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Hibiscus Moscheutos [Hi-BIS-kus Mos-KEW-tos] is a flowering plant species from the family Malvaceae.
These perennial, cold-hardy, native plants are often grown in larger colonies along wetlands and riverine systems in different parts of the United States.
It is mostly native to North America, and South to Florida and Ontario.
Synonyms for this plant are:
- Hibiscus Palustris
- Hibiscus Incanus
- Hibiscus Pinetorum
- Hibiscus Opulifolius
- Hibiscus Oculiroseus
- Hibiscus Moscheutos var. Purpurascens
- Hibiscus Moscheutos ssp. Palustris
- Hibiscus Moscheutos ssp. Moscheutos
- Hibiscus Moscheutos ssp. Incanus
The common names for Hibiscus Moscheutos include:
- Rose Mallows
- Swamp Mallow
- Crimsoneyed Rosemallow
- Swamp Rose Mallow
- Hardy Hibiscus
- Wild Cotton
- Swamp Rose
Hibiscus Moscheutos Plants Care
Size & Growth
This hibiscus plant is a rounded, sturdy, vigorous, woody-based, hairy-stemmed, somewhat shrubby perennial in the Mallow family.
It grows about 3’ – 7’ feet long and 2’ – 4’ feet wide.
Flowering and Fragrance
The Swamp Mallow produces large flowers, which grow 10” – 12” inches wide.
The bloom color varies, but the flowers are mostly pink with dark pinkish centers. The bloom time of this plant is from August to September.
Light & Temperature
While this plant grows well in light shade, the optimal growth is achieved when placed under full sun.
A spot with full sunlight and proper air circulation results in stronger stems, best flowers, and a disease-resistant environment for this plant.
This plant is immune to the humidity and heat of the South.
Provide protection from harsh winds to prevent windburn. The USDA hardiness zones of this plant are 5 – 9.
Watering and Feeding
This plant type requires deep watering when growing actively. Water it thoroughly thrice a week during warm weather.
Deep watering is particularly crucial in the first growing season of this plant. Water immediately if there are signs of wilting.
Feed Moscheutos every 2 weeks with a water-soluble balanced plant fertilizer during the growing season or fertilize in the spring when plants begin to grow using a slow-release fertilizer.
More on –> Choosing a Hibiscus Fertilizer
Soil & Transplanting
The ideal soil mixture for the Hardy Hibiscus is well-draining, organically rich, and moist soil.
While it grows well in typical garden soil, it prefers high soil moisture for best growth while avoiding drenched overly wet soil.
When using heavy, medium, and light soil, make sure the soil is moist.
It doesn’t have any pH level soil requirements and grows well in alkaline, neutral, and acid soils.
Grooming and Maintenance
For bushier plants, pinch the growing tips once they grow 8” inches tall, and pinch back again when they reach the height of 12” inches.
Deadhead the flowers individually for the most pleasing appearance.
During the late autumn season, cut the stems back to around 3” – 4” inches.
The new growth is typically slow during the spring season, but later starts growing rapidly.
The tropical Hibiscus plants start dropping their leaves when moved indoors.
They enter the dormancy stage during the winter season.
How to Propagate Swamp Mallow
The propagation of this plant is done through seeds, cuttings, and division.
When growing with seeds:
- Sow in a greenhouse during early spring.
- The germination process of this plant is rapid.
- Be sure to prick out large seedlings, so they are easier to handle.
- Plant them out in early summer in their permanent spots.
- Opt for stems which are 5” – 6” inches tall and taken from new plants.
- The cuttings must be directly placed in a container or glass filled with water.
- Plant the cuttings in a container with 3 part sand and 1 part peat.
- Roots start forming within four to five weeks.
- Move the plant in the garden or a larger container.
When propagating through division:
- Start by digging a trench around the drip line of the plant using a shovel.
- Maintain an angled cut to dig down and under to properly lift the plant from the hole without damage.
- The plant must be separated in two to five smaller plants with roots spread apart.
- Plant these divisions in their permanent spots, cover with organic soil and moist evenly.
Swamp Mallow Pest or Diseases
This plant doesn’t experience grave disease or pest issues. However, in some cases, they become vulnerable to canker, rusts, blights, and leaf spots.
Japanese beetles might cause severe damage if not treated immediately.
Scale, aphids, mealybugs, and hibiscus whitefly also make occasional visits, so it is best to keep a close watch.
Articles on Hibiscus Pests:
- Pink Hibiscus Mealybugs
- Hibiscus Aphids
- Why Hibiscus Leaves Turn Yellow
If the soil dries out, leaf scorch will occur. Given the right environment, the plants grow healthy and don’t require any staking.
Deer might occasionally damage this plant.
Hibiscus Moscheutos Uses
This plant works well in moist borders, rain garden, in large containers, as specimens, around ponds, streams, and other wet areas, and as summer screen.
They also look beautiful as temporary hedges in the late summer season.
The flowers of this plant attract butterflies, hummingbirds, and other pollinators.