Frequently Asked Questions – 100 questions about flowers

It's almost always about the flower having problems in its microscopic vascular system (xylem). During transport the stem can dry slightly, cool down and warm up again, and air pockets (embolisms) easily form that break the water column. At the same time the cut surface leaks organic material that becomes food for bacteria – and bacteria build biofilm that acts like blockages. Some species also leak latex/phenols that oxidise and clog vessels. The quickest fix is therefore unglamorous but effective: wash the vase thoroughly, cut off 1–2 cm with a sharp knife (scissors crush), remove leaves below the waterline, change water on the first day and keep cool. It's not magic – it's plumbing in plant format.

Roses droop when flower tissue loses turgor (cell pressure). This happens when water supply cannot keep up with evaporation. The most common cause is a combination of xylem blockage near the cut (bacteria/biofilm/particles) and crushing damage from scissors. Then flow is restricted and petals end up in water deficit. For roses, often helping: fresh cut with a knife, clean vase, cool place for the first day, and no leaves in the water.

pH primarily affects microbes and water flow. Slightly acidic water makes it harder for many bacteria to grow, reducing biofilm and blockage formation in xylem. It can also affect mineral solubility so you get less buildup. But pH is never a substitute for hygiene: a dirty vase beats perfect pH every single day.

Sugar can provide energy and help buds open – but it's also five-star catering for bacteria. Without an antibacterial component and proper good hygiene you get rapid microbial growth, slimy water and water uptake restriction. That's why flower food works better: it typically combines carbohydrates with bacteria-inhibiting agents and often pH adjustment too.

Ethylene is a gaseous hormone signal that controls ripening and ageing. Stress (cold, damage, drying) can trigger production, and fruit can release ethylene gas during ripening. Ethylene-sensitive flowers respond by accelerating senescence: petals loosen, leaves yellow and the bouquet can feel like it went from wow to goodbye in an afternoon. Practically: keep bouquets cool and ventilated. And don't place ethylene-sensitive flowers next to the fruit bowl.

Tulips continue to grow after harvest and are very responsive to light (phototropism) and temperature. That means the stem actively bends towards light sources, while the tissue continues to stretch. Warmth and low air humidity increase evaporation and can make stems softer. To reduce the drama: keep them cooler, avoid direct sun/heaters, use a vase that provides support and rotate the bouquet if light comes from one side.

Burnt edges are often localised drying and cell damage. The edges are most exposed to air and lose water faster – especially in warm, dry air or draughts. Transport stress (rapid temperature swings) can cause microscopic damage that later shows as necrosis. Solutions: keep cool, no heat source nearby, and ensure good water flow (clean vase + fresh cut).

Almost always: temperature, hygiene and supply chain. Every degree warmer increases respiration and evaporation, and bacteria move faster. A dirty vase gives bacteria a head start from minute one. Crushed cut surface and leaves in water accelerate blockage formation. Differences in how fresh the flowers actually were when you bought them also play a role.

Leaves submerged in water break down and leak organic material. This becomes food for bacteria that form biofilm and can block xylem. Also, decomposition can lower oxygen in the water and create an environment where microbes thrive even better. It's the simplest rule that gives the greatest effect: nothing green in the water, full stop.

For certain woody stems, lukewarm water can initially improve flow because viscosity drops and it can help start water uptake in more resistant vessels. But warm water over time is bad: bacteria grow faster and the flower respirates more, shortening vase life. A reasonable strategy is: get uptake started – then keep it cool.

Senescence is programmed ageing: gradual breakdown and redistribution of resources controlled by signals (including ethylene in sensitive species). Sudden collapse is often hydraulic failure: water uptake stops rapidly (embolisms or blockage) and tissue loses turgor in hours. The difference matters because collapse sometimes can be rescued with a fresh cut + hygiene + coolness, while senescence is more a matter of thanks for the memories.

Buds need both functioning water uptake and sufficient energy/reserves to expand cells and open petals. If they were harvested too early they may lack reserves and stall. If xylem flow is poor (blockage/crushed cut) water doesn't reach them. Transport stress (cold/heat shock) can also disrupt the opening process.

It's biofilm: bacteria growing rapidly and building a slimy mat. This happens if the vase wasn't properly clean, if stems leak lots of plant sap, if the water was warm, or if you introduced microbes via hands/tools. The remedy is brutally simple: wash the vase, change the water, make a fresh cut.

Hard water contains more calcium/magnesium, which can affect vase buildup and how pH behaves (buffering). It can also influence how certain flower foods function. The effect on the flower's lifespan varies greatly between species and is often less important than temperature and hygiene.

