Initially, these 5 groundcovers were alluringly beautiful. But, over time, each grow very aggressively and become a major chore to restrained in the garden. Several states have declared one or more species as invasive and ban them for sale and interstate transportation. The most effective way to eliminate these aggressive groundcovers is to cut plants […]
Archive for the ‘Biennial’ Category
Rethink Before Planting These Five Groundcovers
Posted by Hugh on April 26th, 2024
Posted in acidic soil, Aggressive grower, alkaline soil, Attracting birds, Biennial, Bishop's weed (Aegopodium), Deciduous, Disease resistant, Drought tolerant, Euonymus (Ground Cover), Evening primrose (Oenothera), Evergreen, Ground cover, Invasive plant, Ivy (Hedera), Landscape ideas, Native Plant, Native Plant, Non-native, Perennials, Periwinkle (Vinca spp.), Propagation (Cuttings), Propagation (dividing), Propagation (Seed), Purchasing Plants, Root suckering, Soil drainage, Southern Appalachian Region, Spring flowering, Summer flowering, Summer heat tolerant, Trees & Shrubs, Weeds, winter hardiness, Wintercreeper (Euonymus) 
Comments Off on Rethink Before Planting These Five GroundcoversNew USDA Hardiness Zone Map
Posted by Hugh on January 7th, 2024
The USDA Plant Zone Hardiness Zone Map is an important garden reference to anyone who gardens in the continental United States, Alaska, Hawaii or Puerto Rico. The U.S. Department of Agriculture (USDA) today released a new version of its Plant Hardiness Zone Map (PHZM), updating this valuable tool for gardeners and researchers for the first […]
Posted in Annuals, Biennial, Environmental Conservation, Harvest Time, Heat Tolerance, Landscape ideas, Perennials, Planting tips, Purchasing Plants, Southern Appalachian Region, Trees & Shrubs, Tropical Plants (non-hardy), Winter Garden Interest, winter hardiness, Winter Protection Comments Off on New USDA Hardiness Zone MapSix Architecturally Tall Perennials
Posted by Hugh on August 11th, 2020
Here are six showy architectural gems to grow in your garden. All six are “big guys” and are valued for their bold presence, disease-free foliage, and their attractive flowers, that are also great pollinators. Queen of the Prairie (Filipendula rubra) is a U.S. native perennial that mimics an astilbe on steroids. This tall, upright, clump-forming […]
Posted in acidic soil, Annual rudbeckia (R. hirta), Annuals, Biennial, Butterflies, Compass Plant (Silphium), compost, Container garden, Deer resistant, Disease resistant, Drought tolerant, Environmental Conservation, Fall sunflower (Helianthus spp.), Fennel (Foeniculum), Fertilizing plants, Filipendula, Fragrant, Heat Tolerance, Hibiscus coccineus, Landscape ideas, mulching, Native Plant, Propagation (Cuttings), Propagation (Seed), Pruning, Purchasing Plants, Rosinweed (Silphinum), Rudbeckia 'Herbstonne', Soil Conservation, Soil drainage, Southern Appalachian Region, Staking, Summer flowering, Summer heat tolerant, Transplant problem Comments Off on Six Architecturally Tall PerennialsSiberian Wallflowers – Tough Winter Annuals
Posted by Hugh on March 26th, 2020
In areas of the U.S. where winters are mild, Siberian Wallflower (Erysimum cheiri), (formerly Cheiranthus cheiri), is an early flowering favorite in the late winter garden. The species hails from Southern Europe (USDA hardiness zones 7-9). Many books list them as biennials and a few as “tempermental perennials”. Wallflower is a woody-based herbaceous perennial subshrub in the mustard […]
Posted in acidic soil, Attracting Butterflies, Bee Favorite, Bees and other pollinators, Biennial, Failure to Bloom, Fertilizing plants, Flower Arranging, Flowers, Landscape ideas, mulching, Propagation (Seed), Purchasing Plants, Siberian Wallflower (Cheiranthus), Soil drainage, Spring flowering, Uncategorized, Wallflower (Erysimum), watering tips, Winter flowering Comments Off on Siberian Wallflowers – Tough Winter AnnualsSix Flowering Perennials For Downtown Areas
Posted by Hugh on July 3rd, 2019
Here is what some downtown areas in the Southeast and Midwest U.S. were planting this spring: Rudbeckia lacinata ‘Herbstonne’ aka ‘Autumn Sun’ is a long-blooming butterfly favorite with clusters of bright yellow ray flowers with large green cones from mid to late summer. Leaves are large, glossy, deep green, deeply cut along the stems. Black Eyed Susan (Rudbeckia fulgida […]
Posted in acidic soil, Attracting birds, Attracting Butterflies, Bee Favorite, Bees and other pollinators, Biennial, Black eyed Susan (Rudbeckia), compost, Coneflower (Echinacea purpurea), Container garden, Disease resistant, Drought tolerant, Fertilizing plants, Ground cover, Heuchera (coralbells), Landscape Construction, Landscape ideas, mulching, Native Plant, Native Plant, Perennials, Propagation (Cuttings), Purchasing Plants, Rudbeckia 'Herbstonne', Sage (Salvia), Shasta daisy (Leucanthemum), Southern Appalachian Region, Summer flowering, Summer heat tolerant, Switchgrass (Panicum), winter hardiness Comments Off on Six Flowering Perennials For Downtown AreasFill Summer Flower Beds With Annual Rudbeckias
Posted by Hugh on July 10th, 2018
Black-eyed Susan (Rudbeckia hirta) is a native wildflower. Annual or biennial forms are also called gloriosa daisy and brown-eyed Susan. In recent years public urban gardens are growing annual types. From summer into early autumn, brown-eyed Susans produce showy daisy-like blossoms up to 3-inches across with light or deep yellow rays and brownish-purple centers (“buttons”). Their cut flowers will decorate households. This coarse weedy […]
Posted in acidic soil, Annual rudbeckia (R. hirta), Annuals, Aphids, Attracting Butterflies, Autumn flowering, Bee Favorite, Bees and other pollinators, Biennial, compost, Container garden, deadheading, Drought tolerant, Fertilizing plants, Flower Arranging, Flower arrangments, Flowers, Landscape ideas, Leaf/needle spots, mulching, Native Plant, Planting tips, Powdery mildew, Propagation (Seed), Pruning, Purchasing Plants, Rust diseases, Slugs, Snails, Soil drainage, Southern Appalachian Region, Summer flowering, Summer heat tolerant, watering tips, winter hardiness Comments Off on Fill Summer Flower Beds With Annual RudbeckiasTis The Season For Ornamental Kales and Cabbages
Posted by Hugh on October 27th, 2017
Ornamental cabbage and kale (Brassica oleracea) are very close related to the same vegetables that we eat at our kitchen table. They are edible, just not as tasty. Plants are biennials, e.g. they produce leaves one year and flower the following spring. Ornamental kales have deeply cut serrated or ruffled leaves while leaves of ornamental cabbage […]
Posted in acidic soil, Annuals, Aphids, Attracting Butterflies, Autumn flowering, Biennial, Butterflies, Cabbage, Caterpillars, compost, Disease resistant, Fertilizing plants, Insect (Pest) Problems, kale, Landscape ideas, mulching, Ornamental vegetables, Pesticide recommendations, Planting tips, Propagation (Seed), Purchasing Plants, Rabbit/deer Protection, Soil drainage, Soil pH, Southern Appalachian Region, watering tips, Wildlife attractant, winter hardiness Comments Off on Tis The Season For Ornamental Kales and Cabbages
