French Marigolds are commonly planted in butterfly gardens as a nectar source.

If nematodes are a problem in your garden, rotating the vegetable patch with a bed of French marigolds may help.

Only French marigolds (T. patula) are effective in controlling nematodes.

T. patula is the so-called French marigold, a short, compact and floriflerous with flowers about an inch across.

You could plant some flowers among the veg, French marigolds are particularly good because as well as looking pretty they discourage pests.

French marigolds find a place each year and gloriosa daisies make a splendid late display as well as being marvellous for cutting.

The French marigold (Tagetes patula) is a species in the daisy family (Asteraceae).

From the short border hugging French marigolds to the giant-sized African marigolds, with their huge, bright flowers, these plants have been true winners.

The plants within the screen are typical of those bedded throughout the park, which include French marigolds, roses, tulips, phlomis, sedum and silver dust.

There could be tall African marigolds, rising to three feet or more, and sprightly dwarf French marigolds, some only six inches tall.

Summer is when the largest quantity of flowers bloom, among them geraniums, dahlias, zinnias, saxifrage, French marigolds, daisies and nympheas.

There are also easy-to-grow-annuals like French marigolds (butterflies prefer the single-petaled types) to tall velvety orange Mexican sunflowers.

Tagetes (Mexican marigold, African marigold or French marigold)

Bilsland D, Strong A: Allergic contact dermatitis from the essential oil of French marigold (Tagetes patula) in an aromatherapist.

Despite the names African Marigold and French Marigold, the marigold is actually a native of Mexico [source: Jauron].

The first 1,000 people to attend each day will be given a French marigold called Saffron at the colorful flower and herb garden of Family Circle at the entrance.

Rotations with species such as French marigold (Tagetes patula), Sunn hemp (Crotalaria juncea), are recommended [4, 11].

In the horticulture classes there will be tulips, hyacinths, daffoldils and amaryllis; topiary, orchids and a special challenge class of French marigolds; jardinieres, espaliers and French model gardens.

There are two major species of marigolds, the African Marigold (Tagetes erecta), which is also known as the American marigold, and the French Marigold (T. patula).

This list includes favourites such as sedums, lavenders, origanum (I have only recently cottoned on to Origanum laevigatum), French marigolds (Tagetes patula) and Michaelmas daisies.

Some of the popular flowers included the Lilium Candidum ( or Madonna lilu, used to symbolize fertility and chastity), narcissus, pinks, iris, jasmine, pansies, French marigolds, cornflowers, and rosemary.

Those who believe in this origin site the medieval French marigold (Tagetes patula) flower of Tunes, a herbaceous plant similar to the carnation (with cut petals and yellow flower) and common here as well as in Tunisia.

Plants like pansies will flower for longer, but even those that flower for a long time anyway, like African and French marigolds, will look neater and tidier if dead-headed, and the dead flowers will not detract from flowers that are still blooming.

Marigolds do best in full sunlight, although Tagetes patula may also perform well in light shade.