Plant a lot of them. If you have weedy areas, don't panic. Use mulch to make interesting patterns between them, so it will look like you planted them there on purpose. On the day of the wedding, buy lots of baby's breath which is available at any florist. Use big puffy bunches of them to fill in empty spots in the flower borders.
Roses often come in big black plastic pots already blooming.
Use your inventiveness and imagination about this. I enjoy your homepage and wish you were near California for your seminars or classes. Any thing to reduce the pollution would be great. Thanks, Diane Dear Diane, Yes, there are great houseplants that will do the job. All of these plants will grow happily in bright to low light.