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Growing Hollyhock

Growing Hollyhock

Old Fashioned Mix


Popular, "old fashioned" hardy biennials or short-lived perennials with a tall, upright habit and attractive single or double flowers in a range of colors. Good for cottage gardens, background plantings, and screens. Often reseeds in the garden, though not aggressively. Hardy in zones 3 to 9. Transplant or sow outdoors after the last frost in spring. Set potted plants slightly deeper than when grown in pots. Can start seed indoors 6 to 8 weeks early. Cover seed with ½ inch of soil.


For full sun in well-drained soil. Drought-tolerant once established. Deadheading promotes longevity. May benefit from staking in the garden, especially in windy areas.

Fertilizer Recommendations

Use low rates of Algoflash Flowering Plant 4-6-7 Liquid Fertilizer (51087), Neptune Fish & Seaweed Fertilizer 2-3-1 (51221), or Osmocote 14-14-14 (51173).

Alternative Products

Other tall perennials used for screening include Delphinium, Foxglove, and Karl Foerster Feather Reed Grass (11971).

Complimentary Products

Hollyhock is a low to moderate feeder that benefits from occasional fertilization. Other "old fashioned" cottage garden plants include Iris and Peonies.

Product Recommendations

Serenade Garden Disease Control (50297) will control powdery mildew. Can use Bamboo Plants Supports 6' (53697) to stake plants.

Hollyhock Facts

Easy-to-grow and generally not troubled with problems. Japanese beetles, rust, and powdery mildew occasionally occur. Flowers are edible as a garnish or in salads. 

Growing Tips