Hollyhock 'Black'

Alcea rosea

How to grow Hollyhock 'Black'

  • Full Sun

  • Medium

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Black is thought of as very hardy, so this plant will tend to survive through freezing conditions.

Growing Black from seed

Sow 0.1 inches (0.25 cm) deep with a guideline distance of 0.2 inches (0.5 cm).

By our calculations, you should look at sowing Black about 56 days before your last frost date.

Transplanting Black

As Black is very hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

Harvesting Black