A Story From the Field: The Flower Shop That Never Closed

Auntie Daeng has sold flowers from a shophouse near Pak Khlong Talat, Bangkok's famous flower market, since her mother ran the business. The front of the shop is lined with plastic buckets of roses, chrysanthemums, marigolds and lotus buds. In the middle stands a long wooden table where her staff sit for hours threading jasmine and marigold garlands and putting bouquets together. At the back is a small walk-in cold room for expensive blooms and flowers customers have ordered in advance. The shop opens almost every day of the year, because fresh flowers simply cannot wait.

This year the Chao Phraya rose high enough to spill into the lanes behind the market. Water covered the shop floor to mid-shin and stayed for several days. The power was cut for safety, so the cold room stopped working. For the first time in years, Auntie Daeng had to close her doors.

When the water went down and she opened the shop, the smell that met her was nothing like the sweet scent she knew. It was the smell of rotting stems soaked in dirty water, mixed with mud and heavy dampness. The buckets were coated in slime. The garland table had water stains and white fuzzy mold. The floral foam on the bottom shelf had soaked up muddy water and changed color. Worst of all was the cold room. Sealed for days without power, it had turned into a hot, stuffy box. The flowers inside had collapsed into a soft brown mess, the rubber door gasket was speckled with black, and stagnant water sat on the floor.

Her phone would not stop ringing: customers who wanted garlands for the temple, restaurants that order table flowers every week, and a young couple who had booked bridal bouquets for next month. Everyone asked the same thing: "When will you reopen?" Auntie Daeng knew she could not just rush back. Fresh flowers brought into a room still full of mold would wilt and spot far faster than normal, and every lost stem is money gone.

If you run a florist, a garland stall, a wholesale flower business or any operation with a flower cold room around Pak Khlong Talat, Phra Nakhon or nearby, this article will help you put the recovery in the right order so you can start selling again with confidence.

Why Flower Shops and Cold Rooms Need Careful Recovery

Every flood-touched flower has to go

Floodwater that has passed over roads, drains and market lanes is often contaminated with sewage and bacteria such as E. coli. Cut flowers and foliage standing in floodwater draw that water up through their stems and rot quickly. More importantly, flowers from a shop like this are threaded into garlands, folded into offerings, carried to temples and sometimes used to decorate food, passing through many hands along the way. Fresh flowers, leaves, banana leaves and any other fresh material that touched floodwater should be thrown away, not rinsed and sold.

A cold room without power becomes a mold incubator

Cold rooms are built to be airtight. When the power stays off for days, the temperature inside climbs, and moisture from rotting flowers and standing water lets mold and bacteria grow very fast, especially along door gaskets, in floor joints, on shelving and around the evaporator coil. If new flowers go straight back in, leftover spores can cause brown spots, bruised petals and early wilting. For a florist that means losing money every single day.

The health of the people in the shop

Staff who sit threading garlands for hours in a damp shop may start coughing, sneezing or feeling congested as mold spores trigger allergies or asthma. Anyone wading through floodwater during clean-up faces a higher risk of leptospirosis, diarrheal illness and fungal skin infections, particularly with the small cuts from rose thorns and scissors that florists get all the time. Rubber gloves, rubber boots and a mask belong in every clean-up session.

A reputation built on freshness

A florist sells freshness and fragrance. If a customer walks in and smells mustiness or stagnant water, or buys a bouquet that droops by evening, they will quietly try the next stall. Around a market with dozens of competitors, that is very easy to do.

Step One: Sort Everything. What Goes, What Gets Washed, What Needs a Technician

• Discard all of it: fresh flowers, foliage, banana leaves, finished garlands and any fresh material that touched floodwater or rotted in the warm cold room.
• Discard all of it: floral foam, wrapping paper, fabric ribbon and cardboard boxes that got wet. These materials soak up dirty water deep inside.
• Wash and disinfect: plastic flower buckets, glass or glazed ceramic vases, stem cutters, knives and stainless steel shelving. Scrub away slime and mud first, then disinfect and let everything dry.
• Call a technician: the refrigeration unit, compressor, evaporator fans and wiring of the cold room should be checked by a refrigeration technician before it is switched back on. Sockets and wiring in the shop should be checked by an electrician.
• Judge case by case: wooden tables and shelves. If the wood is swollen, soft or has mold deep in the grain, it may need replacing. If the damage is only on the surface, clean it and let it dry completely.

Important: any flowers, potted plants, ornamental plants or other living plants that are still in good condition must be moved out of the shop and the cold room before disinfection begins. We never ozone-treat flowers or plants, because ozone damages petals and leaves, causing burn marks and wilting.

Why the Familiar Fixes Are Not Enough for a Flower Shop

Scrubbing the floor with bleach and reopening

Bleach can clean hard surfaces, but it does not reach behind shelves, into the cold room door gasket, up onto the ceiling or around the evaporator coil. A lingering bleach smell can also harm some delicate flowers. Bleach should never be mixed with other products.

