Ireland, County Sligo, Carney, Close up detail of the interior of a red cabbage.

Namibia, Namib Desert, Welwitschia Mirabilis plant that can grow to 100 years old.

Namibia, Namib Desert, Welwitschia Mirabilis plant that can grow to 100 years old.

Guatemala, Rainforest trees grow on an unrestored ruin in Group H in the the ruins of the Mayan city of Tikal in Tikal National Park, a UNESCO World Heritage Site.

Myanmar, Mandalay, Ornamental cabbages, National Kandawgyi Gardens, Pyin Oo Lwin, Maymyo.

Poland, Warsaw, Marszalkowska, Wire frame on building facade to allow plants to grow vertically.

Poland, Warsaw, Marszalkowska, Wire frame on building facade to allow plants to grow vertically.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.

Oilseed Rape, Brassica napus oleifera, intensively grown on farm.