Hydrangea serrata 'Fuji Waterfall' has lovely 5-6 inch lacecaps with white, sterile, double florets that resemble shooting stars.

Hydrangea serrata Tiny Tuff Stuff is super compact at just 2 feet tall blue, lavender, or pink lacecaps.

Hydrangea serrata Tiny Tuff Stuff is super compact at just 2 feet tall with blue, lavender, or pink lacecaps. Perfect for pots.

Hydrangea Fairytrail Bride is the first ever cascade hydrangea with unique trailing stems that brim with white and green flowers.

Hydrastis canadensis or goldenseal has has large, attractive leaves, white flowers that emerge right from the leaf surface later replaced with a red fruit like a raspberry.

Hymenocallis littoralis is a very spider-like species with white flowers with small coronas and narrow petals.

Hymenocallis 'Zwanenburg’ is noted for having large white flowers that resemble pure white, spidery daffodils with nice fragrance.

Hypericum x inodorum Magical Midnight Glow is a shrubby St. John's wort with bright yellow flowers cherry red fruit.

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

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

'Warlsind' is a Juno iris has white flowers with yellow and burgundy markings on the tips of the falls.

Iris ensata Dinner Plate 'Blueberry Pie' has large, 6 inch wide, purple blooms with violet strokes and yellow centres.

Iris ensata Dinner Plate ‘Tum Tim Gros’ has large, 6 inch wide, lavender pink flowers accented with lavender veins.

Iris japonica 'Aphrodite', known as variegated fringed or crested iris, has white petals decorated with blue and yellow markings atop evergreen foliage.

Iris reticulata 'Dance On' has luscious royal blue flowers with darker blue, white, and yellow markings.

Iris reticulata 'Darkness' is a stunner with luscious royal purple flowers with near-black falls with bold white patches speckled with blue and yellow.

Iris reticulata 'Harmony' offers royal blue petals with yellow and white markings.

Iris reticulata 'J.S. Dyt' offers royal purple petals with yellow and white markings.

Iris reticulata 'Louise' has beautiful, fragrant, white flowers with yellow stripes.

'Summer's Day' has lovely mid blue flowers with darker blue stripes and a yellow central stripe on each fall.

Iris reticulata 'Vivacious Beginnings' has rich, bright blue flowers with dark blue lines and white and yellow markings on the falls.

Iris setosa, the bristle-pointed or Arctic iris has attractive violet, purple, or blue flowers with white and yellow markings.

Iris sibirica 'Fancy Me This' has frilly flowers in shades of pink with yellow centres.

Iris sibirica 'Ginger Twist' offers an unusual colour break with flowers in shades of deep yellow, cinnamon, creamy yellow, white, and lavender.

Iris sibirica 'Solar Energy' has sublime flowers in yellows and creams with darker yellow veining.