Flowers by colour

Pink flowers, and why two pinks can look wrong together

Pink is the most planted colour in the garden and the easiest to get wrong, because there are two of them. Cool pink has blue in it, warm pink has orange, and side by side they make each other look grubby. Here is which is which.

Deep rose Peony Garden phlox Cosmos Blush rose Apple blossom Shell pink Almost white
The flowers

Every pink flower in the library

59 of the 82 flowers here carry this colour, ordered by how much of it the photograph actually shows. The library keeps one picture per flower and most of these come in several colours.

Why

Why pink is the colour it is

Pink is red at low volume. The pigments are the same anthocyanins that make a flower crimson or scarlet, simply present in smaller quantity or spread through paler tissue. Which pink you get depends on which anthocyanin the plant builds: cyanidin leans blue and gives the cool, cold pinks of peony and lilac, while pelargonidin leans orange and gives the warm corals of geranium and impatiens. Breeders have pushed pink harder than any other colour because it is the safest seller, which is why the shelves carry forty shades of it and no honest label.

The test that takes two seconds

Hold the flower against a white page. If the pink shifts towards purple it is cool; if it shifts towards peach it is warm. Buy one temperature per bed and the planting reads as deliberate rather than accidental.

The honest sort

How pink each one really is

The same flowers again, this time grouped by how much of the colour is actually there in ordinary daylight rather than on a label.

Decided by your soil1Pink in limey ground, blue in sour ground, same plant.
Putting it together

What pink sits well with

Cool pink and deep purpleReads rich and old-fashioned; the safest pink pairing there is.
Coral pink and bronze foliageWarm on warm. Add nothing blue.
Blush and pure whiteAlmost no contrast, and that is the point at a wedding.
Meaning

What pink says

Pink carries affection without the declaration that red makes: gratitude, admiration, gentleness, and in a lighter shade the beginning of something. It is the colour most often sent to say thank you.