Marsh Mallow Seeds

Althaea Officinalis
Regular price $6.99
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About

Marsh Mallow (Althaea Officinalis) is a hardy perennial herb that grows in Western Europe and Central Asia's salt marshes, riverbanks, and coastal wetlands. Marsh Mallow grows upright to 36 inches tall with soft velvety leaves and pale pink flowers that bloom in late summer, usually July to September. Marsh Mallow is hardy in USDA Zones 3 to 7, herb goes dormant every winter and comes back in spring from its taproot. Long before marshmallow candy existed, the roots of Althaea Officinalis were boiled into a medicinal syrup used across Europe and the Middle East to soothe inflamed throats and digestive complaints.

Quick Facts

Life Cycle
Life Cycle Perennial
USDA Zones
USDA Zones 03–07
Light Requirements
Light Requirements Full sun
Germination Time
Germination Time 7–14 days
Stratification
Stratification Required
Spacing
Spacing 18-24 inches
Sowing Method
Sowing Method Direct Sow
Soil
Soil Moist
Flowering Period
Flowering Period Summer
Water Requirements
Water Requirements High
Maturity Time
Maturity Time 90-120 days
Growing Habit
Growing Habit Upright

How to Grow & Harvest

Sowing & Timing

The seed coat of the Marsh Mallow plant is hard, so cold stratification is required to ensure good germination. For a spring sowing, mix the Althaea Officinalis seeds with damp sand and refrigerate for 4-6 weeks before planting, which simulates the cold-wet dormant period the seeds would experience outdoors in the winter. You can also make the things simpler and direct sow Marsh Mallow seeds outdoors in late summer or fall and let nature do the stratification process. In both ways, the sow Marsh Mallow flower seeds just below the surface – no deeper than 1/8 inch. Keep the soil moist and at a temperature of 70°F. Althaea Officinalis seeds germinate slowly and irregular, taking 2-4 weeks or longer.

Soil, Watering & Fertilization

Full sun is not negotiable if we want the bloom and root development to thrive — if plant gets less than 6 hours of sun, it will get leggy without flowering much. The soil should be moist to slightly wet. This is not a drought-tolerant plant, so don't try to grow it in fast-draining sandy beds. Marshy areas, pond edges, low spots in the garden that don't dry out — this is where the Marsh Mallow plant thrives. Regular garden soil is okay if we water it consistently. It also performs well in heavy clay soil, unlike most herbs.

Growth & Harvest

Once established, Marsh Mallow herb is a genuinely low-maintenance plant. Stake plant to prevent bending in wind. Deadheading isn't required, but trimming spent flowers extends the blooming season. Fertilize lightly in spring with a balanced organic fertilizer. But not too much, as overfeeding pushes leafy growth at the expense of root development. Roots can be harvested in autumn of the second or third year. For that pull the entire root from one side, cut off what is needed, and then replant the rest of the plant to preserve the crown of the plant. Leaves can be picked throughout the season for tea or poultices.

FAQ

Are the Althaea Officinalis seeds for sale non-GMO?

Yes. At KVITER you can buy Marsh Mallow seed packets, which are open-pollinated, untreated, and non-GMO — no coatings, no fungicide treatments. It´s the same heirloom variety that grown in European apothecary gardens for centuries. You can buy Marsh Mallow seeds online directly at KVITER. All orders over $49 ship free — if you're stocking a medicinal herb garden, combining a few seed varieties in one order will save you money on delivery.

What parts of the Marsh Mallow plant can be used?

All of them, more or less. The root is the most powerful medicinally and the most commonly used in recipes. The leaves are suitable for tea or a topical poultice, as they are mucilaginous like the root, just less so. Young leaves and shoots are edible as a vegetable. Flowers are edible too, mostly as a garnish.

Don´t forget to consult with doctor, pharmacist, or qualified herbalist before using Marsh Mallow herb therapeutically.

Can Marsh Mallow handle drought?

No — this is not a drought-tolerant plant. Dry spells cause wilting, poor flowering, and weak root development. Keep the soil consistently moist and water Marsh Mallow plant regularly; brief waterlogging is fine.