Plant flat-collapsible-container

A plant flat-collapsible-container comprising:

• a first panel made of thin, heat-sealable film;
• a second panel made of thin, heat-sealable film, said second panel adjacent to said first panel;
• a first longitudinally-extending seam and a second longitudinally-extending seam, said first and second panels joined together along said first and second longitudinally-extending seams, said first and second longitudinally-extending seams forming longitudinally-extending sides of the container;
• a first panel transversely-extending long edge forming an edge of said first panel;
• said first panel transversely-extending long edge freely separable from said second panel to form a large opening into an interior of the container;
• a short transversely-extending side defined by said container, said short transversely-extending side opposite said first panel transversely-extending long edge, wherein
• said first longitudinally-extending seam forms a first angle between 55.degree. and 65.degree. with a transverse axis of the container;
• and
• said second longitudinally-extending seam forms a second angle with the transverse axis of the container, said second angle being between 85.degree. and 90.degree., and wherein
• said first and second angles are interior angles on the same side of the transverse axis.