How to Choose Summer Flowers in South Florida

Picking Summer Flowers That Actually Last in South Florida

Summer in South Florida runs hot and humid from late May through October. That matters when you're choosing flowers — some stems that look beautiful in a cooler climate wilt within hours here. This guide focuses on what holds up, what to avoid, and how to get the most out of whatever arrangement you bring home or send.

Why Heat and Humidity Change Everything

Most cut flowers prefer temperatures between 34°F and 38°F in storage. Once an arrangement leaves the cooler and sits in a Miami living room or a Fort Lauderdale foyer with afternoon sun, moisture and heat accelerate bacterial growth in the water and soften petals faster. This isn't a reason to avoid fresh flowers in summer — it's a reason to choose the right ones.

Stems that handle South Florida summers well:

• Sunflowers — thick stems, low water draw, hold shape well in humidity
• Tropical heliconias — native-adjacent, bred for this climate
• Anthurium — waxy spathe resists moisture damage, lasts 2–3 weeks with basic care
• Tropical ginger (Alpinia) — architectural, almost immune to heat wilt
• Alstroemeria — underrated for summer; individual florets open over a week
• Spray chrysanthemums — workhorse summer stem, widely available, durable
• Phalaenopsis orchids — for gifting in a pot rather than a cut arrangement; thrives indoors in humidity

Stems that struggle in summer heat:

• Delicate garden roses (particularly light-pink and white varieties) — petal burn happens fast
• Ranunculus — cool-season flower, rarely available locally in summer and wilts quickly
• Sweet peas — essentially unavailable in South Florida June through September
• Lily of the valley — not suited to subtropical conditions

This doesn't mean you can never use garden roses in July. It means you should keep them in air conditioning and away from direct light, and expect a shorter vase life — closer to 4 days than 7.

Best Summer Occasions and What to Order for Each

Graduations (May–August)

Graduation season overlaps almost perfectly with early South Florida summer. Sunflowers mixed with orange ginger and yellow alstroemeria read festive without being fussy. Avoid white arrangements if they're going to sit on a table outside during an outdoor ceremony — white petals show heat stress first.

Summer Birthdays

Tropical arrangements with anthurium, bird of paradise, and heliconia make strong birthday gifts because they last and look like something the recipient can't easily buy at a grocery store. These also travel well across South Florida zip codes without refrigeration during the drive.

Weddings and Events

Summer weddings in South Florida are almost always climate-controlled indoors or at waterfront venues with ocean breezes. Work with your florist on ceremony-to-reception timing — cut arrangements that sit outside for a ceremony starting at 4 PM in August will look different by 7 PM indoors. Tropical stems and succulents hold better during outdoor ceremonies than mixed garden arrangements.

For centerpieces, low arrangements of spray chrysanthemums, anthurium, and tropical foliage keep better than tall, airy designs that expose more stem surface to warm air.

How to Keep Summer Arrangements Fresh Longer

1. Cut stems at a 45-degree angle before placing in water — even if they were already cut at the shop. This reopens the uptake surface.
2. Change the water every two days. In summer humidity, bacteria multiply faster in standing water.
3. Keep out of direct sun and away from vents. A kitchen counter under a south-facing window is the hardest possible spot for cut flowers in July.
4. Use the flower food packet that comes with the arrangement. It contains a mild acidifier and bactericide. It matters more in summer than in winter.
5. If you're refrigerating overnight, make sure no fruit is in the same compartment — ethylene gas from ripening fruit accelerates bloom aging.

What to Ask Your Florist

When you come into any of our South Florida locations or order online, a few questions will get you a better result:

• "What came in fresh this week that's good for summer?" Local availability shifts week to week.
• "How long will this last in a home without a lot of AC?" Honest answer sets the right expectation.
• "Can I swap in tropical stems if a specific flower isn't available?" Florists can almost always substitute within a color story.
• "What's the last time I can order for same-day delivery?" For any day you need flowers delivered, the cutoff is 2:30 PM.

Seasonal Availability Notes for South Florida

Some flowers people associate with summer are actually counter-seasonal in South Florida. Peonies, for example, peak in late spring at wholesale but are mostly gone by late June. Hydrangeas are available year-round through imports but cost more to source in summer and show heat stress faster than most customers expect.

Tropicals and sunflowers are genuinely in peak availability June through September — local and regional growers in South Florida, the Caribbean, and Central America are producing at full volume. If you're flexible on stem type and focused on color palette instead, summer is actually one of the better times to get strong arrangements at fair prices.

Related Guides

For more on specific occasions and flower care, see the guides linked below.