Leaving the cold room door open to air out

Airing helps a little, but the rotten, musty smell that has soaked into the insulated panels of a cold room rarely leaves on its own, and the humid air of the flood season keeps mold growing.

Letting the scent of flowers cover the smell

Some florists assume fresh flowers will mask the mustiness. The sources of the odor, mold and bacteria, are still there, and they will shorten the life of every new delivery.

Painting over mold on the shop walls

If the wall is still damp and the mold is alive, it will push the paint into blisters and come back as black spots within weeks. Dry the wall, clean it and disinfect it before repainting.

The Solution: Disinfection and Ozone Treatment of the Empty Shop and Cold Room by WHD

Once damaged flowers are gone, good flowers and plants have been moved out, mud has been washed away and a technician has checked the refrigeration, the World Health Disinfection (WHD) team deals with the germs, mold and odors that are still hiding, using two methods that work together.

1. ULV disinfection fogging

The team uses CHEMGENE HLD4H disinfectant in an ultra-low-volume fogger that turns it into a very fine mist. The mist reaches the walls and floor of the cold room, the door gasket, the shelving, the underside of the garland table and the corners a cloth cannot reach, helping reduce bacteria and mold on surfaces. Details are on the disinfection service page.

2. Ozone treatment of empty rooms

After fogging, the empty shop or cold room is closed and a professional ozone generator runs at a controlled dose for a set time. Ozone helps destroy airborne mold spores and break down the molecules behind rotten and musty smells embedded in walls and ceilings. Read more about the ozone treatment service.

How the work runs in a florist

1. Site survey: the team checks the flood line, where mold is growing, the condition of the cold room, drains and ventilation.
2. Clean-up advice: guidance on discarding damaged flowers and materials, washing buckets and floors, and coordinating with the refrigeration technician before work begins.
3. Preparing the space: every flower, plant, ornamental plant and person leaves the shop and the cold room. Cash registers and delicate control panels are covered or removed.
4. Disinfection fogging: CHEMGENE HLD4H mist is applied across the shop front, worktables, shelving, cold room and back area.
5. Ozone treatment: the area is sealed and treated according to its size. No people, animals, flowers or plants may be inside at any point.
6. Ventilation: doors are opened and fans run until the ozone has broken down. People return only after that, and new flowers go in only once ventilation is fully complete.
7. Re-check: the team checks for remaining odor and mold and advises on any damp spots.

Safety note: during ozone treatment there must be no people, pets, flowers, plants or any living greenery in the space, and the area must be fully ventilated before anyone goes back in. The rubber door gasket and sensitive electronics are protected by using a controlled ozone dose or by covering them.

10 Reasons Florists Around Pak Khlong Talat Choose WHD

1. A clean cold room before the next delivery, thanks to the disinfection fogging service.
2. Fewer mold spores that cause brown spots and early wilting.
3. Rotten and musty odors removed from cold room panels with ozone treatment of the empty room.
4. Reaches door gaskets and shelf corners that a cloth misses.
5. No harm to flowers or plants, because the team insists every plant leaves before work starts.
6. Easier breathing for garland makers who sit in the shop all day.
7. Quality disinfectant: CHEMGENE HLD4H, used in WHD service work.
8. Work planned alongside your refrigeration technician, so each job follows the last in the right order.
9. Confidence to take orders again, from temple garlands to wedding bouquets.
10. Simple ongoing care with the CHEMGENE HLD4H spray for worktables and scissors, plus the mosquito spraying service around the shop when mosquitoes surge.

Before and After the Flower Shop Recovery

What a Florist Might Tell You (Example Scenario)

"I thought washing the buckets and scrubbing the floor would be enough. But the cold room smelled so bad that the flowers I put in wilted far too quickly. The team told me from the start that every flower and plant had to come out first, and they would never put ozone on flowers. Once the work was done and the rooms were aired out, the cold room smelled much better, and my staff said they could sit and thread garlands without feeling stuffed up."

— Auntie Daeng, florist near Pak Khlong Talat (a representative scenario based on field work)

A Reopening Plan for Florists, Phase by Phase

Every shop is different, but most florists follow a similar path from the day the water leaves to the day the first fresh bucket goes back out front. Working in phases helps you avoid the two expensive mistakes: buying new flowers too early, or paying for treatment before the basics are done.

Phase 1: Safety and records

Do not switch anything on until an electrician has checked the sockets, lights and cold room wiring. Photograph the water line, the damaged stock, the cold room and the worktables. Suppliers, landlords and insurers will often ask for these photos.

Phase 2: Clear out and wash

Remove every flood-touched flower, leaf, garland, piece of foam and roll of wet paper. Scrub buckets, vases and tools. Wash the mud off the floor and the cold room panels, then let everything dry with the doors open and fans running.

