The flowers areloved by pollinators.

Brown seed pods begin to form in late September, releasing tiny black seeds when mature.

Depending on your climate, marsh mallow is planted from seed in the fall or spring.

Marshmallow plant with small white flowers and spiky leaves on stems

The Spruce / Autumn Wood

Be careful not to plant them in a location where taller plants will cast shade on them.

Soil

True to its name, the marsh mallow plant likes marshy, wet areas.

An area with consistently damp soil with a slightly acidic pH around 6.0 is ideal.

Marshmallow plant with small white flowers and spiky leaves on tall stems

The Spruce / Autumn Wood

Water

Consistent moisture with good drainage is essential for marsh mallow plants.

If your soil is sandy, add moisture-retainingsoil amendmentssuch as organic matter.

Standing water, on the other hand, is too wet for the plants.

Marshmallow plant with small white flowers on stems with spiky leaves closeup

The Spruce / Autumn Wood

They have no particular humidity preferences or dislikes.

This also makes the plant less inviting to pests.

The larveae first feed on the roots, then on the leaves, leaving pinprick-sized holes.

Marshmallow flower with small white petals and purple stamen closeup

The Spruce / Autumn Wood

If the problem arises, applyneem oil.

If you see this condition, remove any affected leaves and avoid overhead watering.

In severe cases, apply a copper-based fungicide designed to treat rust.

How Long Does Marsh Mallow Bloom?

Individual blooms are short-lived but the plant produces flowers all summer long until fall.

What Do Marsh Mallow Flowers Look and Smell Like?

The bloom is visually striking but the flowers are not fragrant.

The tall, elegant spikes are covered with almost white to blush or light pink flowers.

Move it to a location where it receives full sun, six to eight hours per day.

You could also prune surrounding plants that cast shade on it to let in more sunlight.

In modern marshmallow production, the mallow root sap has been replaced by gelatin.

Wait until the roots are large and mature, about two years old.

Using a garden fork, dig them in the late fall or spring when the plant is dormant.

Remove the roots you’ll need and replant the crown because the plant may continue to grow.

Marsh mallow plants reseed themselves, yet are not considered invasive.