Armoracia rusticana is known as horseradish and is harvested for its pungent, fleshy roots and used as sides in culinary dishes.

Cardamine angustata (syn. Dentaria heterophylla) a good hellebore companion w/ clusters of small white to pink flowers in early to mid spring.

Cardamine concatenata (syn. Dentaria laciniata) is a mustard relative with clusters of small, white to pink, four-petaled flowers in early spring.

Cardamine diphylla is a cute wintergreen groundcover with clusters of small, white, four-petaled flowers in spring popular with bees and butterflies.

Big, bold and beautiful, Crambe cordifolia is all about presence and drama with huge 6 foot high and four foot wide clouds of white flowers.

Crambe maritima has dramatic, ruffled, silver blue leaves that you can sautee and eat! Or just enjoy their beauty in the garden.

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

Iberis sempervirens First Flush 'Lavender' is a candytuft with a long blooming period of bi-coloured lavender and white flowers.

Golden foliage changes to chartreuse green with age. Topped with classic candy tuft white flowers.

Iberis x hybrida Mermaid 'Lavender' is a candytuft with deep lavender flowers.

Iberis 'Sweetheart' is a stunning new colour of flower for the candytufts: lavender! Oh la la!

Wasabia japonica is the true wasabi, not the fake stuff served in most Japanese restaurants. 'Daruma' has great vigour and flavour.

Wasabia japonica is the true wasabi, not the fake stuff served in Japanese restaurants. 'Mazuma' has great vigour and more heat.