100+ Marshmallow flower, Althaea officinalis, Marsh Mallow Plant seeds

Common Name Marshmallow, marsh mallow Scientific Name Althaea officinalis Family Malvaceae Plant Type Perennial, herb Mature Size 4-5 ft. tall, 2 ft. wide Sun Exposure Full Soil Type Moist Soil pH Acidic, neutral, alkaline Bloom Time Summer Flower Color White, pink Hardiness Zones 3-7 (USDA) Native Areas Europe, Asia, Africa You can either plant marshmallow seeds directly in the ground in the late fall if your area has mild winters, or in the early spring if your winters tend to be frosty. In either case, you’ll want to plant the seeds about 12 inches apart and mulch heavily to keep weeds at bay. Keep the area free of weeds until the plants are tall and established and then they’ll mostly be able to fend for themselves.