Phase 3: Refrigeration check

Have a refrigeration technician inspect the compressor, fans, drain line and controls of the cold room. Floodwater can damage electrical components and block the condensate drain, which would create new dampness later.

Phase 4: Professional treatment

With all flowers and plants out and surfaces clean, WHD fogs the shop and cold room with disinfectant, ozone-treats the empty rooms and ventilates them thoroughly, then re-checks for odor and mold.

Phase 5: Restart the cold room and restock

Once ventilation is complete, switch the cold room back on and let it reach its normal temperature before bringing in fresh flowers from your growers and wholesalers. For the first few weeks, wipe the worktable, buckets and cutters every day, and keep an eye on the door gasket and floor joints for any new dark spots.

Everyday Habits That Keep a Flower Cold Room Healthy

• Change bucket water often and scrub buckets regularly, so slime never gets a chance to build up.
• Remove fallen petals, leaves and stem trimmings from the cold room floor at the end of every day.
• Wipe the door gasket weekly and check that the door seals properly.
• Keep the condensate drain clear so water does not pool under the shelves.
• Do not overpack the cold room; leave space for air to circulate around buckets.
• Keep a simple log of temperature and any unusual smells, so problems are spotted early.

These habits do not replace professional disinfection after a flood, but they make it much less likely that mold and odor will build up again in the months that follow. They also help your flowers last longer on the customer's table, which is the best advertisement any florist can have. A cold room that is kept clean, dry and well sealed is cheaper to run as well, because the refrigeration does not have to fight against warm, damp air leaking in around a worn gasket.

Keeping Customers and Orders on Track While You Recover

For many florists, the hardest part of a flood is not the cleaning but the calendar. Weddings, merit-making ceremonies, funerals and restaurant contracts do not move just because the shop was under water. A little planning can protect those relationships while the shop is closed.

Be honest about timing

Contact customers with upcoming orders as soon as you know roughly how long the recovery will take. Explain that flood-touched flowers have been thrown away and that the shop and cold room are being cleaned, checked and treated before any new stock comes in. Most customers would rather hear a clear, realistic date than an optimistic promise that slips.

Work with trusted partners for urgent orders

If a wedding or ceremony falls during your closure, consider arranging the flowers through a trusted grower, wholesaler or fellow florist in the market whose premises were not affected, and assemble the arrangement in a clean, dry space. Make sure any flowers you use for these orders never came into contact with floodwater.

Talk to your growers and wholesalers

Let your regular suppliers know when the cold room will be ready, so the first fresh delivery arrives after ventilation is finished and the room has cooled down. Starting with smaller deliveries for the first week lets you check that flowers are lasting as long as they should before you return to full volume.

Share what you did

A short message to your LINE group or a simple sign at the shop front explaining the steps you took, from discarding stock to disinfection and ozone treatment of the empty rooms, reassures customers without any need for exaggeration.

Frequently Asked Questions

1. Can you ozone-treat the flowers to disinfect them?

No. We never ozone-treat flowers, plants or any living greenery, because ozone damages petals and leaves. Ozone treatment is carried out only in an empty shop or an empty cold room.

2. Only the stem ends touched the floodwater. Can I trim them and sell the flowers?

We do not recommend it. Flowers draw water up through the stem, so germs from floodwater can travel into the bloom, and these flowers are often threaded into garlands or offered at temples, passing through many hands. Throw them all away.

3. Do I need a technician to look at the cold room first?

Yes. A refrigeration technician and an electrician should check the system first, because equipment that was under water may be damaged or unsafe. WHD disinfects and ozone-treats the room itself; we do not repair refrigeration systems.

4. How long will the shop be closed?

It depends on the size of the shop, how bad the damage is and how long the cold room repairs take. The fogging and ozone work itself is usually fairly quick. The team will give you an estimate after the site survey.

5. Can I put flowers back in the cold room straight after the ozone treatment?

Wait until ventilation is fully complete, then switch on the refrigeration, let the room cool down, and bring in fresh flowers.

6. Can I still use floral foam that is still sealed in its wrapping?

If the plastic wrapping is fully intact and never got wet, it may be usable. If the wrapping is torn, wet or smells, throw it away.

Bring Back the Fresh Scent of Your Flower Shop

Talk to the WHD team about disinfection fogging and ozone treatment for your florist and flower cold room around Pak Khlong Talat, Phra Nakhon and nearby districts.

Book Ozone Treatment – Click Here

See the Disinfection Service – Click Here

Call 065-556-6294 · LINE @whd268 · Email worldhealthdisinfection@gmail.com

Related Links

• Ozone treatment for odors and chemical residue
• Residential ozone disinfection
• Master Ozone Generator
• All articles

Health reference: World Health Organization (WHO): Floods · Department of Health, Thailand