Siberian bugloss 'Jack Frost', Brunnera macrophylla, massed heart-shaped silver leaves edged and veined with green. Plants, Pernnial, Leaf.

Siberian lily, Lilium pensylvanicum, Side view of orange coloured flower growing outdoor.

Crab apple, Siberian crab apple, Malus mandshurica, Small white flower blossoms growing outdoor on the tree.

Crab apple, Siberian crab apple, Malus mandshurica, Small white flower blossoms growing outdoor on the tree.

Iris, Siberian Flag, Iris sibirica, Single purple coloured flower growing outdoor in field of grass.

Iris, Siberian Flag, Iris sibirica, Studio shot of open pale blue flower head on an upright stem.

Iris, Siberian Flag, Iris sibirica, Studio shot of open pale blue flower head on an upright stem.

Iris, Siberian Flag, Iris sibirica, Mauve coloured flower growing outdoor.

Iris, Siberian Flag, Iris sibirica, Mauve coloured flower growing outdoor.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against black background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against mauve background.

Siberian iris, Iris sibirica 'Sparkling rose', purple flower against green background.