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Garden Nasturtium (Tropaeolum hybrids)

A very decorative, uncomplicated plant that also thrives in semi-shade locations and in less optimal soil. It is often used for fences or in pot or bucket as a balcony plant. The base area of a facade can be enhanced with nasturtium, especially under climbing plants that tend to lose their leaves near their base. It is also a good choice for interior greening!

(lat.: tropaeolum majus)

Nasturtium (tropaeolum hybrid)

Requirements / Provenance

This easy to care for climbing plant doesn't have any special needs regarding location but in a sunny and sheltered position there will be more flowers. The soil should be permeable, rather lean and nitrogen-poor garden soils, sandy soil is also good. In the shadow and with damp soil the plant will form more leaves and less flowers. Watering is required in hot and dry weather. Available as seeds, seed blends or pre-cultivated plants in spring.

Caracteristics and Pruning

The species in its original form comes from Colombia, Ecuador and Peru and was introduced in Europe in 1684 by the Dutchman Bewernin. The Nasturtium is an annual in Europe, sow them in the beginning of May. Soak the seeds in water overnight. The seeds can also be grown in a greenhouse in late winter or indoors in April and then planted in the second half of May. Sow 2-3 grains per planting hole, approx. 2 cm deep, at a distance of approx. 20-30 cm. When sown during summer, the nasturtium can be a beautiful indoor plant that brings color in the winter months. It can grow up to approx. 3 meters in height. Nasturtium will most likely climb a a rambler, sometimes also with leaf-stem tendrils. This is a colorful and bright plant with flower colors raning from yellow to red depending on the variety. The flowering is from June to November. The shoots, young leaves, flowers, and flower buds are all edible. Taking off withered flowers promotes new flower production. Additional measures against aphid infestation are required for indoor culture.

Growing aids on facades

The trellis should be a narrow mesh with a 20 - 30 cm wide grid, or even narrower nets. There should mainly be vertical ropes (mesh with standing rectangles instead of squares). See at the bottom of the page to see suitable rope trellises. The 5050 design is a solid choice in conjunction with stakes. Choose the Simple or Light version, the Medium design is also a solid choice. If the trellis does not reach the ground, the young shoots are led to it with a bamboo stake from the ground. Binding material might be necessary.

Cable systems?

Click on the image to see wich designs are adapted as a growing aid for mandevillas.

Garden nasturtium on a garden shed
Nasturtium on a garden shed
Garden nasturtium on a fence
Wall with garden nasturtium
Troaeolum on a hedge
Balcony greening with Tropaeolum

Suitable wire rope trellies for a Nasturtium

Please click on the graphics to see a detailed view of each design!

= suitable       = partly suitable     = not suitable