Water hollyhocks regularly, especially during dry periods. Keep the soil consistently moist but not waterlogged. Water at the base of the plant to prevent fungal diseases on the foliage.

Reduce watering once established, but provide supplemental water during prolonged droughts for optimal flowering.

Deadhead spent flower stalks to encourage reblooming and prevent self-seeding. In late autumn or early spring, cut back dead foliage to the ground to improve air circulation and reduce overwintering disease issues.

Remove any diseased or damaged stems promptly.

Hollyhocks are easily grown from seed, sown either indoors in early spring or directly outdoors after the last frost. They can also be propagated by division of established clumps in early spring.

Seeds may not come true to the parent plant, especially for hybrids.

Hollyhocks are typically grown as annuals or biennials, or self-seed readily, making frequent repotting unnecessary.

If grown in containers and they become root-bound, repot them into a slightly larger container in spring using fresh potting mix. Ensure good drainage.