Scent consists of volatile compounds affected by temperature, light, air circulation and daily rhythm. In the shop there are many bouquets that together build scent volume, and air circulation can carry the scent better. At home, scent might seem weaker if the room is still air or if you quickly become accustomed to it.

Because fruit can release ethylene gas. Ethylene spreads in the air and can trigger ageing in ethylene-sensitive cut flowers. So no contact is needed – just the same air.

More water isn't always better if it means leaves end up below the waterline, or if you don't change the water. Then bacteria get more volume to grow in, more organic load and more time before you notice something's wrong. The ideal level is: enough for uptake – but without anything green sitting and rotting in the water.

Scissors squeeze and crush tissue, which can compress xylem and create poor flow. A sharp knife gives a clean cut surface with open vessels, improving water uptake. It's the same principle as not wanting to pinch a drinking straw when you're trying to drink.

Pulsing is a controlled pretreatment where flowers receive a solution for a certain time (often carbohydrates + antimicrobial components + sometimes pH adjustment). The goal is to fill energy stores, improve water uptake and increase vase life during transport and shop storage.

Temperature. A cool place slows respiration, microbial growth and ethylene effects. Many people hunt for secret tricks, but a bouquet standing in a warm, dry spot is essentially on the express route to wilting. Focus your effort on cool + clean + good cut.

Carnation, sweet pea, delphinium, lisianthus and certain orchids are classically ethylene-sensitive. Roses, tulips and chrysanthemums are more tolerant but not immune. Practically speaking: sensitive species should not stand near fruit bowls or exhaust.

It varies enormously depending on species, handling and conditions. Chrysanthemum and alstroemeria can last 2–3 weeks under good conditions. Roses often land on 5–10 days. Tulips and daffodils maybe 5–7 days. Sweet pea can be done in 3–5 days.

Peonies have large, thin petals that evaporate water quickly once the flower opens. Also, they're sensitive to heat and dry air. The trick is to buy them as buds – then you get to see the whole opening process and they last longer overall.

Sometimes. If the problem is hydraulic (blockage, air pockets) a fresh cut under water + clean vase + cool place gives a second chance. If it's senescence (natural ageing) or serious cell damage there's not much to do. Rule of thumb: the faster you act, the better the chance.

Supply and demand in its purest form. Demand for red roses explodes around 14th February while production can't increase as quickly. Transport and logistics become more pressured, and quality standards are high.

Cut roses are bred for long vase life, uniform size, transport tolerance and often less scent. Garden roses prioritise scent, flower form and garden traits – but can be more fragile as a cut flower.

Scent was deprioritised in cut rose breeding because vase life, colour and form were more important for the industry. Scent requires energy from the plant and can shorten lifespan. The result is that many modern cut roses are scentless.

Check the stem's cut surface – it should be light in colour, not dark brown or slimy. Petals should sit firmly and not loosen at light touch. Leaves should be green and firm, not yellowing or limp. The bud should feel firm but not rock hard.

It's pollen from the anthers. When lilies open, the pollen-bearing anthers are exposed, and the pollen is intensely coloured and sticks easily. The trick is to gently remove the anthers before they start shedding pollen.

That used to be standard advice, but modern research says no. Crushing damages tissue, creates more surfaces for bacteria to grow on and can actually worsen water uptake. A clean, angled cut with a sharp knife gives better results.

Daffodils contain mucilage and alkaloids that leak when cut. This liquid can actually damage other flowers in the same vase by blocking their vessels. The solution: let daffodils stand in their own water for at least 6 hours after cutting.

Generally, flowers with similar water needs and that don't release harmful substances work well together. Roses, lisianthus, alstroemeria and chrysanthemums are common bouquet-friendly species. Avoid mixing daffodils or poinsettias with others without pretreatment.

Indirect light is usually best. Direct sunlight heats the flowers, increases evaporation and speeds ageing. Some flowers (like tulips) react strongly to light and bend towards it. A bright place without direct sun is the golden mean.

Leaves are consumable for a cut flower. When the plant no longer has roots and has limited energy it prioritises the flower over the leaves. Chlorophyll breaks down, nutrients are redistributed and leaves yellow.

Absolutely. Dahlia, zinnia, cosmos, sunflower, sweet pea and delphinium are excellent for home growing. The advantage is you can harvest whenever you like and get flowers that never needed to be transported.

A bouquet is flowers bound together, often by hand, that can be placed in a vase of choice. An arrangement is flowers arranged in a container, often with floral foam (oasis) or other structure to hold them in place.

