Echinacea Sunseekers 'Apple Green' is a coneflower with semi-double green and white flowers.

Echinacea Sunseekers 'Magenta' is a coneflower with non-fading vibrant magenta flower petals coupled and green eyes.

Echinacea Sunseekers 'Mineola' is a bold coneflower with semi-double orange-tangerine flowers and big brown cones.

Echinacea Sunseekers 'Orange' is a bold coneflower with single flowers in hot orange and big orange-brown cones.

Echinacea Sunseekers 'Pumpkin Pie' is a bold coneflower with semi-double orange flowers and big green cones

Echinacea Sunseekers 'Rainbow' is an amazing coneflower with semi-double salmon pink flowers.

Echinacea Sunseekers 'Red' is an amazing coneflower with bold red, single flowers.

Echinacea Sunseekers 'Salmon' is a coneflower with semi-double salmon-pink flowers maturing to soft pink.

Echinacea Sunseekers 'Sweet Fuchsia' is a gorgeous coneflower with semi-double fuchsia-pink flowers and brown cones.

Echinacea Sunseekers 'Watermelon' is a bold coneflower with semi-double flowers in bright pink and big orange-brown cones.

Echinacea Sunseekers 'White Perfection' is a semi-double coneflower with green and creamy-white flowers.

No other coneflower is the colour of ripe cantaloupe! Echinacea 'Supreme Cataloupe' is one unique cultivar!

Echinacea 'Supreme Elegance' has rich rose-red double coneflowers with fragrance and a compact habit.

Echinacea 'Supreme Flamingo' has rich, coral and shrimp pink colours that combine for an unbelievable exclamation of colour.

Echinacea 'Sweet Chili' has sizzling, red, double cones and reflexed, orange-red ray florets.

Echinacea 'Sweet Sandia' has single, broad petaled, bicolour flowers of watermelon-pink and lime-green around a burnt-orange cone.

Echinops sphaerocephalus 'Arctic Glow' has spiny grey-green leaves and intriguing, spherical, white flower heads in summer.

Echium amoenum has short, red, feathery exclamation marks for the hot border that will excite hummingbirds from miles around.

Engelmannia peristenia produces bright, cheerful, yellow daisies from late spring until frost atop rosettes of grey-green, dissected foliage.

Enkianthus 'Bruce Briggs' is stunning with the deepest red flowers of the genus. Great fall colour.

Enkianthus 'Lipstick' has pendulous white flowers with a deep pink lipstick kiss at the tips of the hanging bells.

Eomecon chionantha or snow poppy is a rhizomatous perennial that bears small pure white poppy-like flowers.