Blue Nasturtium Flower: Myth or Reality? Everything You Need to Know About Nasturtiums
What Is Nasturtium? A Complete Introduction
Nasturtium plants (botanically known as Tropaeolum) are among the most versatile and visually striking flowering plants cultivated in gardens worldwide. Native to South and Central America, these plants have gained immense popularity due to their vibrant flowers, edible leaves, and easy-growing nature.
We recognise nasturtiums as fast-growing annuals that thrive in a variety of climates, making them ideal for both beginner and experienced gardeners. Their round leaves and bright blooms create a cascading or bushy effect, depending on the variety, adding a dramatic flair to any garden space.
Blue Nasturtium Flower: Reality or Myth?
The concept of a blue nasturtium flower has fascinated gardeners and plant enthusiasts for years. However, we clarify with certainty: true blue nasturtium flowers do not exist naturally.
Nasturtiums are genetically inclined to produce colours within the warm spectrum, including:
Bright red
Golden yellow
Orange
Peach
Cream
Pink shades
Any claims of blue nasturtiums are typically the result of:
Digitally altered images
Artificial dyeing techniques
Mislabeling by sellers
We emphasise that while plant breeding has achieved remarkable colour variations, a genuine blue pigment in nasturtiums remains scientifically unachieved.
Types of Nasturtium Plants
We categorise garden nasturtium varieties into two primary types:
1. Trailing Nasturtiums
These varieties are ideal for hanging baskets, fences, and ground cover. Their vines can spread up to several feet, creating a lush, flowing effect.
2. Bush Nasturtiums
Compact and tidy, bush types are perfect for container gardening and borders, offering dense clusters of blooms.
Nasturtium Flowers: Colours and Visual Appeal
Nasturtium flowers are known for their rich, saturated hues and unique funnel shape. Popular shades include:
Nasturtium red – Bold and striking
Nasturtium pink – Soft and romantic
Golden yellow with contrasting centres
Flame-like orange gradients
The blooms often feature delicate veining, enhancing their ornamental value.
Are Nasturtium Flowers Edible?
Yes, nasturtium flowers are edible, and they are widely used in culinary applications. We highlight their unique characteristics:
Peppery flavour, similar to arugula
Used in salads, garnishes, and herbal dishes
Leaves and seeds are also edible.
Their bright colours make them a favourite for decorative plating and gourmet presentation.
Nasturtium Seeds: Everything You Should Know
What Do Nasturtium Seeds Look Like?
Nasturtium seeds are:
Large and wrinkled
Pale beige to light brown
Resembling small clusters or dried peas
How to Grow Nasturtium from Seed
We recommend the following steps for optimal growth:
Choose well-drained soil with low fertility.
Sow seeds directly in the soil at a depth of 2–3 cm.
Maintain moderate watering
Ensure exposure to full sunlight.
Germination typically occurs within 7–14 days.
How to Nick Nasturtium Seeds
To improve germination, we advise:
Lightly scratching the seed coat (scarification)
Soaking seeds in water overnight
This softens the outer layer and speeds up sprouting.
When to Plant Nasturtium Seeds
Timing is crucial:
In India, sow seeds between October and February in mild climates
In cooler regions, plant after the last frost
For the UK, sow in spring (March–May)
How to Store Nasturtium Seeds
Proper storage ensures viability:
Keep in a cool, dry place.
Use airtight containers
Avoid moisture exposure
Stored correctly, seeds remain viable for 2–3 years.
Nasturtium Benefits: Why Grow Them?
We strongly advocate growing nasturtiums due to their multiple benefits:
1. Natural Pest Repellent
Nasturtiums act as a trap crop, attracting aphids and protecting other plants.
2. Soil Health Improvement
They help enhance soil conditions by acting as a companion plant.
3. Nutritional Value
Rich in:
Vitamin C
Antioxidants
Essential minerals
4. Low Maintenance
They thrive in poor soil and require minimal care, making them ideal for organic gardening.
Are Nasturtiums Invasive?
We note that nasturtiums are not considered invasive in most regions, but they can spread rapidly under favourable conditions.
Their fast growth can sometimes lead to self-seeding, giving the impression of invasiveness. However, they are easy to control and manage.
Nasturtium Native Habitat
Nasturtiums are native to:
Andean regions of South America
Areas with cool nights and moderate sunlight
Understanding their origin helps us replicate ideal growing conditions.
Nasturtium Pronunciation Guide
The correct pronunciation is:
/nəˈstɜːrʃəm/ (nuh-STUR-shum)
This often confuses beginners, but mastering it enhances communication in gardening communities.
Where to Buy Nasturtium Seeds
Nasturtium seeds are widely available:
Garden centers
Online marketplaces
Retail chains such as Lowe’s (availability varies by region)
We recommend choosing organic, untreated seeds for the best results.
How to Care for Garden Nasturtium
Sunlight Requirements
Full sun ensures maximum flowering, though partial shade is tolerated.
Watering Needs
Moderate watering
Avoid waterlogging
Soil Conditions
Poor to average soil preferred
Excess fertiliser reduces flowering.
Pruning
Deadheading encourages continuous blooms.
Common Problems and Solutions
Yellow Leaves
Cause: Overwatering
Solution: Improve drainage
Few Flowers
Cause: Rich soil
Solution: Reduce fertilisation
Pest Issues
Though pest-resistant, they may attract aphids. Use natural remedies like neem oil.
Conclusion: The Truth About Blue Nasturtiums
We conclude definitively:
Blue nasturtium flowers are a myth, not a naturally occurring reality.
However, the absence of blue does not diminish the plant’s beauty or value. With their brilliant colours, edible properties, and easy cultivation, nasturtiums remain one of the most rewarding plants to grow in any garden.
By mastering the techniques of growing, harvesting, and maintaining nasturtium plants, we unlock a vibrant, functional, and sustainable addition to our gardening experience.
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