Floral foam is a foam-like material that absorbs water and holds flowers in place in arrangements. It's practical for florists but can be difficult to water sufficiently. For vase life at home, a clean vase with fresh water almost always wins.

Keep the bouquet upright as much as possible. If the stems have been in water, wrap wet kitchen paper around the cuts and cover with plastic wrap for short journeys. Avoid leaving the bouquet in a warm car.

Several factors play in: production cost (orchids take years to grow, sunflowers weeks), transport requirements (some need chilling the whole way), vase life (short lifespan = higher wastage = higher price), season and demand.

Fairtrade certification means growers have received a guaranteed minimum price and an extra premium for social projects, plus certain working conditions and environmental requirements are met. It doesn't automatically mean the flowers are organic.

It's complicated. Air freight from Africa has a significant carbon footprint, but growing in warm climates requires less energy than heated greenhouses in Northern Europe. Seasonal flowers grown locally are generally best.

Lilies (Lilium and Hemerocallis) are extremely toxic to cats – all parts of the plant, including pollen and vase water, can cause kidney failure. Tulips, daffodils, azaleas and oleander are also toxic. If you have a cat: avoid lilies completely.

Many of the same as for cats: lilies, tulips (especially bulbs), daffodils, azaleas, oleander and amaryllis. Keep toxic flowers out of reach and contact a vet if you suspect ingestion.

Some flowers produce less or heavier pollen that doesn't spread as easily: roses (double varieties), carnations, orchids, hydrangea and peonies are often better choices. Avoid lilies, chrysanthemums, daisy and other composites.

The combination of heat (from hands, lighting, summer warmth), stress (no water for several hours) and sometimes poor preparation creates tough conditions. During the day: keep the bouquet cool and in water between photographs.

Hardy choices include: roses (choose sturdy varieties), orchids, succulents, protea and dried elements. Avoid sensitive flowers like garden peonies, sweet pea and hydrangea in strong heat.

Prices vary enormously: from around £50–100 for a simpler bouquet to £200–400 or more for luxury versions with imported flowers, unusual varieties or complex design.

At least 2–3 months to secure your florist and discuss design. For popular dates (summer Saturdays) 6 months might be wise. The actual flowers are ordered nearer the time, but the florist needs planning time.

A hand-tied bouquet is bound by hand in a spiral technique where stems are laid in the same direction so the bouquet stands by itself on a flat surface. It's the classic florist technique for bouquets.

The basic principle: Pick a focal flower to start with. Add flowers in a spiral movement – all stems lean towards the same side. Vary height and texture. Fill with foliage. Bind with twine where the stems cross. Cut stems level.

Eucalyptus is popular for its colour and scent, but dries quickly in heat. Pistacia is durable and neutral. Salal is robust and dark green. Aspidistra leaves add drama. Ferns provide texture but wilt faster.

Baby's breath (Gypsophila) is cheap, durable, airy and neutral – it fills out without taking over. It got its name because it's traditionally been used in bridal bouquets. Trends swing: sometimes it's out, sometimes back in again.

Visually, peonies often have more, thinner petals in a more airy pattern, whilst roses have more structured petal rows. Peonies bloom for only a few weeks in early summer (May–June in the UK), whilst roses are available year-round.

Oriental lilies (Stargazer etc.) fill a room with scent. Hyacinths are intensely sweet. Tuberose and gardenia are classically perfumed. Freesia has a light, sweet scent. Garden roses (certain varieties) smell more than cut roses.

Short answer: choose a different flower. The scent comes from the flower's production of volatile compounds and can't be switched off. Better ventilation dilutes the scent. Asian lilies generally smell less than Oriental ones.

Chrysanthemums last long and tolerate a bit of neglect. Alstroemeria is durable and affordable. Carnations are hardy and come in many colours. Germini (miniature gerbera) are cheerier and easier than large gerberas.

Gerberas are produced efficiently in large volumes, grow relatively quickly, and have steady demand without the extreme peaks roses see on Valentine's Day or Mother's Day. Production cost per stem is lower.

Gerberas have hollow stems that easily bend and can suffer water damage. Don't use too much water – 5–7 cm is enough. Use a vase that supports the stems. Make a fresh cut with a sharp knife. Avoid wetting the petals.

Gerberas have soft, hollow stems without the stable xylem that woody flowers have. When water uptake doesn't match evaporation, the tissue loses turgor and the stem bends. It often happens just below the flower head.

Germini is simply the miniature variant of gerbera – the same plant but bred for smaller flowers (around 6–8 cm diameter versus gerbera's 10–12 cm). Germini often have multiple flowers per stem or are sold in bunches.

