Goldmarie, Bidens ferulifolia, caring for two teeth

Bidens, also known as Goldmarie, are among the most grateful summer flowers that can be planted individually or combined colorfully. Since the fruits of Bidens ferulifolia have two to six teeth, another name is two-toothed. The plants, also known as Goldmarie, are ideal for window boxes, bowls, large pots and hanging baskets. The popular balcony flower is originally native to North America and is distributed worldwide with over 250 varieties. As an annual plant, the two-toothed tree delights with an abundance of flowers from April until well into autumn. You can buy plants online from us. Discover the variety of our plants online shop.

Useful information LocationPlanting Care Watering Fertilizing Species Pests & Diseases FAQ

Matching products – buy Goldmarie

Botanical name: Bidens ferulifolia, Bidens hybrids
Other names: Goldmarie, Zweizahn, Gold-Zweizahn, Bidens
Use: balcony plant, hanging plant, traffic light plant, bedding plant, for planting under stems, cemetery planting, bee pasture plants
Origin: North and Central America
Flower colours: yellow, orange, yellow-orange, red, red-orange, red-yellow, pink, light yellow, rarely also white or cream
Special features: The daisy family sets special accents on the balcony and in the garden with its intensive pile and is also extremely easy to care for. The sun child grows exuberantly and is therefore best combined with other fast-growing plants. The good long-distance effect of the flowers and the harmonious growth are special.

In which location does Bidens ferulifolia feel most comfortable?

Goldmarie prefers an outdoor location with full sun. The richly flowering plants thrive best in the garden or on the balcony. A south-facing balcony or terrace is ideal. With less sunlight, the Goldmarie Bidens ferulifolia forms fewer flowers. The robust flowering plants can be outdoors from mid-May; if planted earlier, they may need to be covered with winter protection on cold nights. The annual plant is also ideal for planting in borders and cemeteries. The sun worshipers also delight in the bed long into autumn with lush growth and a multitude of flowers. Loosen the soil well before planting and use well-drained substrate. With us you will find the right planters outside.

How do I plant my buckhorn in the garden?

Goldmarie develops optimally on the balcony with an even water supply, regular fertilization and a sufficiently large volume of soil. Therefore, repotting is necessary immediately after purchase. Plant the popular plant in a larger container, in the window box or directly in the bed in the garden. Dipping is recommended before transplanting. Place the whole plant with the pot in a bucket of water and wait until the root ball is completely wet. Bidens need a high-quality substrate for growth and abundance of flowers. Use special potting soil for planting that is structurally stable and can store moisture and nutrients well. Balcony plant soil that already contains a basic supply of nutrients and has a pH value of 5 to 6 is ideal.

Our gardening tip: At least 2 to 3 liters of soil are required for each balcony plant. With less volume, the maintenance effort increases significantly and the Goldmarie cannot develop optimally.

How do I care for my gold two teeth?

Aside from watering and fertilizing, Bidens are extremely easy to care for. Flowering is discarded by the Goldmarie, new flowers are formed and there is no need to clean them out. A cut is not necessary, because the genus has a bushy growth character by nature. Only with a sufficient supply of fertilizer will the two-toothed Goldmarie flower all season long until the first frost. Overwintering the Goldmarie is difficult and newly purchased specimens are more decorative and willing to bloom next spring.

How do I water my Goldmarie correctly?

Bidens prefer a steady water supply. Regular watering is a prerequisite for rich blooms and growth. Especially in the blazing sun, the effort for watering in small vessels is high. Therefore, vessels with a large volume of soil or water storage boxes are ideal — this reduces the effort for watering. The frequency of watering depends largely on the size of the plant, the location, the radiation and the volume of soil. In sunny phases in midsummer, daily watering may be necessary, with lush plants and little soil volume even twice a day. If the two-tooth suffers from a lack of water, the mostly golden-yellow flowers fall off. However, it is important that there is no waterlogging and that the excess water can drain off. This effectively prevents root damage.

Our gardening tip: Watering in the morning is ideal, so the plant has the moisture available early on. Water storage boxes help to minimize the watering effort. It is important that you water as close to the roots as possible and not over the leaf.

How do I fertilize my Bidens ferulifolia?

In addition to a sunny location and an even water supply, Bidens ferulifolia need regular fertilizer. The balcony plants are among the species that have a high need for nutrients. When planting, it is advisable to mix in a slow-release fertilizer. This works for several months depending on the temperature and type. The long-term effect is therefore comfortable and the flowering plants have a basic supply. In addition, 4 to 6 weeks after planting, liquid flower fertilizer with guano is added. The revitalizing humic substances it contains promote vitality and flower formation.

Our gardening tip: Long-term fertilizer sticks for balcony plants are a practical way of optimally supplying the Goldmarie with fertilizer without adding liquid fertilizer on a weekly basis. It is also a practical solution for single plants on the terrace.

What types of two-tooth are there?

The genus Goldmarie includes cia. 240 species. In addition to the native wild plant, which is known as nodding two-toothed with dark green leaves and small flowers, there are a variety of cultivated forms. The flowers of the Goldmarie are typical of the members of the Asteraceae family (daisy family). The most common species has yellow flowers that are bright and simple in flower shape. Breeding and selection have resulted in other flower colors. The colorful Bidens «Beedance» series in particular has been popular as a bee-friendly balcony plant for a few years. The pollen and nectar-rich plants serve as a valuable food source for many bees and insects.

What pests and diseases can my buck get?

With the right site conditions and optimal care, Bidens feruifolia are floriferous. Well-nourished specimens are usually robust and not very susceptible to pests or diseases.

aphids

Bidens are more susceptible to aphid infestation, especially during periods of less light and slower growth. Rinse the plants thoroughly with a jet of water at the first infestation. This first measure usually helps. Natural plant strengtheners help the plant to grow stronger tissue, which is less likely to be attacked by sucking insects.

Are you looking for more information about pests and diseases or do you have questions about a plant problem? Our plant doctors will be happy to help you – in person and online!

FAQ — Frequently Asked Questions about Gold Two Tooth

Which plants are suitable for combining with Zweizahn?

All plants that prefer sun are ideal. The plants should grow at a similar rate so that they are not overgrown. Examples of combinations are: hanging geraniums, petu

nien, magic bells or verbs. Bidens ferulifolia are predestined as underplanting of stems.

How can two teeth be propagated?

The genus Bidens can be easily propagated by cuttings. The best time for this is late summer. Only cut the cuttings from healthy plants with a knife. Placed in propagation pots, new roots form on the young plants within 3 to 4 weeks. Most of the varieties are cultivated as annuals. Propagation by seeds is also possible, but rare. Sowing bidens is done in January on the windowsill.

How long can the Bidens’ shoots get?

Depending on the variety, the shoots are 40 to 60 cm long. If necessary, long shoots can be shortened.

Can Goldmarie serve as a food source for bees and insects?

Especially varieties with single flowers contain pollen and nectar and thus serve as bee pasture throughout the summer. The «Beedance® Painted Red» (bee dance) in particular magically attracts bees.