The steps:
1. Chose a flexible brushwood, which fold easily without breaking. For example, Virginia creeper, or Eleannus like in the picture.
2. For the flowers, heather, gypsophila… chose small flowers in a bouquet that can be easily meshed.
3. Roll up the brushwood on itself in several rounds to get a cercle of about 10 centimeters (a bit less than 4 inches), on each round, block the brushwood by passing it inside the previous rounds.