Swamp hibiscus (Hibiscus coccineus), aka scarlet rose mallow, is a hardy perennial plant that grows in swamps, marches and roadside ditches in the Southeastern U.S. (USDA hardiness zones 5-9). It can grow 6 to 8 feet tall and 2 to 3 feet wide. The 5- to 6-inch-long palmate leaves are 3 – 7 lobes and have jagged […]
Archive for the ‘Hibiscus (mallow) sawfly’ Category
Scarlet Rose Mallow
Posted by Hugh on August 16th, 2025
Posted in acidic soil, Aphids, Attracting birds, Attracting Butterflies, Bees and other pollinators, Deciduous, Disease resistant, Fertilizing plants, Heat Tolerance, Hibiscus (mallow) sawfly, Hibiscus coccineus, Hummingbird, Japanese beetle, Landscape ideas, mulching, Native Plant, Perennials, Planting tips, Propagation (Seed), Pruning, Purchasing Plants, Rust diseases, Soil drainage, Staking, Summer flowering, watering tips, winter hardiness 
Comments Off on Scarlet Rose MallowGrowing Rose Mallow (Hardy Hibiscus)
Posted by Hugh on August 6th, 2025
Summerific® Hibiscus are all Perennial Hibiscus, primarily tracing their parentage back to Hibiscus moscheutos. This species is native to North America, specifically the central and eastern regions of the U.S. Perennial Hibiscus are hardy from zones 4-9 and dieback to the ground each year. They produce exceptionally large flowers in an increasingly wide color range. All […]
Posted in acidic soil, Bees and other pollinators, Deciduous, Disease resistant, Disease resistant, Fertilizing plants, Hardy hibiscus, Hibiscus (mallow) sawfly, Hummingbird, Landscape ideas, mulching, Native Plant, Perennials, Planting tips, Poisonous or toxic, Propagation (dividing), Purchasing Plants, Soil drainage, Southern Appalachian Region, Summer flowering, watering tips, winter hardiness Comments Off on Growing Rose Mallow (Hardy Hibiscus)Celebrate Three New Summerific® Hibiscus Varieties
Posted by Hugh on July 31st, 2024
Summerific® is a trademarked series of Rose Mallow (Hibiscus moscheutos) from Walters Gardens Inc. in Zeeland, Michigan. It is a native perennial hibiscus that emerges from the soil in late spring and grows rapidly. Both their huge flowers and foliage are natural focal points in the summer garden. This long-lived perennial can be utilized as […]
Posted in acidic soil, Attracting Butterflies, Bees and other pollinators, Deciduous, Deer resistant, Disease resistant, Fertilizing plants, Heat Tolerance, Hibiscus (mallow) sawfly, Hibiscus moscheutos, Hummingbird, Japanese beetle, Landscape ideas, Light requirement, mulching, Native Plant, Native Plant, Perennials, Planting tips, Propagation (Cuttings), Pruning, Purchasing Plants, Soil drainage, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant, watering tips, Winter Protection Comments Off on Celebrate Three New Summerific® Hibiscus VarietiesSwamp Hibiscus
Posted by Hugh on September 5th, 2023
Swamp hibiscus (Hibiscus coccineus), aka scarlet rose mallow, is a hardy perennial plant that grows in swamps, marches and roadside ditches in the Southeastern U.S. (USDA hardiness zones 5-9). It can grow 6 to 8 feet tall and 2 to 3 feet wide. Its 5- to 6-inch-long leaves are palmately lobed into 3, 5, or 7 parts. […]
Posted in acidic soil, Aggressive grower, Aphids, Attracting birds, Attracting Butterflies, Bees and other pollinators, Butterflies, Disease resistant, Fertilizing plants, Hardy hibiscus, Hibiscus (mallow) sawfly, Hummingbird, Japanese beetles, Landscape ideas, Leaf/needle spots, mulching, Native Plant, Native Plant, Perennials, Planting tips, Propagation (Cuttings), Propagation (Seed), Pruning, Purchasing Plants, Soil drainage, Southern Appalachian Region, Staking, Summer flowering, Summer heat tolerant, watering tips, Wildlife attractant, Wind protection, winter hardiness, Winter Protection Comments Off on Swamp HibiscusMallow Plant Breeders Developing Resistance To Hibiscus Sawfly
Posted by Hugh on July 16th, 2021
Mallows, hardy hibiscus, and perennial hibiscus (Hibiscus moscheutos) are vigorous shrub-like growers on sturdy 4-5 feet tall (and 2-4 feet wide) stems. The species is native to wetland areas from Ontario and Massachusetts south to Ohio, Indiana, Alabama and Florida. Huge colorful 4-6(9) inch wide flowers have five overlapping petals with reddish-purple to dark crimson […]
Posted in acidic soil, Bees and other pollinators, Breeding Plants, Container garden, Deciduous, Disease resistant, Disease resistant, Fertilizing plants, Hardy hibiscus, Hibiscus (mallow) sawfly, Hibiscus moscheutos, Insect (Pest) Problems, Japanese beetle, Landscape ideas, mulching, Native Plant, Perennials, Planting tips, Propagation (Cuttings), Purchasing Plants, Southern Appalachian Region, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on Mallow Plant Breeders Developing Resistance To Hibiscus SawflyCelebrate Summerific® Rose Mallow (Hibiscus) Week
Posted by Hugh on August 6th, 2020
Perennial hibiscus (Hibiscus moscheutos) is commonly known as rose mallow or dinner plate size hibiscus. Blooms measure a huge 7-9 inches across. Plants are exceptionally hardy, and can withstand winters as cold as zone 4 (-20°F to -30°F) in Minnesota (zone 4) and the heat of zone 9 (20°F -30°F) in Florida. Each flower lasts […]
Posted in acidic soil, Attracting Butterflies, Bee Favorite, Bees and other pollinators, Breeding Plants, Container garden, Disease resistant, Disease resistant, Fertilizing plants, Hibiscus (mallow) sawfly, Hibiscus moscheutos, Hummingbird, Japanese beetles, Landscape ideas, mulching, Native Plant, Native Plant, Perennials, Planting tips, Purchasing Plants, Soil drainage, Southern Appalachian Region, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on Celebrate Summerific® Rose Mallow (Hibiscus) WeekHibiscus Sawfly Devastates Plant Foliage
Posted by Hugh on August 3rd, 2011
The hibiscus (mallow) sawfly is a devastating pest of hibiscus (Hibiscus moscheutos) and hollyhock (Alcea rosea). The adult sawflies are small, barely a quarter inch long. They are mostly black, except for a yellowish brown spot on their thorax, and their smoky wings. The pale green larvae mature to 1/2 inch in length. The larvae […]
Posted in Hibiscus (mallow) sawfly, Hibiscus moscheutos, Hollyhock (Alcea), Perennials, Southern Appalachian Region Comments Off on Hibiscus Sawfly Devastates Plant Foliage
