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 tall stately herbaceous plant with wonderful serrated maple-like leaves and yellow bell flowers.

Kniphofia 'Banana Popsicle' forms numerous spikes of golden yellow flowers for months on end.

Kniphofia 'Gold Rush' is a red hot poker with bright yellow, tubular flowers on tall spikes with attractive, blue-green grass-like foliage.

Pineapple yellow spikes all summer long.