you need Soil or Cotton with water
you need water
and sunlight
Sunlight signals for germination of cress seeds
Just put the cress seeds in water and it'll work in days
Certain seeds (like cress or grass) need little to grow, but they do need water. That is why your seeds wont grow on dry cotton wool.
Watercress can mature in 5 days.
Land Cress seeds grow well as an edge crop which requires regular water supply. It is best grown in a partially shaded area and the most appropriate soil for its cultivation is a well-draining soil, though it tolerates almost all other types of soil. A pH. of 6. 0- 6. 8 is best for the Cress seeds. Special care must be taken to keep a good gap between subsequent seeds while sowing. Cress leaves are ready for harvest at 7 weeks after sowing.
The effects are that the more competitive, 'stronger' seedlings will out grow the 'weaker' seedlings.
Watercress can mature in 5 days.
Garden cress seeds
That is imposible you need seeds to grow plants even though oranges are fruit but you need seeds for them to grow
It takes a week and you should be able to see a visible change in the seeds after a day or 2(the seeds should have started to split) and after a week you could probably eat your cress.
in pots oviously
Yes.