What basic guidelines about soil and growing conditions can I use to help me evaluate whether my house plants are suitable for entry into California?
To be eligible for entry into California, house plants should have been grown in an indoor setting only, such as in a home or enclosed greenhouse, and planted in sterile, packaged, commercial potting mix. They should not have been grown or maintained outdoors, even during the warmer times of the year, or planted in soil taken from outdoor or backyard sources.
