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Guide botanique

Rose Mallow.

Hibiscus moscheutos

Prononciation hi-BIS-kus mos-KYOO-tohs

Aussi appelée Common Rose-mallow, Crimsoneyed Rosemallow, Mallow-rose, Sea-hollyhock, Swamp Rose-mallow, Swamp Rosemallow, Water-mallow, Crimson-eyed Rose-mallow

Rose Mallow is a striking perennial hibiscus known for its large, showy flowers that bloom throughout the summer. It's a fantastic choice for adding a tropical flair to your garden beds and borders. Native to North America, it thrives in moist environments and can grow quite large.

En un coup d'œil

Care level
Easy
Plant type
Perennial flowering shrub
Light
Full sun
Indoor light
direct
Water
Every 3 to 7 days
Mature size
4-7 ft tall and 2-5 ft wide
Growth rate
fast
Hardiness
USDA 5 to 9
Bloom time
Mid summer to fall

Entretien

Ensure this plant gets plenty of sun and consistent moisture; it dislikes drying out. Deadhead spent blooms to encourage more flowering and prune back dead stems in late winter or early spring. Watch for aphids and Japanese beetles, but it's generally quite resilient.

Watering
Keep soil consistently moist, especially during hot weather; do not let it dry out completely.
Feeding
Feed with a balanced fertilizer monthly during the growing season, starting in spring.
Pruning
Cut back dead stems to about 6 inches from the ground in late winter or early spring before new growth begins.
Repotting
Repot container-grown plants every 1-2 years in spring or when root-bound.
Soil
Moist, well-drained loamy soil
Soil pH
Slightly acidic to neutral (6.0-7.0)
Temperature
-23.3 to 32.2°C
Humidity
40 to 60%

Sécurité

People
This plant is generally not considered toxic to humans.
Pets
This plant is not considered toxic to cats and dogs.
Children
This plant has no specific safety concerns for children beyond normal caution with plants.
Contact allergens
No significant contact allergens are typically associated with this plant.
Airborne allergens
Pollen may cause mild respiratory irritation in sensitive individuals.
Edibility
While some parts of hibiscus can be consumed, it's best to stick to ornamental uses unless you are an expert in wild edibles.

Comment l'identifier

  • Huge, dinner-plate sized flowers
  • Heart-shaped, lobed leaves
  • Upright, bushy habit
  • Sturdy, woody stems
  • Distinctive central stamen column
  • Often dark green or purplish leaves
Height
1.22 to 2.13m
Spread
0.61 to 1.52m
Leaves
Green, Dark green, Purple, deciduous
Flowers
Pink, Red, White, Fuchsia, 15 to 30cm

Problèmes courants

  • Japanese beetles These beetles can skeletonize the leaves of hibiscus, often appearing in large numbers.
  • Aphids Small, pear-shaped insects that feed on plant sap, causing distorted growth and yellowing leaves.
  • Spider mites Tiny pests that thrive in hot, dry conditions and cause stippling on leaves, often with fine webbing.
  • Cankers Fungal infections that cause sunken, discolored areas on stems, which can girdle and kill branches.
  • Leaf spot Various fungal or bacterial infections that cause spots on the foliage, leading to premature leaf drop.
  • Poor blooming Can be caused by insufficient sunlight, over-fertilization, or improper pruning.

La cultiver

Propagation
Seed, Cuttings, Division
When to plant
Spring, Fall

Plant it where it has space to grow and access to consistent moisture for the best flowering display.

Bonnes associations

  • Joe Pye Weed These tall perennials enjoy similar moist conditions and bloom at a similar time, creating a beautiful layered effect.
  • Switchgrass This native grass provides structural contrast and thrives in moist to wet soils, complementing the hibiscus.
  • Blue Flag Iris Its strappy foliage and blue flowers are a lovely contrast to the hibiscus, and it prefers similar wet environments.
  • Cardinal Flower This vibrant red native flower attracts hummingbirds and thrives in moist to wet conditions, pairing well with hibiscus.

À éloigner de

  • Mint Mints are highly aggressive spreaders that can easily overwhelm and outcompete hibiscus in garden beds.
  • Japanese Knotweed This invasive plant is a vigorous grower that can shade out and crowd out hibiscus, especially in moist areas.

Espèces similaires

  • Swamp Rose Mallow This species has deeply divided leaves and brilliant scarlet flowers, preferring very wet conditions.
  • Rose Mallow Often found in similar wetland habitats, it features slightly smaller flowers and a very hairy calyx.
  • Dinner Plate Hibiscus This is a cultivated hybrid that is often confused with wild species, known for its exceptionally large, dinner-plate-sized flowers.

Science

Family
Malvaceae
Genus
Hibiscus
Order
Malvales
Class
Magnoliopsida
Native range
Eastern and Central United States
Conservation
This species is not currently of conservation concern.

It typically grows in wet meadows, swamps, and along stream banks, where it can tolerate occasional flooding.

Value to wildlife
nectar source, larval host plant
Pollinators
bees, butterflies, moths
Uses
ornamental

Au fil des saisons

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Flowering
Fruiting
Foliage

Repères écologiques

Salinity
2/9
Soil reaction
6/9
Light
7/9
Temperature
7/9
Moisture
7/9
Nutrients
6/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

How tall does Hibiscus moscheutos get?
It can reach heights of 3 to 7 feet.
When does Hibiscus moscheutos bloom?
It typically blooms from mid-summer through fall.
Does Hibiscus moscheutos come back every year?
Yes, it is a perennial and will regrow from its roots each spring.
What kind of soil does it need?
It thrives in moist to wet, well-drained soils.
Is it a good plant for attracting wildlife?
Absolutely! Its large flowers are highly attractive to bees, butterflies, and moths.

D'où vient le nom

The genus name 'Hibiscus' comes from the Greek word 'hibiskos,' which referred to the mallow plant. 'Moscheutos' is thought to be derived from an ancient Greek name for a type of mallow.

Bon à savoir

  • Also known as Rose Mallow.
  • It's a native perennial that dies back to the ground in winter.
  • Its flowers are a magnet for pollinators.
  • It prefers moist to wet conditions.
  • This hibiscus can grow quite large, sometimes reaching 7 feet tall.

Ton rose mallow a mauvaise mine ?

Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.

Télécharger l'appli

Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.