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  • Hollyhock seeds 30 seeds/bags
  • Hollyhock seeds 30 seeds/bags
  • Hollyhock seeds 30 seeds/bags
  • Hollyhock seeds 30 seeds/bags

Hollyhock seeds 30 seeds/bags

No.A028
High germination hollyhock seeds produce tall spikes of ruffled blooms. Cold-hardy biennial for back borders, cottage gardens and fence landscaping, easy care for beginners.
$0.22
  • Hollyhock seeds 30 seeds/bags
  • Hollyhock seeds 30 seeds/bags

Description




Our premium hollyhock seeds deliver stable germination rate and striking upright tall growth habit. Botanically named Alcea rosea, hollyhock is a classic old-fashioned biennial flower loved for towering flower stalks stacked with large ruffled single or double blooms in assorted bright colors. The coarse heart-shaped green leaves form a dense base clump, creating a dramatic vertical landscape effect.
This variety features outstanding frost resistance and strong adaptability, blooming heavily in the second year from late spring through mid-summer. It is commonly used as the background layer of perennial mixed borders, fence and wall backdrop decoration, cottage garden layout, roadside green belts and large landscape mass planting. Hollyhock tolerates average loose well-drained garden soil and requires minimal feeding. Regular deadheading and occasional watering during dry spells are the only daily tasks, and it can self-sow freely to renew the colony year after year, perfect for low-maintenance landscape projects and novice gardeners.

Planting Instructions

  1. Soil Preparation: Choose loose, well-drained ordinary loamy soil; avoid overly fertile soil which causes excessive leaf growth and weak tall stems.
  2. Sowing Method: Place seeds on flattened soil surface, cover with 0.5cm thin soil layer and lightly compact the substrate.
  3. Germination Condition: Keep topsoil slightly moist, maintain constant temperature 15–22°C, seeds germinate within 7–14 days.
  4. Seedling Care: Thin seedlings to leave adequate spacing to prevent poor air circulation; full sunlight helps strengthen tall stalks against wind lodging.
  5. Daily Maintenance: Water moderately only under prolonged drought; remove finished flower spikes to encourage self-seeding, watch for rust fungus and improve ventilation to control disease.

Specification

  • Plant Name: Hollyhock
  • Botanical Name: Alcea rosea
  • Plant Type: Cold Hardy Biennial Flower
  • Mature Height: 1.5–2.5 Meters
  • Blooming Period: Late Spring to Mid Summer (Second Year Growth)
  • Germination Temperature: 15–22°C
  • Growing Temperature: -20°C to 28°C
  • Light Requirement: Full Sun
  • Soil: Loose, well-drained average garden soil
  • Planting Difficulty: Very Easy
  • Core Features: Tall vertical flower spikes, strong cold hardiness, multi-color double blooms, self-sowing capability, ideal for border backdrops and fence screening

FAQ

Q1: Will hollyhock bloom in the first year after sowing?
A1: Normally it is a biennial plant and blooms vigorously in the second growing season.
Q2: How cold hardy is hollyhock?
A2: It can safely survive winter temperatures down to -20°C in open ground.
Q3: What is the common disease problem for hollyhock?
A3: Rust leaf spot easily occurs in high humidity; increase plant spacing and avoid overhead watering for prevention.
Q4: Can hollyhock regrow by self-seeding?
A4: Yes, dropped ripe seeds will germinate naturally the next spring under suitable conditions.
Q5: Is hollyhock suitable for new gardeners?
A5: Extremely easy to cultivate with high germination rate, robust growth and little daily maintenance needed.

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