Harvesting Butterfly Pea Flowers for the Kitchen
Learn when and how to harvest butterfly pea flowers (Clitoria ternatea) for culinary use, from picking fresh blooms to drying them for teas and color-changing dishes.
Contents
- When to Harvest Butterfly Pea Flowers
- How to Pick Butterfly Pea Flowers
- Step-by-Step Harvesting
- Drying Butterfly Pea Flowers
- Using Harvested Butterfly Pea Flowers in the Kitchen
- Simple Ways to Use Them
- Butterfly Pea Flowers vs. Other Edible Flowers
- Storing Fresh Butterfly Pea Flowers
- Tips for Growing Your Own
Butterfly pea flowers are best harvested in the morning, after the dew has dried but before the sun gets too hot. Pick fully open, vibrant blue blossoms that feel slightly papery to the touch. For the freshest flavor and most intense color, use them the same day. If you want to store them, dry the flowers in a cool, airy place away from direct sunlight until crisp.
When to Harvest Butterfly Pea Flowers
The ideal butterfly pea flower harvest time is mid-morning. By then, the petals have unfolded completely and their natural pigments are at their peak. Avoid picking flowers that are still tightly closed or starting to wilt; closed buds won't have developed their full color, and wilted flowers can taste slightly grassy. On a healthy vine, you can pick every day or every other day during the flowering season, which typically runs from late spring through early autumn in warm climates.
How to Pick Butterfly Pea Flowers
Butterfly pea flower harvesting is simple and requires no special tools. Pinch the stem just behind the flower head with your fingernails or use small scissors. Leave a short stem attached—it makes handling easier and helps the flower dry evenly. Collect the flowers in a shallow basket or tray rather than a deep container, so they don't get crushed. The petals are delicate; handle them as little as possible.
Step-by-Step Harvesting
- Choose a dry morning after the dew has evaporated.
- Look for fully open flowers with deep blue or purple petals.
- Snip or pinch the flower off, leaving about a quarter inch of stem.
- Place flowers in a single layer in a basket or on a tray.
- Use immediately or move to a drying rack within an hour.
Drying Butterfly Pea Flowers
Drying flowers is the easiest way to preserve butterfly pea blossoms for later use. Spread the fresh flowers on a mesh screen or a clean tea towel in a single layer. Place them in a warm, dry spot with good air circulation, out of direct sunlight—sunlight can bleach the color. Depending on humidity, they'll become crisp and brittle in 2 to 5 days. Once fully dry, store them in an airtight glass jar away from light. Dried butterfly pea flowers keep their blue pigment for up to a year and can be used just like fresh ones in teas and infusions.
Using Harvested Butterfly Pea Flowers in the Kitchen
Fresh butterfly pea flowers have a very mild, slightly earthy flavor—almost like a faint green bean. Their real magic is visual. When steeped in hot water, they release a brilliant cobalt-blue liquid. Add a few drops of lemon or lime juice, and the color shifts to vivid purple or magenta. This color change makes them a favorite for show-stopping drinks and desserts.
Simple Ways to Use Them
- Blue tea: Steep 5–6 fresh or dried flowers in a cup of hot water for 3–5 minutes. Strain and sweeten with honey or sugar. Serve hot or over ice.
- Color-changing lemonade: Make a strong blue tea, chill it, then pour over ice and add lemonade. Watch the blue turn pink as you stir.
- Rice tint: Steep a handful of flowers in the cooking water for jasmine rice. The rice will take on a pale blue hue; add a squeeze of lime after cooking for a lavender tone.
Butterfly Pea Flowers vs. Other Edible Flowers
Butterfly pea flowers (Clitoria ternatea) are often confused with other blue edible flowers like borage or cornflowers. Here's how they compare:
| Flower | Color | Flavor | Best Culinary Use |
|---|---|---|---|
| Butterfly pea (Clitoria ternatea) | Vivid blue, sometimes with yellow center | Mild, earthy, faintly vegetal | Color-changing teas, rice, desserts |
| Borage | Star-shaped, true blue | Cucumber-like, refreshing | Salads, cocktails, frozen in ice cubes |
| Cornflower | Deep blue, fringed petals | Slightly spicy, clove-like | Garnish for savory dishes |
If you can't find butterfly pea flowers, borage or cornflowers can add blue color, but they won't change color with acid. For a color-changing effect, butterfly pea is unique; there is no common substitute.
Storing Fresh Butterfly Pea Flowers
If you won't use the flowers right away, refrigerate them. Lay them on a damp paper towel inside a covered container. They'll stay fresh for 2–3 days but may lose some vibrancy. For best results, dry them as soon as possible after picking.
Tips for Growing Your Own
Butterfly pea is a fast-growing vine that thrives in full sun and well-drained soil. It's an easy addition to a flower garden and will reward you with dozens of blooms each week during peak season. Regular picking encourages more flowers, so harvest often.