Me Daylily

Compact cranberry-red with a yellow-green throat and one of the best reblooming habits in the entire family.

Petunia

Cascading color for containers and beds. Blooms nonstop until frost.

Plumleaf Azalea

The only azalea that blooms in midsummer, with fiery orange-red flowers that light up the late-season shade garden.

Quick Fire Hydrangea

Blooms a full month before other paniculatas. White cones age to deep rosy pink by fall.

Red Hot Poker

Torch-like spikes in fire-orange and yellow that hummingbirds zoom straight to. Bold and unforgettable.

Red Hot Returns Daylily

Brilliant red with a small yellow center, compact and one of the earliest daylilies to kick into rebloom.

Rose

The queen of the garden. Modern varieties are surprisingly low-maintenance.

Salvia

Vertical flower spikes that hummingbirds and bees cannot resist.

Scarlet Gilia

Tubular red trumpets on a wiry biennial that hummingbirds adore across the Mountain West. Blooms its second year, then self-sows.

Scarlet Sage

Electric red spikes that hummingbirds zero in on. Common bedding plant that earns its spot every year.

Sedum

Succulent leaves, tough as nails. Ages to deep crimson in autumn.

Shenandoah Switchgrass

Compact selection that turns vivid burgundy-red in late summer earlier than any other switchgrass.

Snapdragon

Vertical flower spikes with squeeze-open blooms. Kids love them.

Sunflower

Pure joy on a stalk. Birds love the seeds, kids love the spectacle.

Switchgrass

Upright native grass with airy seed heads. Gold and red fall color.

Tickseed

Cheerful native daisy that blooms for months with almost no care.

Trumpet Vine

Aggressive native vine with fiery trumpets. Hummingbird highway.

Yarrow

Flat-topped clusters on ferny foliage. Thrives on neglect in poor soil.

Zinnia

Easy-grow annual with electric colors. Cut-and-come-again champion.