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Tagetes: Sowing, Location And Care Of The Marigold

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Tagetes can be found in many gardens as a rich flowering ornamental plant. Find out here what other uses the marigold has and how to cultivate it successfully.

Tagetes are not only attractive flowering plants, they are also edible and repel pests. We will introduce you to the marigold and give you tips on the selection of species and varieties as well as on cultivation and use.

Tagetes: flowering time, origin, and characteristics

Marigolds ( Tagetes ) belong to the Asteraceae family and originally come from northern Central America, mainly from Guatemala and Mexico. The genus is estimated to have around 50 to 60 species, some of which are grown here as annual ornamental plants. Tagetes is also known as velvet flowers or Turkish carnations. On the day of the dead, the famous Mexican festival of the dead, the orange tagetes are used as decoration for flower garlands and graves. This is where another name comes from: flower of the dead.

Tagetes are annual or perennial plants that can grow upright or bushy. Depending on the type and variety, they can be between 20 cm and 3 m high. Tagetes usually have pinnate, dark green leaves, which often smell tart and aromatic. The flowering period of the Tagetes usually begins in June and lasts until October, but some species do not flower until autumn.

The simple to double flowers are grouped in panicles or individually on long flower stalks. They can be colored yellow, orange, red or white, but are very often multicolored. After pollination, the elongated seeds of the marigold, the so-called achenes, form. And as it is typical for the daisy family, such as the dandelion ( Taraxacum officinale ), these also form a kind of elongated, white parachute: the pappus.

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Are marigolds friendly to bees? The unfilled flowers of marigolds in particular attract bees and other pollinating insects. In midsummer, the newly blooming marigolds are a welcome source of food.

Tagetes: sowing, location & care of the marigold

The most beautiful Tagetes varieties and species

There are many ornamental and edible species among the marigolds. Tagetes erecta hybrids and Tagetes patula, and increasingly Tagetes tenuifolia as well, are planted in our gardens. We will introduce you to the most important species and their most beautiful varieties.

  • Upright marigold ( Tagetes erecta ): Annual marigolds with a stature height of 30 to 80 cm. The flower heads are often very large and have many petals. However, there are also varieties with simple flowers. This also includes the dye tagetes, whose orange flowers are used to dye wool and food yellow. Many varieties are hybrids and labeled as Tagetes x erecta. Popular varieties are the white Tagetes ‘Arctic’ or the dwarf forms ‘Strawberry Blonde’ and Tagetes ‘Bolero’ with a height of only 20 cm.
  • Licorice tagetes ( Tagetes filifolia ): The bushy licorice tagetes, which grow to a height of around 20 cm, form numerous, narrowly pinnate, sweet, and licorice-like tasting leaves. It forms tiny, white, inconspicuous flowers in autumn.

Tagetes: sowing, location & care of the marigold

  • Lemon Tagetes (Tagetes lemmonii ): Perennial Tagetes species with a height of about 40 cm. It blooms very late from autumn and in winter quarters into spring. Leaves and flowers are edible and have a spicy, lemony-sweet aroma.
  • Yauthli or winter tarragon ( Tagetes Lucida ): Perennial marigold with an intense aroma of tarragon, aniseed, and fennel. The yellow Tagetes Lucida grows to about 80 to 100 cm high and is hardy down to about -6 ° C. The Aztecs already used the herb to flavor dishes and for religious rituals.

Tagetes: sowing, location & care of the marigold

  • Giant Spiced Tagetes (Tagetes minuta ): Up to 300 cm high marigold with very large, pinnate leaves that smell of citrus fruits. It is also known as huacatay and is used as a spice in various Mexican dishes.
  • Low marigold ( Tagetes patula ): Tagetes species that remain small and reach a height of 20 to 25 cm. Here too, hybrids in the form of Tagetes x patula are often offered. The Tagetes’ Carmen ‘shows deep orange-red, double flowers, while other varieties, such as’ Mr. Majestic ‘, simple, yellow-red striped petals form. ‘Bambino’ has two-colored flowers in yellow and orange, while ‘Durango Red’ has cherry-red, double flowers. Tagetes patula is particularly effective against harmful nematodes.
  • Narrow-leaved marigold or spiced tagetes ( Tagetes tenuifolia ): About 40 cm high Tagetes species with small, pinnate leaves and numerous simple flowers. Both are edible and offer a refreshing citrus aroma that varies between lemon, tangerine, and blood orange depending on the variety. Snails are not very attracted to this species and they are often spurned. Varieties such as ‘Starfire’, ‘Lemon Gem’ and ‘Luna Orange’ convince with a multitude of small flowers in light yellow, orange, or red.

Tagetes: sowing, location & care of the marigold

Planting marigolds: location, sowing, and pricking out

Tagetes are ideal for planting balcony boxes, as a mixed culture in vegetable beds, or as a flowering, low bed border. A planting distance of 20 to 30 cm to other plants should be maintained. If you plant marigolds in groups, the distance between the plants is about 15 to 20 cm. In the following, you will find out what else you should consider when planting marigolds.

