The Wholesale Flower Buyer's Glossary: 60+ Terms Explained

September 11, 2026

The flower trade has a language of its own, and a lot of it is never written down anywhere — you are simply expected to know that "EB" is a box, "disbud" is a growing method and "guard petals" are meant to be removed. This glossary gathers the terms a wholesale buyer actually meets, from grading and packing to post-harvest science and trade jargon, and defines each one plainly. Keep it as a reference; share it with new team members; use it to compare suppliers on equal terms.

Grades and measurements

Grade — The classification of a flower by measurable quality, most importantly stem length and head size, plus uniformity, freshness and freedom from damage. Grades let you buy a crop you have not seen.

Stem length — How a flower is sized, in centimetres (e.g. 40, 50, 60, 70, 80, 90+). Longer stems come from stronger plants and cost more; the right length depends on the job.

Head size / bloom size — The diameter of the flower head. Critical for roses, and the primary grade for hydrangeas, where price rises with the diameter.

Open stage / maturity — How far a flower has opened. Flowers travel best slightly closed and should open to peak after arrival; "tight," "cracking," "half-open" and "open" describe the stages.

Uniformity — How consistently every stem in a bunch matches. Tight grading means uniform stems that behave the same in the vase; loose grading hides surprises.

Select / fancy — Common names for top grades (largest heads, longest stems, best quality) that carry a premium.

Flower types and forms

Focal flower — The eye-catching centrepiece of an arrangement (rose, hydrangea, large chrysanthemum).

Secondary flower — A supporting bloom that adds colour and spread below the focal (spray roses, spray carnations).

Filler — Small-flowered or airy material that adds volume and texture cheaply (gypsophila, limonium, waxflower).

Greenery / foliage — Leafy material that frames a design and sets its shape (eucalyptus, ruscus, ferns).

Disbud (bloom) — A growing method where side buds are removed so one large terminal flower forms per stem; common for chrysanthemums and some carnations.

Spray — A stem that carries several smaller blooms on branches (spray roses, spray carnations, spray chrysanthemums); more blooms per stem.

Standard carnation — A carnation with one large bloom per stem, as opposed to a spray (mini) carnation.

Garden rose — A fuller, more romantic, often fragrant rose style prized for weddings and luxury design.

Packing and logistics

Bunch — The standard grouped unit flowers are sold in, commonly 10, 20 or 25 stems. Knowing the count lets you calculate a true price per stem.

Box / carton — The shipping unit. Freight is charged largely by volume and weight, so fuller boxes lower cost per stem.

EB (eight-bunch) / jumbo / full box — The large standard flower carton.

HB (half box) — Half the length of a full box.

QB (quarter box) — A smaller carton, a quarter of the full size.

Hard box — A stiffer carton used to protect delicate heads (large roses, hydrangeas) from crushing.

Dry pack — Flowers cooled and boxed without water for transport; standard for hardy stems on fast journeys, keeping weight and cost down.

Wet pack — Flowers transported with their stems in water or gel; used for thirsty or sensitive flowers, adding weight and cost.

Procona — A reusable bucket-style container flowers travel in standing in water, protecting hydration for sensitive product.

Consolidation — Combining products from several farms or growers into one coordinated order and shipment, under one standard and one point of contact.

Phytosanitary certificate — Official documentation certifying a plant shipment meets the destination country's health requirements; essential for cross-border flower trade.

Cold chain — The unbroken sequence of refrigerated handling from harvest to buyer that preserves vase life (see its own guide).

Pre-cooling — Rapidly removing field heat from just-harvested flowers to start the cold chain strong.

Post-harvest science

Vase life — How long a flower stays attractive in the vase after purchase. The key measure of quality performance.

Ethylene — An invisible plant hormone that accelerates ageing and petal drop, produced by ripening fruit, decay, exhaust and flowers themselves. Sensitive flowers are treated for it at good farms.

Ethylene-sensitive — Describes flowers (like carnations) that age fast on ethylene exposure and benefit from treatment and careful storage.

Botrytis — A grey mould that develops in damp, poorly ventilated conditions and ruins petals; controlled by good handling, ventilation and cold, dry storage.

Bent neck — When a flower head droops on a weakened stem just below the bloom, usually from dehydration or air blockage in the stem; classic in roses that missed hydration.

Blown / over-blown — A flower opened too far, past its saleable peak.

Conditioning — The process of preparing flowers on arrival: fresh cut, clean water, flower food, a cool deep drink before display.

Flower food / preservative — The sachet solution that feeds blooms, lowers water pH and fights bacteria, meaningfully extending vase life.

Hydration — Getting and keeping water into the stem; critical for thirsty flowers like hydrangeas.

Guard petals — The outer petals left on a rose to protect the bloom in transit; often bruised-looking and meant to be removed, not a defect.

Node — The swollen joint on a stem (notably carnations); cut between nodes, not through them, for best water uptake.

Turgidity — The firmness a well-hydrated stem and bloom have; loss of turgidity is the start of wilting.

Trade and commercial terms

Standing order / program — A recurring, planned weekly (or regular) order agreed with a supplier, as opposed to one-off spot buying.

Spot buying — Purchasing on the open market for immediate needs, at whatever price and availability the moment offers; most expensive around peaks.

Lead time — The gap between committing an order and the flowers being ready or delivered; long for peak crops that are grown to order.

Peak — A demand surge tied to an event (Valentine's, Women's Day, Mother's Day, All Saints', winter holidays) that lifts prices and tightens availability.

Origin — The country/region a flower is grown in (e.g. Colombia, Ecuador); drives variety, quality and reliability.

Shrinkage — Flowers bought but never sold — the trade's quiet margin killer, driven mostly by freshness and handling.

Landed cost — The true total cost of flowers delivered to you, including farm price, freight and handling; the number that actually matters, not the headline price.

Grower / farm partner — The plantation that grows the flowers; a consolidating brand works across a network of them.

MPS / Florverde / Rainforest Alliance — Major sustainability and quality certifications in floriculture (see the sustainability guide).

Buyer's FAQ

What does EB mean on a flower box?

EB means "eight-bunch," the large standard flower carton (also called a jumbo or full box). HB is a half box and QB a quarter box.

What are guard petals?

The outer petals left on a rose to protect the bloom in transit. They often look bruised and are meant to be peeled off, revealing the clean bloom beneath — a sign of protection, not poor quality.

What is the difference between a focal, secondary and filler flower?

Focal flowers are the centrepieces (roses, hydrangeas); secondary flowers add colour and spread (spray roses); fillers add cheap volume and texture (gypsophila). A balanced bouquet uses all three.

What is shrinkage in the flower trade?

Flowers you bought but could not sell before they faded — the biggest quiet drain on a flower business's profit, driven mostly by freshness at sourcing and handling on arrival.

What is a standing order or program?

A recurring, planned order agreed with a supplier, which locks quality and availability and lets you buy closer to real demand — the opposite of one-off spot buying.

Buying with a partner who speaks your language

At Vibra we work the way this glossary describes — clear grades, consolidated orders, a protected cold chain and planned programs across Colombia and Ecuador — so buying is simple and predictable. Tell us what your program needs and we will build it with you.

Build your program