Contents:
- Why August Is One of the Best Months for Blooms
- Top August Flowers in Season
- Sunflowers
- Dahlias
- Zinnias
- Lisianthus
- Black-Eyed Susans (Rudbeckia)
- Celosia
- Globe Amaranth
- Late-Summer Roses
- Flowers That Are Fading or Limited in August
- August Flower Budget Estimates for Events
- Practical Tips for Working With August Flowers
- Common Mistakes to Avoid
- Frequently Asked Questions
- What are the best flowers for a wedding in August?
- Are peonies available in August?
- Which august flowers in season last the longest in a vase?
- Where can I buy August seasonal flowers in the US?
- Do seasonal flowers cost less in August?
- Plan Your Event Around What’s Actually Growing
August is actually one of the most flower-abundant months in the US growing calendar. More than 60% of American wedding florists report August as their busiest month — not because couples settle for what’s available, but because late-summer fields are bursting with options. The variety is wider than spring, the stems are longer, and the colors run deeper.
That said, knowing which flowers peak in August — and which are starting to fade — saves you money and prevents the disappointment of ordering something that won’t look its best on the day.
Why August Is One of the Best Months for Blooms
The US summer growing season hits full stride in August. Long days, warm nights, and accumulated soil heat mean that many annuals and perennials are producing their heaviest flushes of bloom. Flower farms in California’s Central Valley, the Pacific Northwest, and the Mid-Atlantic states are all shipping at high volume through this month.
For event planners and couples, this translates to two practical advantages: lower per-stem prices due to abundant supply, and more flexibility with color palettes. A sunflower stem that costs $2.50 at the florist in May might run $1.00–$1.50 in August when domestic fields are in full production.
Top August Flowers in Season
Sunflowers
The quintessential August bloom. Domestic sunflower production peaks between late July and mid-September. Standard varieties (Lemon Queen, Autumn Beauty, ProCut Gold) grow 18–24 inches per stem at this time of year. Expect to pay $0.75–$1.50 per stem from a wholesale market, or $3–$5 from a retail florist. They’re heat-tolerant and vase-stable for 7–10 days when cut properly.
Dahlias
Dahlias are arguably the most spectacular august flowers in season. They range from 2-inch pompons to 10-inch dinner plate varieties. Pacific Northwest farms — especially in Washington and Oregon — produce the majority of US dahlias, with peak harvest running from late July through October. Café au Lait, a creamy blush-peach variety, is the most requested wedding dahlia in the country. Wholesale pricing: $1.50–$4.00 per stem depending on head size.
Zinnias
Zinnias thrive in heat, making August their strongest month. Available in virtually every color except blue, they’re inexpensive ($0.50–$1.25/stem wholesale) and remarkably long-lasting — up to 10 days in a vase. The Benary’s Giant series produces heads 4–5 inches across, substantial enough to anchor a centerpiece. Cut-flower farms in the Southeast and Midwest ship heavily through August.
Lisianthus
Often mistaken for peonies or garden roses in photographs, lisianthus is fully in season through August. The ruffled blooms open progressively over 14–21 days, making them one of the best value flowers for extended arrangements. A bunch of 5 stems retails for $12–$18. They’re delicate in appearance but surprisingly sturdy once hydrated.
Black-Eyed Susans (Rudbeckia)
A native North American wildflower that signals late summer like nothing else. Black-eyed Susans work beautifully in casual, garden-style arrangements and hold well — 7–9 days cut. Wholesale: $0.40–$0.80 per stem. They pair naturally with celosia, sunflowers, and bronze chrysanthemums for warm-toned palettes.
Celosia
Celosia comes in two distinct forms: the velvety plumed type and the brain-like crested cockscomb. Both peak in August. Colors range from pale yellow to deep burgundy and magenta. The dried texture adds dimension to fresh arrangements, and stems last 10–14 days. Wholesale: $0.80–$1.50 per stem.
Globe Amaranth
Small, clover-like blooms that hold their color through drying — useful for both fresh and preserved arrangements. Deep magenta, lavender, and white are the most common colors available domestically in August. A filler flower priced at $0.30–$0.60 per stem wholesale.
Late-Summer Roses
Garden roses (David Austin varieties especially) have a secondary flush in late summer. While not as abundant as their June peak, roses from Ecuadorian and Colombian farms ship year-round and are widely available. In August, expect domestic garden roses to be slightly more available than in July, while imported stems remain consistently priced at $1.50–$3.50 per stem wholesale.