Avoid strongly scented flowers (lilies, hyacinths) as they can disturb sensitive patients. Also avoid allergen-causing varieties and soil. Cut flowers in a vase are often better than arrangements with floral foam. Many hospitals have rules – check first.

White lilies are classically associated with grief and purity in Western tradition. White roses symbolise respect and honour. Chrysanthemums are used in many cultures as funeral flowers. Forget-me-nots represent remembrance.

Traditionally a flower bouquet is given, ideally in cheerful colours. Red roses are classic but optional. Summer flowers that suit the season (late May/June) work well: peonies, delphiniums, stocks.

Colour symbolism varies between cultures, but in British tradition: red roses = romantic love, yellow roses = friendship, white flowers = purity or grief, pink = tenderness, orange = energy, purple = mystery.

Red roses are the universal symbol of romantic love in Western culture – thanks to centuries of poetry, art and marketing. A single red rose says I love you without words.

The old meaning of yellow roses as jealousy comes from Victorian flower language. Today they're usually seen as cheerful, sunny and friendly. In the UK, yellow roses are most associated with friendship and joy.

It depends entirely on the culture and the people. General tips: avoid funeral flowers, avoid flowers with negative meanings in their culture, avoid strongly scented flowers unless you know they'll appreciate it. The safest bet: choose a neutral, beautiful bouquet.

Avoid red roses (too obviously romantic). Choose mixed bouquets in cheerful colours, sunflowers (friendship, joy), or elegant choices like orchids. Yellow and orange tones signal friendship rather than romance.

Flower language (floriography) was a Victorian system where different flowers had specific meanings. Today it's used mostly decoratively or nostalgically – few people know all the meanings. But basic symbolism lives on.

Roses dominate by far, followed by tulips, chrysanthemums and gerberas. Seasonal flowers like peonies (early summer) and hyacinths (spring) have peaks. Cut greenery like eucalyptus has grown in popularity.

The Netherlands became the centre of tulip growing in the 1600s, including the famous tulip mania when bulbs sold for astronomical sums. The climate and soil suit tulips, and the country developed advanced growing techniques.

Tulip mania (1634–1637) was a speculative bubble in the Netherlands where tulip bulbs, especially unusual varieties, sold for extreme prices – single bulbs cost more than houses. The bubble burst dramatically.

Outdoors: winter pansies and snowdrops (late winter). Christmas roses (Helleborus) can bloom in mild winters. As cut flowers, imported flowers are the norm: amaryllis is a Christmas classic, hyacinths are forced for winter.

Hyacinth bulbs need a cooling period to simulate winter (around 10–12 weeks in the fridge). Then place them in a hyacinth glass with water just below the bulb and put them somewhere light and cool. They'll start growing and flower within a few weeks.

The poinsettia comes from Mexico where it naturally blooms around Christmas time (December). It was introduced to the USA in the 1820s. The red parts are actually bracts – the actual flowers are the small yellow bits in the centre.

Bright spot away from direct sun, room temperature (avoid draughts and radiators), moderate watering once the soil has dried out. Don't buy specimens that have been outside the shop in cold – cold damage isn't visible immediately but kills the plant later.

Yes, but it requires planning. From October: give it total darkness for at least 14 hours per day for 8–10 weeks. Light during the day, darkness at night. It's fiddly – most people just buy a new one every year.

Chrysanthemums can last 3–4 weeks under ideal conditions. Alstroemeria often lasts 2–3 weeks. Carnations are also long-lasting (2 weeks+). Orchids can last for weeks. Exotic flowers like protea and anthurium are extremely long-lasting.

Stocks are notoriously short-lived – often just 3–5 days. Poppies lose petals quickly. Delphinium florets can start to loosen after a few days. Ranunculus is beautiful but delicate. Garden peonies in full bloom don't have long left.

Signs of age: yellowing or drooping leaves, browning cut end, slimy water in the bucket, petals coming loose when touched, buds that feel soft/empty, bad smell. Fresh flowers have firm stems, healthy leaves, and a light-coloured cut.

Conditioning is the process florists do to prepare flowers for sale: cut the stems, remove lower leaves, place in clean water with optional nutrients, and let them drink their fill in a cool room.

Cut flower food typically contains three components: carbohydrates (sugar) for energy, an antibacterial agent to slow microbial growth, and often a pH-lowering agent. It helps, but clean vase + clean water + fresh cut gets you 80 per cent of the way.

Yes, but getting the balance right is tricky. A common home recipe: 1 litre water + 2 tbsp lemon juice + 1 tbsp sugar + a few drops of bleach. The problem is that dosing easily goes wrong. Commercial cut flower food is optimised.

