Will Nasturtiums Climb Trellis?

By   | Last Updated :   August 5, 2021 | Filed In :   Garden Landscaping Ideas

Nasturtiums love to climb trellis or any natural stem, these plants reach for the sun!

The cheerful blooms of nasturtiums thrive in the poorest of soils, winding themselves in intricate shapes around anything that will allow them to climb.

Nasturtiums are wonderful climbers which will delight your eye for months, climbing a carefully placed trellis. Let’s say a trellis is a support system and expand the uses for this useful flower because nasturtiums will climb anything in my experience.

4 ideas for trellising nasturtiums

1. Wooden trellis is ideal for pot nasturtiums

Place it on a wall behind the pot and the plant will curl itself around the trellis with ease.

nasturtiums climbing trellis on the wall

Credit: Islandashley

You can help the plant by curling it onto the trellis if it doesn’t find it to start with. This provides the nasturtium with support and you with brightly coloured flowers to enjoy all summer long.

2. Bamboo poles can work well too

If you plant nasturtiums with French beans, runner beans or any climbing beans, many pests are attracted to the gorgeous flowers. Aphids in particular will flock to nasturtiums by choice, which means they leave your bean flowers and leaves alone. A fantastic combination!

Nasturtiums are often chosen as companion plants because white fly, aphids and other pests adore them. Experienced vegetable gardeners know that the yellow and orange flowers are also really attractive to pollinators so you can help the bees as well.  The trellis for the runner beans transforms into a nasturtium climber. So the aphids devour the nasturtium, leaving the beans to grow well without too many worries.

3. Climb a vine and add colour 

If you have a vine in your garden or under cover, at times the trunks can seem brown and bare in summer so plant nasturtiums! Seeded in soil at the base of a vine, they will climb as vigorously as the grape vines, adding a fantastic dash of colour to any garden, as they grow.

They climb vines and twine around it beautifully adding a decorative look to the vine as it grows. Colours can vary from yellow to lemon yellow to bright orange and their cheerful tubular shapes can be enjoyed until the first frosts.

Nasturtiums climbing vines

Credit: Siena Scarff

Like the vine pictured, they do not need really nutritious soil. In fact, if the soil is too full of nutrients, the nasturtium plant tends to grow expansive foliage rather than blooms. The heart shaped leaves are edible in salads with a spicy tang to taste as are the flowers. Decide if you want to encourage flowers or foliage though and bear this in mind when choosing the soil.

4. Cover up areas with nasturtiums

Use a support system like the edges of your composting area as a trellis, and you can disguise the area beautifully by the climbing stems of nasturtiums. They last the whole summer even until the misty days of November, providing bright colour, pollen and salad leaves in the autumn at a time when very little else is in bloom.

Nasturtiums can cover a compost heap, fence or a garden shed to transform an area into a colourful place to enjoy.

Will Nasturtiums Climb Trellis? 1

Nasturtium flowers and leaves are edible and can be added to salads. Credit: Shutterstock

Best conditions for growing nasturtiums

Now read on for advice about the best conditions, soil and how to care for nasturtiums.

Soil: Strangely enough, nasturtiums love poor soil. If the soil is very rich the nasturtium will produce lots of foliage. So if you want colourful flowers, then ensure that the seeds are placed in soil that has not been fertilised or had beans or peas the previous season. This is because these legumes add nitrogen as they grow, which encourages plants to grow. Traditionally cabbages follow beans as they need extra nutrition right through the growing season and even before.

Temperature: These colourful blooms are good from June through to the first frosts.

Fertiliser: There is no need to add extra fertiliser for nasturtiums. In fact, if you do, you will gain a lot of leaves but very few flowers.

Water: These plants can survive a drought. If they are outdoors they hardly need to be watered all summer provided that there has been occasional rain. If you notice the plant drooping, water well or use your leftover grey water like washing up water or what’s left after washing some earthy newly picked potatoes.

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