Plants have developed tricks and tools to spread their seed. Knowledge of this can help to collect the seeds (in time).
Sometimes they make umbrellas or propellers which allow the seed to be carried away further by the wind.
Whether they use barbs or sticky stems with which seeds stick to dogs, cows, human legs.
Some plants drape a delicious berry around their seed which animals (especially birds) eat and fertilize before ejection much further. Or nuts that are stored elsewhere as winter stock.
spreadingseedsIn jewelweed (Impatiens) the seed pods jump when touched open so the seeds are blown off. At violets the seeds are so thrown by drought.
Some seeds remain easily float through air cavities or a waterproof shield, and sprout along banks or when flooding further inland.

The life cycles of some seeds and plants is very complex and specific. The orchid is a genus of the orchid family. They have a lot of seeds, as small as dust, often only 1/4 mm and a millionth of a gram heavy. They contain so little nutrients that the help of a mold is required for the piercing of the seed coat, the germination and the creation and delivery of food. This kind of mutualistic symbiosis to exchange nutrients between plants and soil fungi is called mycorrhizae. The fungus penetrates through the root hairs inside the orchids root and it bleeds sugars. Conversely, an orchid with the help of soil fungi can much more efficient take kinds of minerals from the soil.
The plant needs to mature often many years to grow out to an adult fruiting specimen.

The stork's bill seed of (Erodium cicutarium also known as redstem filaree, or pinweed) used an ingenious way to shoot his seeds away, and then even to drill them into the soil. The spiral shape of the awn may under the influence of varying humidity wind (or unwind) to bury the seed.
Note also in the movie that the barely visible life on soil meanwhile creates hundreds of changes.