The plants you should plant in your garden to lower your water bill

These plants don't need much watering and can help you conserve water and save on bills

Kangaroo Paw Flower / Anigozanthos manglesii
(Image credit: Photos from Japan, Asia and othe of the world/Getty)

With awareness growing of the need to make our gardening practices more sustainable, plants that help conserve water are becoming more and more popular. But what if choosing your plants carefully could also help you save on water bills?

You may have heard about some of these best drought-tolerant plants, but others are likely to be new flowers to try out in your garden. A new study* reveals them to be the lowest maintenance options, requiring the least amounts of water to thrive.

1. Kangaroo paw flower

Kangaroo Paw Flower / Anigozanthos manglesii

(Image credit: Photos from Japan, Asia and othe of the world/ Getty)

The exotic-looking Kangaroo Paw Flower comes from Australia and knows a thing or two about drought and relentless sun. It has very little requirements, though prefers sandy and slightly acidic soil. Kangaroo Paw will grow as a perennial in US zones 10 to 11, or as an annual in colder climates. Hardly needs any care after first being planted out.

2. Trumpet vine

Campsis radicans, or Trumpet Vine

(Image credit: www.victoriawlaka.com/Getty)

This easy-care climbing plant is perfect if you need to cover a wall or other large area quickly. In fact, trumpet vine grows so well that it may become invasive, so you may choose to grow it in a container. Drought tolerant and grows in US zones 4-9. 

3. California poppy

Californian poppies in bloom

(Image credit: Michael Reining / 500px/Getty)

You've probably seen these along roads or in people's yards, and these really are tough plants that can deal with almost no watering at all for months on end. As you'll learn from our guide on how to grow poppies, these easy-care flowers thrive in poor soil, so you don't need to worry about adding compost or fertilizing.  

4. Echinacea

pink Echinacea purpurea flowers also known as Coneflowers

(Image credit: Jacky Parker Photography/ Getty)

It is so easy to learn how to grow echinacea – or coneflower, as it's also known. A medicinal plant that's unfairly somewhat out of fashion, this purple flower doesn't need much water and will flower all through and summer and fall, up to the first frosts. 

5. Salvia

Salvia 'Rose Queen'

(Image credit: Mayerberg/iStock/Getty Images Plus/Getty Images)

There's so much to like about salvias – they are one the best bee-friendly plants and if you want to know how to grow salvias, it couldn't be simpler. Just plug them into the sunniest spot in the garden, and that's about it. They will flower all summer long, with many varieties going on into autumn. 

* A study by Uswitch

Anna Cottrell
Anna Cottrell

Anna is a keen urban gardener, with David Austin roses and Japanese acers among her favourite plants. She moved into the world of interiors from academic research in the field of literature and urban space a couple of years ago. She's always been interested in how people make houses into homes, and how our concepts of what's stylish change over time.