Epimedium 'Sphinx Twinkler' has long, narrow, serrated, evergreen leaves emerging red topped with yellow and white spurred flowers.

Epimedium 'Yokihi' is a red and yellow two-toned hybrid fairy wings or barrenwort.

Epiphyllum cartagense is an orchid cactus with narrow-petaled, spidery white flowers up to three inches across from red buds.

Epiphyllum guatemalense 'Monstrosa' is an epiphytic cactus with twisted and spiraled succulent leaves.

Epiphyllum oxypetalum is the famous queen of the night orchid cactus whose fragrant flowers bloom for just one night.

Epiphyllum pumilum is closely related to E. oxypetalum, the famous queen of the night, but with smaller flowers.

Epiphyllum 'Orange & White King' is an orchid cactus with large white flowers highlighted with yellow and orange.

Orchid cactus (Epiphyllum hybrids) are epiphytic cacti that make easy and interesting houseplants.

Orchid cactus (Epiphyllum hybrids) are epiphytic cacti that make easy and interesting houseplants.

Loquats (Eriobotrya japonica) are small, handsome subtropical trees with leathery, dark green leaves and delicious, deep yellow fruit.

Eriogonum umbellatum 'Kannah Creek' has bright yellow umbels maturing to orange atop green foliage turning purple-red in winter.

Eryngium yuccifolium is a near native to Ontario known as rattlesnake master with yucca-like foliage and tall stems of white thimbles.

Erysimum Erysistible 'Bronze Rose' is a zone 5 wallflower with orange, peach, and lavender pink flowers.

Erysimum 'Bowles Me Away' has elegant grey-green mounds and lilac-purple flowers blooming almost continuously through the season.

Erysimum linifolium Sunstrong Orange has bright orange, fragrant flowers from March to July and into fall.

Cheerful yellow flowers, sweet fragrance and evergreen variegated foliage.

Erysimum 'Honeyberry' has fragrant, magenta and purple flowers over variegated mounds of wallflower foliage.

Erysimum 'Winter Orchid' has gorgeous, fragrant, bicolour wallflower with orange-red and purple flowers.

Eucalyptus pauciflora, commonly known as Snow Gum is one of the hardiest of this genus reaching 25 to 40 feet tall.