Nasturtium — edible flower
Edible flower

Nasturtium

Tropaeolum majus

Pronounced peppery with a hint of mustard - similar to watercress or radish, but softer and with a floral sweetness. Nectar with a honey-sweet taste accumulates in the spur (long tail of the flower) - the complete opposite of the petals. The leaves are sharper than the flower, the seeds are the most intense.

pepper mustard
Intensity
55%

Taste profile Peppery, mustardy, with sweet nectar in the spur
Role in dish Flavor ingredient and decoration at the same time
Edible parts Whole flower / petals / buds / leaves / seeds
Season July–September
Freshness 2–3 days
Price tier Budget

When and how available

Seasonality
the moonAccessibility
January — April❌ Off season (open soil)
May — June✅ The beginning of the season, the first flowers
July — September✅ Peak - abundant flowering, best quality
October✅ Completion of the season, before the first frost
November — December❌ Not the season

City farms with controlled environments can supply nasturtiums year round regardless of the season.

Supply forms
FormFeatures of use
freshThe main form for restaurants is the maximum color and taste, the term is 2–3 days
dryFor the decoration of desserts and pastries, the taste is partially lost
KandovanDesserts, cakes - keeps its shape and color for weeks
Frozen in iceCocktails, lemonades - a spectacular presentation
Marinated (buds)A substitute for capers in savory dishes

Taste, aroma & texture

Taste
Peppery, mustardy, with sweet nectar in the spur

Pronounced peppery with a hint of mustard - similar to watercress or radish, but softer and with a floral sweetness. Nectar with a honey-sweet taste accumulates in the spur (long tail of the flower) - the complete opposite of the petals. The leaves are sharper than the flower, the seeds are the most intense.

Aroma
Flower aroma

Thin, floral-mustard. Not intense - it is felt on direct contact, and not from afar. Does not interfere with other ingredients of the dish.

Texture
Mouthfeel

Petals are thin, velvety, soft. They melt in your mouth almost immediately. The central part of the flower is denser. The leaves are crisp, juicy — more like greens than flowers.

Safety & edibility

Edible flowers are not the same as florist flowers. Only flowers grown specifically for food use without synthetic pesticides are suitable.

Which parts are edible
  • ✅ Petals and the whole flower
  • ✅ Leaves (peppery taste, like greens)
  • ✅ Buds (pickled like capers)
  • ✅ Young seeds (pickled or eaten fresh)
  • ❌ Ripe hard seeds are tasteless, they are not used

Are all varieties edible: Yes - all varieties Tropaeolum majus edible Not to be confused with Nasturtium officinale (watercress) is another plant.

Usage notes
  • Buds contain an increased amount of oxalic acid - people with sensitive kidneys should use it sparingly
  • Allergies to nasturtium are rare, but when using for the first time, it is better to start with a small amount
  • Pregnant women are recommended to use in moderation

Heat treatment: Not recommended — the petals lose their color, texture and most of their flavor when heated. Nasturtium is added to the dish at the last moment or served raw.

This information is general in nature and is not medical advice. Sources: USDA FoodData Central, EFSA.

Culinary use

Nasturtium is a rare case when a flower is a full-fledged ingredient and not just a decoration. Pepper flavor works actively in the dish: it replaces radishes, watercress, and mustard. At the same time, it is one of the brightest color accents among edible flowers.

Candy making

the flowers are covered with egg white and sugar, dried. They keep their shape and color for weeks and are used to decorate desserts and cakes.

Freezing in ice

the flower is placed in an ice cube tray, filled with water and frozen. Effective serving of cocktails and lemonades.

Pickling buds

buds collected before opening are marinated in vinegar and salt. They get a substitute for capers with a brighter color and a similar taste.

Insistence

the petals are infused in olive oil, vinegar or alcohol (vodka, gin). The oil acquires a yellow-orange color and a light peppery aroma.

Oil with nasturtium

grind the petals and mix them in the butter. Gives color and taste, is used for finishing dishes and as a spread.

Stuffing

the whole flower is filled with cream cheese with greens or soft pate; served as a canape. The easiest way to serve nasturtium is as an independent snack.

What NOT to do
  • Do not add to hot dishes - the petals instantly lose their color and turn into a shapeless mass; nasturtium only for cold dishes or finishing
  • Do not store cut flowers for more than 2-3 days, even in the refrigerator - they quickly wither; order for a specific serving
  • Do not wash under a strong stream - carefully immerse in cold water and dry immediately; the pressure damages the thin petals
  • Do not use flowers from a flower shop or market - they are treated with chemicals and are not suitable for consumption

Perfect pairings

With fish and seafood

salmon, tuna, scallops, herring—the peppery bite of nasturtium works as a classic contrast to fatty and salty. Replaces capers or watercress in serving.

With soft cheeses

ricotta, cream cheese, burrata, goat cheese — the floral sweetness and peppery finish balance the creamy base.

With eggs

poached eggs, omelet, egg salad — nasturtium here is both a decoration and a taste accent at the same time.

With salad greens

arugula, spinach, watercress — strengthens the pepper line, adds color and visual complexity without unnecessary ingredients.

With citrus dressings

lemon vinaigrette, orange dressing - the acid emphasizes the floral aroma and softens the pepper's spiciness.

With avocado

avocado toast, guacamole, avocado salsa — the peppery bite of nasturtium perfectly contrasts with the fattiness of avocado; a classic pair of modern cuisine.

How to select & store

How to choose a fresh flower
  • Petals are elastic, without darkening and traces of wilting
  • The color is saturated and uniform
  • The center of the flower is dry, without mucus
  • Without extraneous odors
Where to buy

Where to buy is important: Buy edible flowers only from proven producers who grow them specifically for the food industry. Flowers from flower shops, supermarkets and regular markets not suitable for consumption — even if they look fresh.

Home storage

Freshness after cutting: 2–3 days

  • Fresh flowers — airtight container with a paper towel, refrigerator +4...+6°C, term 2–3 days
  • Do not wash before use - moisture accelerates wilting
  • For a restaurant: order for a specific day of service

Composition & properties

Nasturtium is one of the few edible flowers with notable vitamin C and iron content, setting it apart among ornamental flowers that typically have a modest nutrient profile.

NutrientValue (per 100 g)
Vitamin C~71 mg (≈78% of daily norm)
Vitamin A (beta-carotene)present
iron~2.9 mg
B vitamins (B1, B2, B3)are present
Flavonoids and antioxidantsare present
Potassium, Calcium, Magnesiumare present
Caloric content~28 kcal
Worth knowing

Nasturtium is a source of vitamin C — one of the few edible flowers with appreciable vitamin C content. It was traditionally used in the folk medicine of South America, where it originates from.

Contains flavonoids - plant compounds that are the subject of scientific research in the context of antioxidant properties. Suitable as part of a varied diet for those interested in plant-based nutrition.

Leaves and flowers have a similar nutrient profile, but leaves are used in larger quantities — they are more filling and closer to greens in terms of their role in the diet.

The information is general in nature and does not constitute medical advice. Composition data: USDA FoodData Central.

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