Iris sibirica 'Sunfisher' is a Siberian iris with lightly ruffled lemon-yellow standards and deeper yellow falls.

Iris sibirica 'Tipped in Blue' is a showstopper with its soft violet-blue and yellow flowers.

Iris x hollandica 'Symphony' has pure white standards and lemon yellow falls with a dark yellow spot.

Iris 'Golden Zebra' is an intricate and exotic hybrid with golden yellow standards and zebra-striped, purple-black and white falls.

Iris 'Maglissa' offers butterscotch yellow standards above falls in shades of burgundy, tan, and purple with blue beards.

Iris 'Martian' has glowing yellow standards, creamy peach style arms and falls heavily veined with warm purple.

Iris ‘Apache Warrior is a two-toned intermediate bearded Iris with yellow standards, yellow-brown falls, and a brown beard.

Iris ‘Edith Wolford' is a mid-season bearded iris with yellow standards, violet-blue falls, and yellow beards.

'Final Episode' is a variegata style iris with lemon and gold standards flecked with white and purple falls overlain with burgundy.

Iris 'Frimousse' has lovely peach standards and lavender to raspberry red falls which can vary in colour.

Iris 'Golden Muffin' has yellow standards and cinnamon falls with darker burgundy-brown markings around yellow stripes.

Iris 'Idle Rich' has bold dusky yellow standards flushed with violet above brilliant yellow falls with deep orange beards.

Iris 'Megabucks' offers ruffled golden yellow standards and bright fuchsia falls with a quarter inch wide butterscotch margin.

Iris 'Nice Job' is a heavily ruffled lemon to golden yellow cultivar with warm purple flushes on the standards and falls.

Iris ‘Sneak a Peak' has golden yellow standards and falls in purple-blue, reddish purple, burgundy, and yellow.

'Sunset Sky' is a gorgeous bearded iris that looks like the best sunset you've ever seen.

Ixia 'Yellow Emperor' is an exotic South African iris relative called wand flower with bright yellow flowers and dark eyes.

Winter jasmine, Jasminum nudiflorum, is a trailing, vine-like shrub with masses of bright yellow flowers in late winter.

Kalanchoe luciae 'Variegata' is a spectacular form of the flapjack or paddle plant with grey-green, white and red leaves.

Kalanchoe orgyalis is a branching succulent shrub that has cool, felted, copper, spoon-like leaves with white reverses.

Kalanchoe rhombopilosa has stunning silver-white leaves with brown speckling.

Kirengeshoma koreana is a tall herbaceous plant with serrated maple-like leaves and creamy yellow bell flowers.

Kirengeshoma palmata or Korean waxbells is a stately shade perennial with maple-like leaves and yellow bell flowers.