These perennial alyssum plants have a spreading habit and put out yellow flowers on upright stalks in April-May,Flowers boast a long blooming period, which is one reason why they're so often included in classic summer beds.
Lobularia maritima. Sweet alyssum, with its dainty, fragrant flowers, is often used in containers and hanging baskets to spill over the edges, creating a soft, frothy look. It's also a great edging plant because of its tidy, compact habit. plant Sweet alyssum with. Nemesia is a charming cool-season annual with pretty little snapdragon-shape flowers -- often fragrant -- that bloom in a wide range of colors. It does best in spring and fall (winter in mild-winter climates), though some varieties have better heat-tolerance than others. Outstanding Characteristics of Sweet Alyssum: Sweet alyssum flowers boast a long blooming period, which is one reason why they're so often included in classic summer beds. The flowers are rugged (unlike those on petunias, for example, which are a veritable blight upon the landscape after a strong rain has ruined them). Sun and Soil Requirements for Sweet Alyssum: Grow sweet alyssum plants in full sun to partial sun and in a loamy, well-drained soil. Uses for Sweet Alyssum: Sweet alyssum flowers form a striking border massed together as bedding plants. Occasionally, you'll still see the older classification, Alyssum saxatile. The cultivar Aurinia saxatilis 'Compacta' bears the common names, Basket-of-Gold and Dwarf Goldentuft.. Plant Type: Yellow alyssum flowers are herbaceous perennials. Characteristics of Yellow Alyssum Flowers: These perennial alyssum plants have a spreading habit and put out yellow flowers on upright stalks in April-May. The leaves are also attractive, being a blue-grey. Aurinia saxatilis foliage reaches at most 1' in height, with a spread of 18.  Sweet Alyssum Plants. Sweet alyssum flowers (Lobularia maritima syn. Alyssum maritimum) are useful in alpine rock gardens, borders, planters, hanging baskets and dry zones. They are small plants that may get 3 to 6 inches tall and produce clusters of tiny flowers in clumps. The blooms come in pink, salmon, purple, white and yellow. It is prone to few pest problems but may get stem rot or leaf blight where too much shade prevents the leaves and soil from drying out. Botrytis blight is a particular problem of sweet alyssum plants when they are grown in overly wet areas. Alyssum is a genus of about 100-170 species of flowering plants in the family Brassicaceae, native to Europe, Asia, and northern Africa, with the highest species diversity in the Mediterranean region. Common names for Alyssum are Basket of Gold or Gold Dust. The genera Lobularia and Aurinia are closely related to Alyssum and were formerly included in it. The widely cultivated species popularly known as Sweet Alyssum is Lobularia maritima. The common rockery plant is Aurinia saxatilis Plant taxonomy classifies sweet alyssum plants as Lobularia maritima. Don't confuse them with yellow alyssum (Aurinia saxatilis). Sun and Soil Requirements for Sweet Alyssum: Grow sweet alyssum plants in full sun to partial sun and in a loamy, well-drained soil. Uses for Sweet Alyssum: Sweet alyssum flowers form a striking border massed together as bedding plants. Basket Series: these plants spread quickly, and are grown especially for hanging baskets. Flowers in shades of white, pink, purple, yellow and peach. Aphrodite Series: white, yellow, peach, purple and pink shades for flower colors. One of the few annual alyssum varieties with yellow blooms. Wonderland Series: purple, white or pink flowers on compact (3 to 6 tall) plants. Snow Crystals: flowers are white and larger than traditional alyssum flowers. 'Rosie O Day': early blooming, 4 tall plant with spread of nearly 1. Varieties come in different shades of purple and pink, varying heights and spreads, some with double flowers (on varieties that florists use) and some with larger flowers.'Snowdrift': white flowers are larger than traditional alyssum. Grows from 3 to 6 tall. Plant Taxonomy for Sweet Alyssum: Plant taxonomy classifies sweet alyssum plants as Lobularia maritima. Don't confuse them with yellow alyssum (Aurinia saxatilis). Plant Type: Technically perennials, sweet alyssum flowers are widely treated as annual plants in the North. Characteristics of Sweet Alyssum: Although treated as an annual in the colder regions, sweet alyssum is one of the hardier annuals of the North: it may survive light frosts that tenderer plants will succumb to. Sun and Soil Requirements for Sweet Alyssum: Grow sweet alyssum plants in full sun to partial sun and in a loamy, well-drained soil. Uses for Sweet Alyssum: Sweet alyssum flowers form a striking border massed together as bedding plants. Few annual plants can match the heat and drought hardiness of sweet alyssum. The flowering plant has naturalized in the United States and thrives in a wide range of regions. Sweet alyssum flowers are so named for their lively fragrance and are members of the mustard family. It is prone to few pest problems but may get stem rot or leaf blight where too much shade prevents the leaves and soil from drying out. Botrytis blight is a particular problem of sweet alyssum plants when they are grown in overly wet areas.
http://www.bhg.com/gardening/plant-dictionary/annual/sweet-alyssum/ http://landscaping.about.com/od/flowerseed/p/alyssum_plants.htm http://landscaping.about.com/od/plantsforsunnydryareas/p/yellow_alyssum.htm http://www.gardeningknowhow.com/ornamental/flowers/alyssum/growing-sweet-alyssum.htm http://theplantencyclopedia.org/wiki/Alyssum http://landscaping.about.com/od/flowerseed/p/alyssum_plants.htm http://www.gardening.cornell.edu/homegardening/scened548.html http://landscaping.about.com/od/flowerseed/p/alyssum_plants.htm http://www.gardeningknowhow.com/ornamental/flowers/alyssum/growing-sweet-alyssum.htm
characteristics of alyssum plants