Floridata Plant Encyclopedia

A Floridata Plant Profile 1133 Nemesia strumosa

Common Names: nemesia Family: Scrophulariaceae (figwort Family)
Image Gallery

The Confection Series nemesias are low-growing plants that are perfect containers and borders at the front of the garden.
The blue as can be flowers of this member of the Confection Series, like most nemesias, have an appealing light fragrance.


Nemesia strumosa is a bushy cool weather annual that gets up to 2 ft (60 cm) tall and, branching mostly from the base, gets up to a foot (30 cm) across. The leaves are opposite, linear to lance shaped, and about 1.5 in (4 cm) long. The margins may be toothed or entire. The flowers are borne in showy terminal racemes to 4 in (10 cm) high. Each flower is about a half inch (1.5 cm) across. The corollas can be pink, red, yellow, orange, blue, lavender or white. They have yellow throats and are often bicolored. Most of the plants in cultivation are cultivars, and there are many named. ‘Danish Flag’ has flowers that are red and white; ‘Grandiflora’ has larger flowers; flowers in the Carnival Series are dwarf; those in the Sparkler Series include bi- and tri-colors. Some of the commercially available cultivars may in fact be hybrids between N. strumosa and N. versicolor. The nemesia Compacta Series and Confection Series are relatively new introductions noteworthy for their long blooming times, tolerance of hot summers and mild fragrance.


Nemesia strumosa and N. versicolor are both native to South Africa where they grow in sandy, scrubby, often disturbed, situations in a temperate climate.


Light: Grow nemesia in full sun. A light, dappled shade is recommended for areas with hot summers. Moisture: Nemesia likes a moist, but well drained soil, and does best in slightly acidic soils. Water faithfully in hot, dry weather. Hardiness: USDA Zones 9 - 11. Nemesias flower best where summer days are not too hot and nights are fairly cool. Considered “cool weather annuals”, they do not tolerate frosts or temperatures much above 85°F (29°C). In frost free areas they are grown in winter. Propagation: Nemesia typically is propagated by seed, even the cultivars and named series. Seeds usually are started indoors 6-8 weeks before last frost as you would peppers and tomatoes. The little plants must be handled with care as the stems are easily broken. Cuttings of fast growing young tips (without flowers or flower buds) are easy to root, especially under mist. See Warnings, below for restrictions on propagation.
This white nemesia, N. fruticans, is a perennial that is usually grown as an annual. Unlike many of the popular low-growing N. strumosa selections, it holds its flowers on erect stems that are about a foot tall.


Nemesias are fast growing annuals, commonly used in mixed flower beds and borders where they are planted out in spring. They are easy to grow and they bloom soon after planting out. Nemesia makes a nice container plant for the patio or deck. Use some in a hanging basket with other pretty annuals. Pinch back the tips of new growth to promote bushiness, and cut back more aggressively after the first blooming to encourage a second flush of flowers. Nemesia flowers are short lived, and not suitable for cutting.


Create a riot of color in a bright sunny flower bed or border with nemesia and other colorful annuals such as violets, pansies, poppies, cosmos, petunias or verbenas. Mix and match in a hanging basket, window box or a patio planter.

There are some 50 species in the genus Nemesia, all from temperate South Africa. Some are perennials and some are sub-shrubs. Few are commonly found in cultivation. N. foetens, a shrubby perennial, is perhaps the one most likely to be encountered.


It is illegal to propagate the Nemesia 'Confection' and 'Aromatica' series of hybrids without specific permission from the holders of the plant patents: Sygenta Flowers, Inc., and Ball Horticultural Inc, respectively.

Steve Christman2/20/11

Master Plant List

Click here to find plants in our Encyclopedia using the Master Plant List grid. Use this widget to search, sort and filter Floridata's plant database to easily locate Plant Profile pages. Use the dropdown menus to filter the grid to display items matching the selected Plant Type and Feature tags.

Plant Type Tags

tree icon
shrub icon
perennial plant icon
aquatic plant icon
cactus and succulents icon
grass icon
vine icon

Feature Tags

Attracts Birds
Attracts butterflies
Attracts Hummingbirds
Edible Plants
Cutting and Arranging
for pots and containers
drought tolerant plants
grows in wet soils
ornamental fruits
fall color
foliage plants
easy to grow plants
fast growing

Site Search

Use Google to search all of the pages on Floridata including the Plant Profile pages

Nemesia species profiled on Floridata:

Nemesia strumosa

( nemesia )

Copyright 2015 Floridata.com LLC