Five roses: what a small bunch shows about the build
A spiral needs turns, and five stems do not give you enough of them. The classic technique lays every stem across the last one at an angle, so the bundle closes on itself and stands up unaided, but that only starts working somewhere above seven or nine. At this count a florist is doing something simpler and, in one respect, harder.
There is nowhere to hide a mistake.
The parallel bunch
Most small counts are built straight rather than turned. One stem sits in the centre, slightly proud of the rest. The other four gather round it a half head lower, which is what gives the bunch a domed top instead of a flat one. Leaves are stripped from the whole length that will sit inside the wrapping, since a leaf caught under the tie holds damp against the stem. The binding itself is a single point rather than a run of tape up the stems. Done properly, the whole thing can be lifted by that one point without a head shifting.
The binding point decides everything after that. Tie too high and the heads press together and lose their shape, tie too low and the stems splay inside the wrapping before the courier reaches the door.
You can test the result in a second. Stand the bunch upright on a table without holding it: a properly bound one stays put, a hurried one leans and then slides.
What a rushed build leaves behind
Turn the bunch over and look at the cut ends. On a careful build they finish level, at a single clean angle, made in one pass with a sharp blade. Ends of five different lengths mean the stems were bundled first and trimmed afterwards, which pulls the heads out of line at the top.
Then look at the heights. The dome should step down evenly from the centre stem, without one bloom sitting a full head below its neighbour.
Thorns are the last giveaway. They are stripped from the part of the stem you hold, and stubs left along that stretch are the surest sign that somebody was working against the clock.
Stem length changes more than you expect
The same five heads behave differently on a short cut and a long one. At around forty centimetres you get a compact bunch that lives on a desk and needs no special vessel. At eighty the stems are thicker, the thorns larger and the bunch reads from across a room, but it also needs a tall vase with the water line somewhere near half the stem.
Ask about length before you ask about anything else.
Where five works
A small count carries no announcement, which is precisely its use. It goes to a colleague on an ordinary morning, to a neighbour who watered your plants, to a doctor or a teacher where a large armful would create an obligation, or alongside a present where the flowers are the smaller half of the gift.
It fails in the opposite setting. On a laid table, at a formal presentation or anywhere the bunch is seen from more than a few paces, five roses disappear among the objects around them, and no amount of paper will rescue that.
Keep the greenery light as well. Two stems of eucalyptus already outweigh the flowers at this size, and what arrives is a mixed arrangement rather than roses. If a recipient in Doha wants more presence, a longer cut and a larger head will do more than any filler.