Why don't these look consistent together?

Because they come from two different eras. The outlined florals are Zapf Dingbats, a print typeface encoded as a set, while the coloured ones are emoji added much later. Mixing the two looks unintentional, pick from one group.

Which ones work on older phones?

The dingbat florals. The emoji flowers need a colour emoji font, which older Android builds sometimes lack or render inconsistently.

Flower symbols, copy and paste

Tap any symbol to copy it. 9 characters, each one verified against the Unicode database.

Ready-made combos

Tap to copy the whole arrangement. These are the framed forms people use in bios, built from characters that are checked the same way the grid above is.

Dividers and borders

Box-drawing characters join without gaps when repeated, which is what makes these read as one rule rather than a row of dashes. Each character counts against your limit, so a long divider is an expensive piece of decoration.

In a bio

Three lines you can adapt. Replace the words and keep the spacing.

Floral marks are mostly from Zapf Dingbats, a widely licensed print typeface encoded into Unicode as a set. A few newer additions are emoji and render in colour instead. The two groups do not sit together comfortably, so pick from one or the other rather than mixing them.

A small set, and two different eras inside it

Nine characters, which is fewer than any other category here, and they do not belong together.

The first few are dingbats: printing ornaments encoded from Zapf Dingbats, a typeface widely licensed since the 1970s. They are monochrome, they take your text colour, and they are well supported.

The rest are emoji, added decades later. They render as full-colour images at a fixed size and cannot be recoloured.

Why mixing them looks wrong

Put a dingbat floral next to an emoji cherry blossom and the result looks accidental, because one is line art following your theme and the other is a small painting. Choose from one group.

Support

The dingbats render nearly everywhere. The emoji need a colour emoji font, which most modern devices have and some older Android builds handle inconsistently. If your bio has to work on cheap handsets, the dingbats are the safer half.

Using them well

Nine characters is a small set, and the honest advice is to use one rather than several. Florals are visually busy at bio size, and two of them either side of a name compete with the name.

The dingbat florals suit a divider or a single accent. The emoji flowers suit a caption, where the surrounding text is longer and a colour image sits more comfortably.

If you want a floral frame rather than a single mark, the combos above are built to keep the character cost down: two characters either side rather than four, which matters against a 30-character display name.