Garden color palette generator

Why gardens with a colour rule look expensive

Walk through a nursery in May and every plant is in flower, and every one of them is a different colour. Buy one of each and the bed at home looks like the nursery: busy, and somehow worse than any single plant in it. The gardens that stop people on the street run on a rule. Three colours, maybe four, with one of them doing most of the work and the others as accents. The rule is what makes a $200 planting look like a $2,000 one.

The palette also has to work when nothing is flowering, which in most climates is 40 weeks of the year. That is where foliage colour comes in: silver, burgundy, chartreuse and the dozens of greens. A palette built only from flowers has a good month and eleven ordinary ones. A palette that puts half its colour into leaves and bark and stems holds up in February.

This tool gives you eight schemes that designers reach for repeatedly, each with real hex values you can drop into a planting plan, a mood board or the AI designer, and a plant list that has been filtered for the scheme rather than pulled from a catalogue.

The eight schemes

A short brief for each, and what kind of garden it suits. The upkeep column is relative: silver and grey drought plantings are close to zero once established, pastel cottage borders are the most work.

How to use a palette in a real bed

Pick one colour to dominate at about 60 percent of the planting, a second at 30 and the third as an accent at 10. In a cool blues scheme that might be blue salvia and catmint for the 60, purple alliums and verbena for the 30, and one white rose for the 10. The proportions are what the eye reads as intentional. Equal thirds read as a mix.

Then repeat. Three of the same plant in a group, and the same group three times along the bed, beats nine different plants every time. Repetition is also what makes the palette survive the seasons, because at least one of your repeated plants is always doing something.

Check heights before you buy. The plant list gives them because it is the second most common mistake after too many colours: the tallest plant at the front, hiding everything behind it. Back row 3 ft and up, middle 18 in to 3 ft, front under 18 in. And check the sun column against the sunlight calculator's answer for that bed, since a perfect palette in the wrong light is a list of plants you will replace next year.

• 60/30/10: one dominant colour, one supporting, one accent.
• Groups of three or five of the same plant, repeated along the bed.
• Put half your colour in foliage so the scheme works in winter.
• Match the plant list to the light the bed actually gets, not the light you wish it had.

Colour theory that matters outdoors, and the part that does not

Warm colours (red, orange, yellow) come forward and make a space feel smaller and more energetic. Cool colours (blue, purple, silver) recede and make it feel bigger and calmer. That is the one rule worth knowing. A narrow yard planted in reds at the far end feels shorter; the same yard with blues and whites at the end feels longer. Use it.

The rest of the colour wheel is less useful outside than in a paint store, because gardens have a permanent green background that changes everything. Green is complementary to red, which is why red flowers pop and blue flowers can vanish against foliage. White reads brighter than any other colour at dusk and is the only one visible after dark, which is the whole idea of a moon garden. And yellow, the colour most people avoid, is the one that reads as sunshine from a distance and carries a bed in early spring when nothing else is out.

Light also changes colour. Pastels wash out in hot midday sun and glow in the soft light of northern gardens or evening. Saturated tropicals look right in strong sun and garish under grey skies. If you garden in the South or Southwest, lean saturated or silver. In the Pacific Northwest and the Northeast, pastels and cool schemes hold their colour better.

Frequently asked questions