Remember the root system is quite delicate. Several California companies do grow this native, so do not hesitate to ask your local retailer to order it. Enterprising individuals may wish to drop in on southern California botanical gardens during plant sales to pick up an inexpensive specimen. Do not be surprised to find the plants to appear scrawny and unattractive in the bucket. This is very typical of plants rebellious of container culture.
Plants are slow to establish but improve in appearance, so be patient.
Once established, the Matilija poppy should require very little maintenance other than the annual pruning. Deep, infrequent soaks should be provided during the summer months to enhance the appearance. Withholding water will help check growth on aggressive specimens. No fertilizer should be required. Pests and diseases are not typically a problem.