Double Hollyhock Seeds

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Hollyhock is a hardy biennial flowering plant that produces fully-double scarlet, pink, white, purple, brown and yellow flowers on sturdy spikes.

It grows up to 5-6 feet tall and blooms from May to October, attracting hummingbirds and butterflies.

It's great for cottage, wildflower, and flower gardens.

The seeds can be planted in August or September and established plants grow in full sun and well-drained soil, tolerating a wide range of soil conditions and some light shade.

Hollyhocks are short-lived but easily self-seed and can persist for years.

• Season: Biennial
  Height: 60-72 Inches
  Bloom Season: Summer
  Environment: Sun/Partial Shade
  Soil Type: Rich/Average/Moist well-drained, pH 6.1-7.8
  USDA Zones: 3-10
• Sow Indoors: Spring (6-8 weeks before last frost)
  Sow Outdoors: Spring/Fall
  Seed Depth: 1/8 Inch
  Germination Time: 21-28 Days

FAQ

01

When to Plant Hollyhock Seeds

Direct Sow approximately one week before the threat of frost has passed. Hollyhocks can also be sown indoors approximately 9 weeks before your final frost and transferred outdoors about 2-3 weeks after the final frost has passed.

02

Where to Plant Hollyhock Seeds?

Plant hollyhocks, in moist, rich, and well-draining soil that gets full sun exposure - though they can tolerate Partial Shade. One of the significant causes of hollyhock failure is planting in soil that is too dry.

03

How to Plant Hollyhock Seeds?

Hollyhock seeds require light to germinate, so be careful not to cover them when planting. 

Hollyhocks may benefit from a 12 hour soak in warm water, but it is not needed. Direct sow outdoors onto the surface of the soil and compress firmly, but do not cover. Hollyhocks require sunlight to germinate. If starting indoors, use tall, individual pots to transplant, as Hollyhocks have long taproots.

04

How to Care for Hollyhock?

Hollyhocks are a short-lived perennial, tending to last about 2-3 years. This lifespan can be extended by removing flowers as soon as they fade. In non-tropical climates, you can cut your hollyhocks down and mulch in order to give them longer life as well. Hollyhocks can also be susceptible to rust, which will usually infect lower-growing leaves, but can spread upwards. Prevent rust by watering from below, and promoting good air circulation between your hollyhocks.