Swamp Rose Mallow (Hibiscus moscheutos)

Swamp rose mallow (Hibiscus moscheutos) is a large, herbaceous perennial producing showy, dinner-plate-sized flowers in summer.

Above information is sourced from Wikipedia

Sunlight

Full Sun

Watering

Consistent Moisture

Soil

Clay, Loam, Sandy; Acidic, Neutral, Alkaline; Wet

Temperature

Warm

Habitat

Aquatic

Fertilizer

Moderate Feeding

Care Requirements

Light

Full Sun

Prefers at least 6-8 hours of direct sunlight daily for optimal flowering.

Watering

Consistent Moisture

Keep soil evenly moist, but not waterlogged.

Soil

Clay, Loam, Sandy; Acidic, Neutral, Alkaline; Wet

Temperature

Warm

Thrives in temperatures between 20-30°C; protect from frost.

Habitat

Aquatic

Fertilizer

Moderate Feeding

Fertilize once in spring with a balanced, slow-release formula.

Plant Overview

Plant Type

Shrub

Plant Category

Ornamental

Plant Place Type

Garden, Pot

Plant Environment

Aquatic

Lifespan

Perennial

Plant Height

1-2.5 m

Spread

0.6-1.5 m

Growth Rate

Moderate

Dormancy

Yes

Leaf Color

Green

Leaf Type

Simple

Flower Size

large

Optimal Sunlight Lux

60000

Image Gallery

Flowering & Fruiting Cycles

Monthly activity intensity for bloom and fruit across both hemispheres.

Northern hemisphere

Flowering & fruiting calendar

Peak bloom · AugPeak fruit · Sep

FloweringFruiting

Southern hemisphere

Flowering & fruiting calendar

Peak bloom · JanPeak fruit · Jan

FloweringFruiting

Taxonomy

kingdomPlantae
divisionTracheophyta
classMagnoliopsida
orderMalvales
familyMalvaceae
genusHibiscus
speciesHibiscus moscheutos

Toxicity

Toxic for humans

Rating: 0/5

Toxic for pets

Rating: 0/5

Edible

Non-toxic

Additional Care Tips

Swamp rose mallow thrives in consistently moist soil. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, especially in containers, as this can lead to root rot. Regular watering is crucial, particularly during hot, dry periods to maintain vigor and bloom production.

Prune back dead or damaged stems in late winter or early spring before new growth emerges. You can also cut back plants by about one-third in mid-summer to encourage a bushier habit and potentially a second flush of blooms, though this might reduce the size of the initial flowers.

Propagate swamp rose mallow from seed sown in early spring indoors or directly outdoors after the last frost. Stem cuttings can also be taken in late spring or early summer and rooted in moist potting mix. Layering is another viable method for increasing your plant stock.

Repot container-grown swamp rose mallow every 2-3 years in spring, or when the plant becomes root-bound. Choose a pot that is slightly larger than the current one. Use a well-draining potting mix enriched with compost to provide adequate nutrients and aeration for healthy root development.

FAQs

What are the ideal growing conditions for swamp rose mallow?

Swamp rose mallow prefers full sun to partial shade and consistently moist, well-drained soil. It tolerates heavy clay soils and is suitable for bog gardens.

How tall does Hibiscus moscheutos typically grow?

Mature plants can reach heights of 1 to 2 meters, with a spread of about 1 to 1.5 meters.

When does swamp rose mallow bloom?

The large, showy flowers typically bloom from mid-summer through early fall, usually from July to September.

Is swamp rose mallow a perennial or annual?

Hibiscus moscheutos is a herbaceous perennial, meaning it dies back to the ground in winter and regrows from its roots each spring.

How should I care for swamp rose mallow in winter?

In late fall or early spring, cut back the dead stems to the ground. Mulching around the base can help protect the roots in colder climates.

Care Requirements

Light

Full Sun

Prefers at least 6-8 hours of direct sunlight daily for optimal flowering.

Watering

Consistent Moisture

Keep soil evenly moist, but not waterlogged.

Soil

Clay, Loam, Sandy; Acidic, Neutral, Alkaline; Wet

Temperature

Warm

Thrives in temperatures between 20-30°C; protect from frost.

Habitat

Aquatic

Fertilizer

Moderate Feeding

Fertilize once in spring with a balanced, slow-release formula.

Additional Care Tips

FAQs

What are the ideal growing conditions for swamp rose mallow?

Swamp rose mallow prefers full sun to partial shade and consistently moist, well-drained soil. It tolerates heavy clay soils and is suitable for bog gardens.

How tall does Hibiscus moscheutos typically grow?

Mature plants can reach heights of 1 to 2 meters, with a spread of about 1 to 1.5 meters.

When does swamp rose mallow bloom?

The large, showy flowers typically bloom from mid-summer through early fall, usually from July to September.

Is swamp rose mallow a perennial or annual?

Hibiscus moscheutos is a herbaceous perennial, meaning it dies back to the ground in winter and regrows from its roots each spring.

How should I care for swamp rose mallow in winter?

In late fall or early spring, cut back the dead stems to the ground. Mulching around the base can help protect the roots in colder climates.

Swamp Rose Mallow (Hibiscus moscheutos)

Care Requirements

Plant Overview

Image Gallery

Flowering & Fruiting Cycles

Additional Care Tips

Water

Pruning

Propagation

Repotting

FAQs

What are the ideal growing conditions for swamp rose mallow?

How tall does Hibiscus moscheutos typically grow?

When does swamp rose mallow bloom?

Is swamp rose mallow a perennial or annual?

How should I care for swamp rose mallow in winter?

Loading plant details

Swamp Rose Mallow (Hibiscus moscheutos)

Care Requirements

Plant Overview

Image Gallery

Flowering & Fruiting Cycles

Additional Care Tips

Water

Pruning

Propagation

Repotting

FAQs

What are the ideal growing conditions for swamp rose mallow?

How tall does Hibiscus moscheutos typically grow?

When does swamp rose mallow bloom?

Is swamp rose mallow a perennial or annual?

How should I care for swamp rose mallow in winter?