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Human Worlds

Some plants can survive anywhere, even the heart of the city. These "weeds", like the Ivy-Leaved Toadflax, can grow on walls and other shear surfaces without any soil. The plant grows and blooms towards the light to attract pollinators, but once the seedpods develop it will turn inwards seeking a dark crevice to grow in. Such cracks are all it needs to produce a new plant.
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Clip Season 1 Episode 5 Length 02:32 Premiere: 08/03/22

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Clips & Previews

Season 1 Episodes

Human Worlds
S1 E5 Length 55:55 Premiere Date 08/03/22

Desert Worlds
S1 E4 Length 55:55 Premiere Date 07/27/22

Seasonal Worlds
S1 E3 Length 55:55 Premiere Date 07/20/22

Water Worlds
S1 E2 Length 55:55 Premiere Date 07/13/22

Tropical Worlds
S1 E1 Length 55:54 Premiere Date 07/06/22

How Do You Pollinate 40 Million Almond Trees?
Clip Length 02:33 Premiere Date 08/03/22

One Sharpshooter Way to Stop an Invasive Plant
Clip Length 02:20 Premiere Date 08/03/22

How "Weeds" Grow in the Sidewalk
Clip Length 02:32 Premiere Date 08/03/22

Seeds that Literally Run Away
Clip Length 02:27 Premiere Date 08/03/22

The Green Planet - Teaser
Preview Length 00:30 Premiere Date 07/06/22

Official Preview
Preview Length 00:30 Premiere Date 07/06/22

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Tropical Worlds - S1 E1

Sir David Attenborough takes a plant's-eye view of life in a rainforest, a world of stunning beauty but also fierce competition.

  • Sunday October 18, 2026 10:00 pm ET on KET2
  • Sunday October 18, 2026 9:00 pm CT on KET2
  • Tuesday October 20, 2026 4:00 am ET on KET2
  • Tuesday October 20, 2026 3:00 am CT on KET2
  • Sunday October 25, 2026 3:30 am ET on KET2
  • Sunday October 25, 2026 2:30 am CT on KET2

Water Worlds - S1 E2

Sir David Attenborough discovers bizarre and beautiful water plants, which use nature's super-glue, counting, and killer spikes to get a leaf up. Some escape from animals by rolling away while others create bubbles in a magical river in Brazil.

  • Sunday October 25, 2026 10:00 pm ET on KET2
  • Sunday October 25, 2026 9:00 pm CT on KET2
  • Tuesday October 27, 2026 4:00 am ET on KET2
  • Tuesday October 27, 2026 3:00 am CT on KET2
  • Sunday November 1, 2026 3:30 am ET on KET2
  • Sunday November 1, 2026 2:30 am CT on KET2

Seasonal Worlds - S1 E3

Sir David Attenborough reveals the surprising and dramatic effects of the four seasons on plant life. To survive the challenges each season presents, plants must use strategy, deception and remarkable feats of engineering.

  • Sunday November 1, 2026 10:00 pm ET on KET2
  • Sunday November 1, 2026 9:00 pm CT on KET2
  • Tuesday November 3, 2026 4:00 am ET on KET2
  • Tuesday November 3, 2026 3:00 am CT on KET2

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