- Plant black-eyed susanne correctly
- care tips
- Which location is suitable?
- The right planting distance
- What soil does the plant need?
- What is the best planting time?
- When is flowering time?
- Cut black-eyed susanne correctly
- Water black-eyed susanne
- Fertilize black-eyed susanne properly
- hibernate
- Multiply black-eyed susanne
- Black-eyed susanne in a pot
- Is black-eyed susanne poisonous?
- Black-eyed susanne does not bloom
- Yellow leaves
- How can I prefer black-eyed Susanne?
- Beautiful varieties
The black-eyed Susanne impresses with brightly colored cascades of flowers that climb to lofty heights or act as a furious ground cover. How to get the blossom festival out of the year-old climber is no longer a mystery to you. Important questions about plants and care are answered here.
Black-eyed Susanne climbs up everything she finds
Table of Contents
Show all- Plant black-eyed susanne correctly
- care tips
- Which location is suitable?
- The right planting distance
- What soil does the plant need?
- What is the best planting time?
- When is flowering time?
- Cut black-eyed susanne correctly
- Water black-eyed susanne
- Fertilize black-eyed susanne properly
- hibernate
- Multiply black-eyed susanne
- Black-eyed susanne in a pot
- Is black-eyed susanne poisonous?
- Black-eyed susanne does not bloom
- Yellow leaves
- How can I prefer black-eyed Susanne?
- Beautiful varieties
- The planting pit is 1.5 times deeper and wider than the root ball
- Mix the excavation with leaf soil, compost and horn shavings
- Install the trellis before potting and planting the Thunbergia
- Tie the lower tendrils to the climbing aid and water generously
- Water the plant in a balanced way without causing drought stress or waterlogging
- Ideally, use soft rainwater and tap water alternately
- Fertilize organically or mineral-organically every 14 days from May to October
- Cut back by a third 3 weeks after planting for bushy growth
- Clean out wilted flower stalks several times a week
- Prune the plant back to 40-50 cm in autumn
- Place in a bright winter quarters with temperatures of 15-17 degrees Celsius
- Water so much that the root ball does not dry out
- Do not apply fertilizer from November to March/April
- Take cuttings from overwintered plants in February/March and root them in poor substrate
- Harvest the seeds in autumn, keep them dry and sow them indoors from February
- Fill the pot halfway above the drainage with substrate
- Make a hollow with your fist to put the potted root ball in
- Fill up the soil up to the lower pair of leaves, leave a pouring edge free and water
- Water that is too hard: water immediately with collected rainwater
- Nutrient deficiency: fertilize every 14 days from May to October
- Spider mites: spray the plant repeatedly with a mix of 1 liter of water and 15 ml each of soft soap and alcohol
- Fill small pots with seed soil or peat sand
- Insert 1-2 seeds into each of them at a maximum depth of 1 cm
- Moisten with a fine shower and put on a transparent cap
- Susi: Charming variety with bright orange flowers and a dark eye
- African Sunset: Particularly vigorous climbing plant with wine-red flowers around a black eye
- Susi White Black Eye: Gorgeous breed with white flowers and a black eye
- Superstar Orange: The climbing plant lives up to its name with huge, orange flowers from May to October
- Flower Sensation Yellow: Flowering variety in yellow-black that reaches a height of up to 2 meters
Plant black-eyed susanne correctly
Plant the black-eyed Susanne, which you have brought up yourself or bought ready-made, from mid-May in the bed or in the outdoor tub. In advance, place the still potted root ball in soft rainwater until no more air bubbles rise. Meanwhile, prepare the soil in a sunny to semi-shady place by weeding and removing roots and stones. This is how it goes on:
The planting is similar in balcony boxes or tubs, although in this case some potsherds under the substrate serve as drainage.
care tips
In order to stage a bright sea of flowers with a Thunbergia, the following care is important:
In view of the minimum temperature of 15 degrees Celsius, the hibernation of a black-eyed Susan turns out to be quite complex, especially since the procedure is not always crowned with success. If a bright winter quarters with 15-18 degrees Celsius is available, you can try it. During the winter, only little is poured and not fertilized.
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Which location is suitable?
The black-eyed Susan feels extremely well in a sunny to partially shaded, warm and wind-protected location. Ideally, the climbing plant is also protected from the pelting rain, such as under an eaves or a terrace. The tropical beauty makes no capricious demands on the soil. The soil should be loose, humus-rich and rich in nutrients and without the risk of waterlogging.
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The right planting distance
If you plant the black-eyed Susanne in the group, you are correct with a planting distance of 50 cm. If the climbing artist acts as a summer groundcover, arrange 4-6 specimens per square meter.
What soil does the plant need?
As an annual climbing plant, creative hobby gardeners prefer to cultivate the black-eyed Susanne in a bucket with an integrated climbing aid. So that the plant can quickly develop its impressive flower and leaf volume, we recommend a high-quality compost-based potting soil as a substrate. If the Thunbergia is used as a summer fence or facade greening, the soil should be humus, deeply loose and rich in nutrients.
