Heuchera 'Peach Flambe' is a sister cultivar to ‘Marmalade’ with larger, smoother leaves with flaming red infusions.

Shades of red and warm burgundy and effervescent creamy yellow flowers.

'Miracle Lemony' is a flower colour breakthrough in the wide world of Hosta with yellow, lightly scented flowers.

Golden hops (Humulus lupulus 'Aureus') is a shade tolerant, herbaceous, twining vine with golden foliage.

Golden hops (Humulus lupulus 'Bianca') is a shade tolerant, herbaceous, twining vine with golden foliage.

'Cascade' is a widely-grown cultivar commonly used in the craft beer industry. It also makes a beautiful tall vine for sun to part shade.

Hylomecon japonica is a rare Japanese forest poppy with single, saucer-shaped, bright yellow flowers.

Hymenocallis (Ismene) 'Sulphur Queen' has spidery, pale yellow, fragrant, daffodil-like flowers with a green throat and stubby, narrow petals.

Hypericum calycinum 'Fiesta' is a stunning variety with variegated leaves and new growth with a pink blush.

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

Impatiens omeiana foliage is dark velvety green with a wide, whitish stripe down the centre. The yellow flowers occur in early fall though this is mainly a foliage plant.

Iris foetidissima 'Citrina' is an evergreen, shade tolerant species with pretty pale yellow flowers and bright orange seeds in autumn.

Iris histrioides 'Katharine's Gold' is a very special fragrant, early spring-blooming iris with glowing pale yellow and white flowers with blue dots.

Iris Louisiana 'Fortune Finder' has fragrant blooms of yellow and ivory with light pink veining. A boggy plant for the sunny garden.

Iris pseudata 'Yarai' is a has tones of peach with royal-purple veining and a bright yellow signal.

Iris reticulata 'Happiness' has bright yellow flowers with green highlights and spotting.

Iris reticulata 'North Star' is a beautiful cultivar with butter yellow and creamy white flowers speckled with teal dots.

Iris reticulata 'Sunshine' has golden yellow and pale yellow flowers with faint spotting.

Iris sibirica 'Colonel Mustard' has large, bi-colour, double blooms of mustard to yellow and violet-purple bars.

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

Iris sibirica 'Paprikash' is a stunning cultivar with cinnamon red, golden yellow, lavender pink, and apricot flowers.

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

Iris sibirica 'White Amber' has flowers in unique shades of yellow with a hint of pink and dark brownish veins.