Flowers That Are Fading or Limited in August
Peonies are gone by early July in most of the US — if a florist quotes you peonies for an August event without specifying an Alaskan or imported source, ask questions. Tulips and daffodils are entirely out of season. Lilacs finished blooming months ago. Sweet peas, which peak in May–June, are largely unavailable domestically by August.
This doesn’t mean these flowers are impossible to source — it means they’ll be imported, expensive, and less fresh. A peony that retails for $5–$8 in June can cost $12–$20 in August.
August Flower Budget Estimates for Events
Here’s a practical breakdown for a mid-sized event (say, a wedding with 10 centerpieces, bridal bouquet, and basic ceremony flowers):
- Budget-friendly (sunflowers, zinnias, black-eyed Susans, celosia): $300–$600 in wholesale flowers
- Mid-range (dahlias, lisianthus, roses, globe amaranth): $700–$1,400 in wholesale flowers
- Premium (dinner plate dahlias, garden roses, specialty foliage): $1,500–$2,800 in wholesale flowers
Florist labor and design fees typically add 2–3x the flower cost. Many couples save significantly by sourcing from a local farmers’ market or a direct-from-farm online vendor like Mayesh Wholesale or FiftyFlowers, which serves DIY buyers.
Practical Tips for Working With August Flowers
Heat is the main enemy of cut flowers in August. If you’re in a region where outdoor temperatures regularly exceed 90°F, plan accordingly.
- Condition flowers in a cool space (60–65°F) for at least 24 hours before an event.
- Avoid leaving arrangements in direct sunlight or near heat vents.
- Recut stems at a 45-degree angle and change vase water every two days.
- For outdoor events, choose heat-tolerant varieties: sunflowers, zinnias, and celosia hold up significantly better than roses or lisianthus in high temperatures.
- Order 10–15% more stems than you think you need — summer heat increases the discard rate.
Common Mistakes to Avoid
- Assuming dahlias are available everywhere: Dahlias are regionally grown and not all wholesalers stock them. Confirm availability with your florist at least 3 weeks before your event.
- Ordering out-of-season flowers without checking import costs: Peonies, sweet peas, or ranunculus in August will cost 2–3x their spring price and arrive with a shorter vase life.
- Skipping a water source for outdoor events: Flowers need to stay hydrated. Dry floral foam or arrangements without water sources fail fast in August heat.
- Confusing flower names at the market: “Rudbeckia” and “Echinacea” look similar at a glance but behave differently in arrangements. Ask your vendor to confirm the species.
- Booking a florist without confirming their farm sources: Florists who source domestically in August will generally deliver fresher product than those relying entirely on imports during peak domestic season.
Frequently Asked Questions
What are the best flowers for a wedding in August?
Dahlias, garden roses, lisianthus, sunflowers, and zinnias are the strongest choices for August weddings. They’re in peak domestic season, widely available, and offer strong color variety. Dahlias in particular provide a high-end look at a mid-range price point during this month.
Are peonies available in August?
Domestic peonies are not in season in August — their US season runs May through early July. Imported peonies (typically from Alaska or Chile) can be sourced, but expect to pay significantly more and receive flowers with a shorter vase life than spring-harvested stems.
Which august flowers in season last the longest in a vase?
Zinnias, lisianthus, and celosia have the best vase life among August blooms — typically 10–14 days with proper care. Sunflowers last 7–10 days. Dahlias are shorter at 5–7 days but are worth the tradeoff for visual impact.
Where can I buy August seasonal flowers in the US?
Local farmers’ markets are the freshest source. For bulk or wholesale quantities, Mayesh Wholesale, FiftyFlowers, and Whole Blossoms ship to DIY buyers. For professionally arranged flowers, confirm with local florists that they’re sourcing from domestic farms during this season.
Do seasonal flowers cost less in August?
Yes — for flowers that are domestically in season, August prices are among the lowest of the year. Sunflowers, zinnias, black-eyed Susans, and celosia are all at peak supply. Flowers that require importing (peonies, tulips) will cost more in August than in their natural season.
Plan Your Event Around What’s Actually Growing
The smartest event planners and couples work with the season rather than against it. August gives you an extraordinarily rich palette to work with — bold golds, deep burgundies, soft blushes, and vivid magentas — all at prices that reflect peak domestic production. Build your color story around what’s thriving in the field right now, and you’ll spend less, get fresher flowers, and end up with arrangements that look like they belong in August rather than fighting it.
Start by locking in your florist or farm source 4–6 weeks out, confirm dahlia and specialty stem availability early, and give yourself a 10% budget buffer for heat-related replacements. The flowers are there — it’s just a matter of knowing which ones to reach for.
