Marshmallow Herb Seeds Althaea Officinalis Medicinal Herb, 30 seeds

Marshmallow (Althaea officinalis) is a hardy perennial herb valued for centuries in herbal traditions and admired for its tall spikes of soft pink blooms. Known for its soothing properties, it is also a beautiful ornamental addition to herb gardens, borders, and pollinator-friendly spaces. Easy to grow and low maintenance, Marshmallow thrives in moist, fertile soils and provides both beauty and practical use.

Seed Information

• Type: Herb Seeds
• Common Name: Marshmallow, Marsh Mallow
• Genus: Althaea
• Life Cycle: Perennial
• Features: Tall pink flowers, soothing herb, pollinator friendly, low maintenance
• Season of Interest: Summer flowering
• Indoor/Outdoor: Both (outdoor beds, herb gardens, and containers)
• Sunlight: Full sun to partial shade
• Cultivating Difficulty: Moderate
• Watering: Moderate to heavy, prefers moist soil
• Climate: Temperate, Humid Continental, Mediterranean
• Growth Habit: Upright clumping, 3–5 ft tall
• Soil Type: Moist, fertile, well-draining soil
• Soil pH: 6.0–7.5
• Planting Time: Spring after last frost or late summer

Growing Instructions

• When to Plant: Sow indoors 6–8 weeks before last frost or directly outdoors in spring
• Soil: Fertile, moist, well-draining soil enriched with compost
• Sunlight: Full sun to partial shade
• Watering: Keep soil evenly moist, especially in dry conditions
• Spacing: 18–24 inches apart
• Germination: 14–21 days at 65–70°F (18–21°C)
• Bloom Season: Mid to late summer
• Tips: Mulch around plants to retain soil moisture; cut back in fall to encourage strong regrowth the next year