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The right location for marigolds

Tagetes prefer a sunny to partially shaded, warm location. They thrive very well in well-drained, humus-rich garden soils. A loose, nutrient-rich potting soil, should be used for planting pots and window boxes. With its high compost content, this saves moisture and releases it to the plant roots when required. In addition, the nutrients it contains provide the young marigolds with everything they need in the first few weeks after planting.

Tagetes: sowing, location & care of the marigold

Marigold planting time

Tagetes are frost-sensitive, annual, or rarely perennial plants. They are therefore first placed on a warm window sill and only put out in the open from mid-May after the ice saints.

Sowing marigolds

Marigolds are grown from seeds so that they can be put outside as young plants in May. With the help of a preculture on the warm, light window sill, they will bloom as early as June. Alternatively, sow the seeds directly outside in May. However, these plants will only start flowering much later. The marigold seeds for the preculture are sown between January and March. Fill a suitable cultivation container with nutrient-poor sowing compost and apply the seeds to the surface. Now moisten the soil well. Marigold flowers are light germs, so their seeds are hardly covered with earth and only pressed down well. At 18 to 20 ° C and sufficient moisture, the seeds need about two to three weeks to germinate.

Tagetes as green manure sow: In a diverse Blühmischung the year Tagetes leaves as green manure for soil improvement or as bee pasture sow. The robust spice tagetes Tagetes tenuifolia is best suited for this, as its numerous, simple flowers provide food for pollinating insects. So that the marigolds still bloom, they should be sown directly outside from April.

Prick the marigolds

As soon as the seedlings develop the first true leaves, i.e. pinnate leaves, they can be pricked out and put into individual pots. Except for the dwarf forms, the plants are then about 5 to 8 cm in size. To promote growth, the marigolds are now converted into nutrient-rich potting soil. With a prick stick, moving is easy and without serious damage to the root or seedling.

Tagetes: sowing, location & care of the marigold

Care of the marigolds

Marigolds are generally easy to care for. Immediately after planting, however, it is advisable to put on a snail cover, because the voracious mollusks love marigolds. In summer, they must be watered regularly, especially in planters on patios and balconies. However, never water the plants overhead, as the moisture promotes fungal diseases.

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Tagetes are particularly sensitive to gray mold ( Botrytis cinerea). Sick plant parts and plants should therefore be removed. You can achieve a good supply of nutrients and long-lasting blooms with the help of organic liquid fertilizer. This is applied together with the irrigation water and in this way washes the nutrients directly to the roots. To encourage the plant to continuously develop new flowers, you can cut out the faded flower heads over and over again during the summer. In this way, the flowering time of the marigold can be extended by a few weeks.

Tip: The leaves of the marigolds and especially the sap of the plants can cause blistering rashes – a so-called phototoxic contact dermatitis – in sensitive people after skin contact and sun exposure. It is, therefore, best to always wear gloves when planting and cutting marigolds.

Propagate marigolds

Tagetes are propagated from seeds. In autumn, marigold seeds can be obtained. Although these are not true to type, they are very easy to collect and store. Annual marigolds begin to wither and wither in late autumn. Cut the brown seed heads from these plants between September and October. They are allowed to dry in the house for a few weeks at room temperature. Then free the seeds from the flower capsules and store them in a dark, dry, and cool place. If stored in this way, marigold seeds can germinate for several years.

Tagetes: sowing, location & care of the marigold

Is the marigold hardy?

Tagetes are generally not hardy. Annual species die in autumn anyway. Perennial marigolds, such as Tagetes lemmonii and Tagetes Lucida, are only partially hardy because they can only tolerate low temperatures. These species must be overwintered frost-free, cool, and light in the winter garden, greenhouse or garden shed. Throughout the winter, marigolds should only be watered sparingly to prevent mold growth.

Tagetes against pests

In addition to the citrus-like fragrances, marigolds produce other compounds that they release into the soil via their roots. These root exudates are very effective in driving away soil-borne pests such as noxious species of nematodes. Together with the marigold ( Calendula officinalis ), which also drives away nematodes, they should not be missing in any vegetable patch. In the greenhouse, marigolds drive away from the whitefly (Aleyrodidae) as underplanting. They, therefore, fit perfectly into a mixed tomato culture and, with their attractive flowers, also attract pollinators to the tomato blossom.

Tagetes: sowing, location & care of the marigold

Use in the kitchen: is the marigold edible?

The marigold is edible and the flowers and leaves of the marigold are also important in herbal medicine. Flowers of the Tagetes patula are used against night blindness, hiccups, and diarrhea. Spice mixtures or teas are made from plant parts, which have an aromatic scent of citrus plants. In addition to an edible ornament on the plate, the flowers are also good coloring agents for rice or baked goods.

A close relative of the marigold is the zinnia ( zinnia ). We will introduce you to the most beautiful varieties of the popular annual summer flower and give you tips on sowing, care, and propagation.

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