Hand-water into treeshelters or install deep pipes or vertical porous hose. The Dry-water additive has not been successful in most cases. Overhead watering can encourage weeds and be detrimental to native species, but may be successful if timed to mimic natural rain events. Conclusion Coastal sage scrub can be improved and restored on almost any site if functional repairs to site hydrology and soil chemistry and structure are made. Many of the plants are vigorous and grow rapidly with water.
Container planting with plant protection and limited supplemental irrigation is most effective.
Direct seeding is limited to sites without weeds, and even there a mix of direct seeding and container plants is likely to provide faster visual and ecological recovery. Hydroseeding can work under some climatic and soil conditions, but is not recommended for general application.