Viola walteri 'Silver Gem' is a fantastic trailing, ground-covering violet with silver foliage and reblooming purple flowers.

Viola Starry Night gives us fragrant, dusky lavender blossoms with a yellow centre.

Viola Celestial 'Twilight' offers impressionistic-looking flowers with rich combination of mauves and golds.

'Rebecca' is our best selling Viola with impressionistic looking cream, yellow and purple colours. Compact, long blooming.

Viola x wittrockiana 'Bunny Ears' has unusual petals that resemble bunny ears in shades of pink, magenta, yellow, and white.

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

Weigela 'All Summer Peach' is a compact reblooming shrub with glowing peach, pink, and yellow tubular flowers.

Weigela 'All Summer Red' is a compact reblooming shrub with bright red tubular flowers from spring until autumn.

Weigela 'Electric Love' is a dwarf ornamental shrub with tubular, red flowers and dark foliage.

Weigela 'Tuxedo' is a mid-sized ornamental shrub with fragrant, funnel-shaped, white flowers and dark foliage.

Wisteria frutescens 'Amethyst Falls' is a daintier, better behaved version of the Chinese wisteria for small spaces.

Gordonia grandiflora is a remarkable semi-evergreen tree with lancolate leaves and fragrant, camellia-like flowers.

Yucca filamentosa 'Excalibur' forms rosettes of spiky, strap-like leaves coloured blue-green to powdery blue.

Yucca rigida is a dramatic, trunk-forming, hardy species with a crown of stiff, sword-like, powder blue leaves.

Zantedeschia 'Albomaculata' is a spotted calla lily with ivory-white trumpet-shaped flowers.

Zantedeschia 'Black Forest' is a spotted calla lily with sultry purple-black trumpet-shaped flowers.

Zantedeschia 'Creme/Cream' is a spotted calla lily with creamy white and green flowers.

Zantedeschia 'Dubai Nights' is a stunning velvety purple calla lily with white edging to each spathe.

Zantedeschia 'Flame' is a spotted calla lily that displays bi-colours of yellow and orange-red.

Zantedeschia 'Garnet Glow' is a spotted calla lily with rosy-pink, trumpet-shaped flowers.

Zantedeschia 'Majestic Red' displays dark red trumpet-shaped flowers with black bases.

Zantedeschia 'Millenium Gold' is a spotted calla lily with bright yellow trumpet-shaped flowers with green bases.

Zantedeschia 'Pasja' is a calla lily with flowers that open purple and lighten towards shades of pink.

Zinnia grandiflora 'Gold on Blue' is hardy to zone 4 with fine, textured, bluish-green foliage topped with golden yellow flowers all summer.