Copper has weak antibacterial properties, but the effect of a small coin in a vase is minimal. You don't get enough copper ions to make a real difference compared to clean water + regular changes. Wash the vase instead.

Aspirin can lower pH somewhat and have some antibacterial effect, but doses used at home are often wrong. Some studies show minimal or no effect compared to clean water and good hygiene.

Lemonade contains sugar (energy) and citric acid (pH-lowering) – two of the three components in cut flower food. The problem: it lacks an antibacterial component and the sugar content can be too high. Dilute with water if you try it.

Ideally: every 1–2 days, especially in warm weather. Minimum: every 2–3 days with a fresh cut and cleaned vase. If the water becomes cloudy or smells – change it immediately regardless of schedule.

That's biofilm – a colony of bacteria that's built a protective slime layer. It forms faster in warm water with organic matter. Biofilm sticks firmly and needs proper scrubbing with washing-up liquid and a brush.

Easiest method: hang the bouquet upside down in a dark, dry, airy place for 2–3 weeks. Flowers that dry well: hydrangea, lavender, eucalyptus, grasses, statice. Silica gel gives faster and better colour retention.

Preserved (conserved) flowers have undergone a process where plant sap is replaced with glycerol. The result is flowers that look fresh and keep their shape for months or years without water or care.

Some flowers are edible: pansies, nasturtiums, violets, calendula, elderflower, rose petals (unsprayed), courgette flowers. But: not all flowers are safe – daffodils, lily of the valley and many garden flowers are toxic. Never buy cut flowers from a florist to eat.

Cut flowers are grown in greenhouses (controlled climate) or outdoors (tropical climate). Major producers are in the Netherlands (greenhouses), Kenya, Ethiopia, Ecuador and Colombia. Production is industrial with controlled environments and global logistics.

The Netherlands is the major hub – even flowers grown in Africa or South America often pass through Dutch auctions. Direct imports from Kenya, Ethiopia and Ecuador are increasing. UK-grown cut flowers exist but on a small scale.

Royal FloraHolland is the world's largest flower auction, based in Aalsmeer, Netherlands. Billions of flowers pass through the facility annually. It's the hub of global flower trade.

Flowers grown in the right season are cheaper: tulips in spring, peonies in June, sunflowers in summer. Out of season, they must be imported further or grown in greenhouses with higher energy costs.

Locally grown seasonal flowers generally have the lowest environmental impact. UK garden flowers in summer (dahlia, sunflower, zinnia) are a good choice. Dried and preserved flowers have a long lifespan per unit of environmental cost.

You need: florist training (recommended), business plan, suitable premises with cooling and water, supplier agreements, startup capital. The romantic picture of simply selling flowers clashes with the reality of early mornings, waste and thin margins.

There are NVQs and various training courses in floristry. Apprenticeship with an experienced florist is valuable. You need: colour sense, creativity, physical stamina and business understanding.

Florists can specialise in: wedding floristry, events and corporate work, funeral floristry, hotels and restaurants, the film industry, teaching, or become content creators in the flower space.

Top five: 1) Leaving leaves in the water. 2) Not changing the water often enough. 3) Putting the bouquet in direct sun or near a heat source. 4) Using a dirty vase. 5) Forgetting to make a fresh cut on the stems.

It can be due to drying out during transport, too rapid temperature increase, or the variety's natural form. Try rehydrating in cool water, avoid heat, and be patient. Sometimes they recover, sometimes the damage is done.

Warmer temperature (room temperature rather than the fridge) and light speed up opening. You can gently massage the bud. Cut flower food with sugar helps. But be aware: rapid opening = shorter overall lifespan.

Modern cut roses have been bred for durability and appearance – fragrance has often been sacrificed. Additionally, rose fragrance is best released at certain temperatures and times of day. If you want fragrant roses: look specifically for scented varieties.

Bright location without direct sun. Water when the substrate (often bark, not soil) has dried out. Overwatering is the most common cause of death. Water by lowering the pot and allowing it to drain. Room temperature works fine. They can live for years with proper care.

Orchid flowering lasts weeks to months – when flowers drop it is often natural. Sudden loss of blooms can be caused by moving shock, drought, overwatering, cold or ethylene exposure. The plant is often healthy even without flowers.

You can: a) cut the spike at the base for a cleaner look and new flowers on a fresh spike, or b) cut above a node hoping for side shoots. Option a) often gives a stronger comeback, option b) can give faster but weaker blooms.

Phalaenopsis can flower 1–2 times per year, and flowering can last 2–3 months each time. Regular care, proper light and a period of nighttime temperature drop can stimulate flowering. Patience is required.