Magnolia 'Butterflies' is a beautiful yellow-flowered hybrid with non-fading, lightly fragrant, buttery flowers.

'Elizabeth' is a hybrid Magnolia with beautiful, large, cup-shaped, fragrant yellow flowers on a deciduous, upright, columnar form.

'Elizabeth' is a hybrid Magnolia with beautiful, large, cup-shaped, fragrant yellow flowers on a deciduous, upright, columnar form.

Magnolia ‘Gold Star’ is a deciduous hybrid magnolia noted for its pale yellow to butter yellow, frost tolerant flowers.

Magnolia Honey Tulip is a compact tree with fragrant, tulip-shaped yellow flowers that bloom before the leaves.

Magnolia 'Judy Zuk' has unique, bicolour, golden yellow and pink, tulip-shaped flowers that smell like Fruit Loops.

Magnolia 'Sunsation' blooms abundantly with large blossoms of rich glowing yellow petals flared with deep pink.

Magnolia 'Yellow Bird' is one of the best yellow-flowered hybrids.

Mahonia aquifolium, the Oregon grape, is a native evergreen shrub with thick, dark green, holly-like leaves and yellow flowers.

Mahonia nervosa has emerald green, windmill-like leaves and canary yellow spring flowers and waxy blue berries.

Mahonia repens is a very adaptable, native, woodland ground cover with bright, canary-yellow blooms.

Mahonia x media 'Arthur Menzies' is an excellent, evergreen shrub with green, holly-like leaves, textured bark, and yellow, fragrant flowers.

An excellent, evergreen shrub with green, holly-like leaves, textured bark, and spikes of glowing yellow, fragrant flowers.

An excellent, evergreen shrub with green, holly-like leaves, textured bark, and spikes of glowing yellow, fragrant flowers.

Mangave 'Catch A Wave' has bold, blue, rippled foliage with silvery leaf reverses held upwards at 45 degree angles with deep maroon spotting.

Mangave ''Silver Fox' is a dramatic specimen with Agave-like form and serrated edges as if cut by pinking shears.

Mangave 'Tooth Fairy' has grey-blue succulent foliage with faint darker spotting and dramatic spines in shades of cinnamon brown, yellow, and orange.

Manihot 'Variegata' or Cassava is a stunning tropical foliage plant with gold variegated foliage and edible roots!

Massonia citrina is a newly described species with large, smooth, light green leaves and clusters of lemon yellow flowers.

Massonia depressa has large, smooth, light green leaves and clusters of greenish yellow to light yellow flowers.

Massonia echinata has smallish grey-green leaves with numerous raised pustules and yellowish green flowers.

Massonia mimetica has cinnamon coloured, pustulated leaves and pale yellow flowers with orange to blue anthers.

Meconopsis paniculata blooms on stems 4-5 feet tall covered in about 50 cupped, silky-textured, lemon yellow flowers.

Medeola virginiana is an oddball eastern North American native that will be loved by anyone who appreciates Paris and Trillium.