What is the best planting time?
The black-eyed Susanne comes from the tropical warm regions of Africa. Thus, the climbing plant does not tolerate frosty temperatures. The time window for planting opens in mid-May, when the ice saints have said goodbye.
When is flowering time?
Thunbergia that are brought indoors and planted in May immediately start blooming. The flowering period extends into October as long as the temperatures are above 15 degrees. So that the colorful appearance is not impaired and new flowers can open unhindered, withered shoots are cleaned regularly.
Cut black-eyed susanne correctly
If you cut back the tendrils by a third after the first 3 weeks outdoors, the black-eyed Susanne thrives wonderfully bushy and compact. On a Thunbergia, the use of pruning shears is also limited to regularly cleaning out withered flowering shoots. If you carry out this care measure routinely, the climbing plant will present a neat appearance throughout the summer and remain willing to flower constantly. If you aim to harvest the seeds in autumn for sowing next year, leave some flowers on the plant so that the approx. 20 mm long fruits can develop.
Water black-eyed susanne
Black-eyed Susanne evaporates plenty of moisture through its lush mass of flowers and leaves. Therefore, water regularly as soon as the substrate dries. Use soft rainwater and tap water alternately, as the tropical plant quickly suffers from an excess of lime. Nutrient-rich pond water is also best suited for watering. Please make absolutely sure that the plant is not watered overhead. If you pour the irrigation water directly onto the roots with the spout of a jug, all is right with the world for the climbing plant.
Fertilize black-eyed susanne properly
In order for black-eyed Susanne to put on her opulent dress of blossoms and leaves, she needs a rich supply of nutrients. Fertilize the climbing plant every 2 weeks from May to October. In the bed, compost, horn shavings, (32.93€) horse manure or guano (121.99€) provide the necessary plant nutrition. In the planter, liquid fertilizer is ideal for flowering plants because of the uncomplicated administration.
hibernate
Since a black-eyed Susanne already gives up at temperatures below 15 degrees, we recommend a one-year cultivation. If, on the other hand, you have plenty of space, you are welcome to experiment with hibernation. Things to watch out for:
Before the hibernated Thunbergia moves into the garden or onto the balcony in May, repot into fresh substrate and a slightly larger bucket.
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Multiply black-eyed susanne
If you would like to enjoy the lush blooms of a Thunbergia again next summer, you have the choice of the following two methods of propagation:
At this point, however, it should not be concealed that the cuttings method is rarely crowned with success. The prospects of successful sowing are significantly improved if you use certified seeds from specialist retailers.
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Black-eyed susanne in a pot
In the pot with integrated climbing aid, the black-eyed Susanne proves to be a breathtaking privacy screen on the sunny balcony or in the sheltered seat in the garden. So that the flowers leave nothing to be desired, choose a high-quality compost-based potting soil as a substrate and add a few handfuls of lava granules (€13.99). Place some pieces of pottery shards over the water drain as effective drainage against waterlogging. How to properly plant a Thunbergia:
Attach the lower tendrils to the climbing aid so that the plant can find its way to the sky. Check the soil daily with a thumb test to water when it is dry. Apply a liquid fertilizer every 2 weeks from May to October. The more consistently you clean withered flowers, the more magnificently the black-eyed Susan will bloom in the pot.
Is black-eyed susanne poisonous?
At first glance, the intense luminosity of its flowers gives rise to the suspicion that black-eyed Susanne is a poisonous plant. Good to know that there are no toxic substances in the climbing plant. Therefore, the decorative climbing plant is recommended for gardens where children and pets cavort.
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Black-eyed susanne does not bloom
If the black-eyed Susanne takes care of itself and misses the flowers, the first step is to put the site conditions to the test. Only in a sun-drenched place, protected from cold winds and pounding rain, does the climbing plant unfold its flowers. If the location meets the most important requirements, take a close look at the maintenance. If a Thunbergia suffers from drought stress or a lack of nutrients, it will indignantly refuse to flower. Therefore, water regularly and fertilize with compost or a mineral preparation from May to October.
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Yellow leaves
Yellow leaves on a black-eyed Susan indicate the following causes and can be remedied in this way:
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How can I prefer black-eyed Susanne?
By sowing, you prefer the black-eyed Susanne behind glass from February. In this way, the climbing plant starts in May with a vital growth advantage in a summer season rich in flowers. Soak the spherical seeds in lukewarm chamomile tea for 4-6 hours to increase their germination rate. Then follow these steps:
The first sprouts will sprout after 2-3 weeks in a semi-shady window seat or in a heated greenhouse at a constant temperature of 20-23 degrees Celsius. The cover has now done its job and is removed. Keep your youngsters constantly slightly moist while they diligently develop their own root system. By mid-May, the tiny plants have grown into strong young plants and are planted out.
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