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Marshmallow

Althaea officinalis

Marshmallow is a beautiful heirloom herb that has been cultivated for centuries for its edible leaves, roots, and traditional herbal uses. With soft pink flowers that attract bees, butterflies, and other beneficial insects, this perennial herb is a must-have for pollinator-friendly gardens.

300 Seeds
White
$4.29

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Plant Data
Growing Instructions
Plant Data
Zones:  3, 4, 5, 6, 7, 8, 9
Growth Cycle:  Perennial
Light:  Full Sun, Partial Shade
Water Needs:  Moderate, Moderate to High
Color: 
Soil:  Loam, Well Drained, Tolerant of most soils
Growth Rate:  Moderate
Maturity - (Vegetables Only): 
Edible:  Yes.
Height:  Up to 3 Feet, Up to 4 Feet
Evergreen:  No
Special Features:  Attracts Pollinators and Hummingbirds, Flowering, Medicinal,Deer Resistant,Self Seeding, Windbreak or Privacy Screen
Warnings:  Uknown - Let us Know
Growing Instructions
How to Germinate Marshmallow Althaea officinalis

How to Germinate Marshmallow (Althaea officinalis)

  • Sow seeds indoors 4–6 weeks before the last expected frost date, or directly outdoors after danger of frost has passed.
  • Scarify seeds gently or soak in warm water for 12–24 hours to improve germination.
  • Plant seeds ¼ inch (6 mm) deep in moist, well-draining soil.
  • Space plants about 18–24 inches (45–60 cm) apart to allow room for growth.
  • Maintain a soil temperature of 60–70°F (16–21°C) for best results.
  • Germination typically occurs in 10–21 days.
  • Keep the soil consistently moist, but not waterlogged, during the germination period.

Additional Tips

  • Marshmallow prefers full sun to partial shade and thrives in moist, rich, loamy soil.
  • Water regularly, especially during dry periods—this plant enjoys damp conditions.
  • Mulch around the base to help retain soil moisture and suppress weeds.
  • Marshmallow is a perennial and can return each year with proper care.
  • The roots, leaves, and flowers have traditional medicinal uses and can be harvested in the second year.
Marshmallow

Marshmallow

$4.29