That Outlaw! Homeria.
Diane Whitehead (Tue, 23 Nov 2004 12:20:48 PST)

Are these spreading naturally or with human help? It's hard to
understand how some seeds can spread unless they are "shooters" like
Amaryllis or Broom, air floaters like fireweed, or aquatic floaters
like coconuts and water iris.

People dig up plants, like Crocosmia or bluebells, that have spread
too much in their gardens and throw them onto a nearby area that no
one owns. It may be the last empty lot in a suburban area, or across
the road in a rural one. Sometimes the bulbs are not deliberately
thrown away, but not noticed among the weeds being thrown onto the
waste area.

There are also people who want to beautify the countryside and toss
seeds and bulbs. I heard of a man who was dying and had his daughter
drive him around so he could toss foxglove seeds.

--
Diane Whitehead Victoria, British Columbia, Canada
maritime zone 8
cool mediterranean climate (dry summer, rainy winter - 68 cm annually)
sandy soil