Nasturtium ‘Black Velvet’: How to Grow, Care for, and Use This Dramatic Edible Flower
Nasturtium ‘Black Velvet’ is one of the most striking nasturtium varieties available, prized for its deep, dark, velvety flowers that appear almost black in certain light. Set against fresh green foliage, the rich burgundy-black blooms create dramatic contrast in borders, containers, and edible gardens. Like all nasturtiums, Black Velvet is easy to grow, fast to establish, and completely edible, making it both ornamental and practical.
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March is when the growing season truly begins. Seeds are being sown daily, beds are prepared and late frosts are still possible — these essentials help produce strong plants and a successful start.
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Nasturtiums are cheerful, edible flowers with bright colours and peppery taste — easy to grow in beds, containers, and hanging baskets.
• Nasturtium Seed Collection (Mixed Colours)
A mix of vibrant nasturtium seeds — perfect for sowing directly outdoors or under cover early in the season.
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Light, nutrient-balanced compost ideal for nurturing nasturtium roots and encouraging healthy growth.
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This guide covers everything you need to know about nasturtium Black Velvet, including how it grows, where to plant it, how to care for it, and how to use it in the kitchen.
What Is Nasturtium Black Velvet?
Nasturtium Black Velvet is an annual flowering plant grown from seed. It belongs to the same family as traditional nasturtiums but is selected specifically for its unusually dark flowers, which range from deep maroon to near-black depending on sunlight and temperature.
The plant has the classic nasturtium look:
- Rounded, shield-shaped leaves
- Soft, trailing or mounding growth
- Funnel-shaped flowers
It is commonly grown as a compact or semi-trailing variety, making it suitable for pots, borders, and raised beds.
Why Grow Nasturtium Black Velvet?
Black Velvet stands out for several reasons:
- Rare dark flower colour
- Easy to grow from seed
- Long flowering period
- Fully edible plant
- Excellent pollinator appeal
- Low maintenance
It works particularly well in modern planting schemes, gothic-style gardens, and mixed edible borders.
Flower Colour and Appearance
The flowers of Black Velvet are its main attraction. They are:
- Deep burgundy to almost black
- Velvety in texture
- Highly visible against green foliage
The colour is richest when grown in full sun and slightly poorer soil. Cooler nights can also intensify the dark tones.
Growth Habit and Size
Nasturtium Black Velvet typically grows:
- Height: 30–40cm
- Spread: 30–60cm
Its growth habit is compact to lightly trailing, making it ideal for:
- Pots and containers
- Front of borders
- Raised beds
- Hanging baskets
Is Nasturtium Black Velvet Edible?
Yes. Like all nasturtiums, Black Velvet is completely edible.
- Leaves: Peppery and fresh, similar to watercress
- Flowers: Mild, slightly sweet, and decorative
- Seeds: Can be pickled and used like capers
The dark flowers are especially popular as edible garnishes for salads, cheeses, and summer dishes.
What Does Nasturtium Black Velvet Taste Like?
The flavour is typical of nasturtiums:
- Leaves have a strong peppery kick
- Flowers are milder and slightly sweet
- Young growth is less intense
The taste comes from natural compounds also found in mustard and rocket.
When to Sow Nasturtium Black Velvet Seeds
Nasturtium Black Velvet is frost tender and should only be sown once the risk of frost has passed.
- Sow indoors: March to April
- Sow outdoors: April to May
Seeds germinate quickly, usually within 7–14 days.
How to Sow Nasturtium Black Velvet
Indoor Sowing
- Sow seeds individually into small pots
- Push seeds about 2cm deep into compost
- Water lightly
- Place in a bright, frost-free spot
Harden off seedlings before planting outside.
Outdoor Sowing
- Sow directly into warm soil
- Space seeds around 25–30cm apart
- Protect young seedlings from slugs
Soaking seeds overnight can help speed up germination.
Where to Grow Nasturtium Black Velvet
Black Velvet grows best in:
- Full sun
- Free-draining soil
- Poor to moderately fertile ground
Avoid rich soil, as this encourages leaf growth rather than flowers.
Ideal planting locations include:
- Containers and pots
- Border edges
- Raised beds
- Hanging baskets
Growing Nasturtium Black Velvet in Pots
This variety is particularly well suited to containers.
For best results:
- Use pots with good drainage
- Avoid high-nutrient compost
- Water during prolonged dry spells
Allow trailing stems to spill over the edges for maximum visual impact.
Watering and Feeding
Nasturtium Black Velvet is low maintenance.
- Water regularly while plants establish
- Once established, water sparingly
- Do not feed with fertiliser
Too much water or feed reduces flowering intensity and colour depth.
Does Nasturtium Black Velvet Need Support?
No. This variety does not require support. Its growth habit is compact and lightly trailing, making it self-supporting in most situations.
Flowering Period
Nasturtium Black Velvet flowers for a long period:
- From June or July
- Through to October or first frost
Regular deadheading encourages continuous flowering.
Deadheading and Maintenance
To keep plants flowering:
- Remove faded blooms regularly
- Harvest leaves and flowers often
- Avoid letting seeds form too early
This keeps the plant productive and tidy.
Common Problems With Nasturtium Black Velvet
Nasturtiums are generally problem-free.
Lots of Leaves, Few Flowers
- Soil too rich
- Too much shade
Pale or Weak Colour
- Lack of sun
- Excess feeding
Aphids
Nasturtiums attract aphids but can act as a trap plant, protecting nearby crops.
Is Nasturtium Black Velvet Good for Pollinators?
Yes. Despite its dark colour, Black Velvet attracts:
- Bees
- Hoverflies
- Other beneficial insects
It supports biodiversity in ornamental and vegetable gardens alike.
Does Nasturtium Black Velvet Self-Seed?
Yes. If seed pods are left on the plant:
- Seeds drop naturally
- New plants may appear the following year
Self-seeded plants often grow strongly but may not always come true to colour.
Using Nasturtium Black Velvet in Garden Design
Black Velvet is excellent for contrast planting.
It pairs well with:
- Silver-leaved plants
- Pale or white flowers
- Grasses and structural foliage
Its dark flowers create depth and drama in mixed planting schemes.
Is Nasturtium Black Velvet Suitable for Beginners?
Absolutely. It is ideal for beginners because it:
- Grows quickly from seed
- Needs very little care
- Thrives in poor soil
- Produces flowers for months
It’s also a great choice for children and edible gardening projects.
Final Thoughts on Nasturtium Black Velvet
Nasturtium Black Velvet is a standout variety that combines dramatic colour with easy care and edible value. Whether grown in pots, borders, or raised beds, it brings months of interest with minimal effort.
If you’re looking for a unique nasturtium that delivers both beauty and usefulness, Black Velvet is a superb choice for any garden.