How to Grow Whirlybird Scarlet
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Whirlybird Scarlet
Tropaeolum majus 'Whirlybird Scarlet'
flowerWhirlybird Scarlet is a compact, bushy nasturtium variety known for its vibrant scarlet-red flowers with distinctive ruffled, semi-double petals that resemble spinning pinwheels. Unlike climbing nasturtiums, this variety grows as a dwarf mound, making it ideal for containers, borders, and edging. The plant produces both ornamental flowers and edible foliage, offering both beauty and culinary value.
When should you plant Whirlybird Scarlet in your zone?
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Example Whirlybird Scarlet timeline · Pittsburgh, PA (Zone 6b)
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Plant Whirlybird Scarlet
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Whirlybird Scarlet blooms
Around May 22≈ 35 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Whirlybird Scarlet dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-11; grown as an annual in cooler climates, perennial in warmer zones
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Get my Whirlybird Scarlet timeline →Growth Stages
Seedling
2-3 weeksSmall plants with two cotyledons and emerging true leaves; tender and vulnerable
Keep soil moist but not soggy. Provide bright, indirect light. Harden off before transplanting outdoors. Protect from frost.
Vegetative Growth
3-4 weeksPlant develops bushy mound form with rounded, blue-green foliage; stems elongate and branch
Water regularly; pinch back growth tips to encourage bushiness if desired. Avoid high-nitrogen fertilizers. Plant can be susceptible to aphids during this phase.
Budding & Early Flowering
2-3 weeksFlower buds appear at branch tips; first blooms emerge with characteristic ruffled, semi-double scarlet petals
Begin deadheading spent flowers to encourage continuous blooming. Maintain consistent moisture. Provide balanced fertilizer if desired.
Peak Flowering
6-10 weeksPlant covered with abundant scarlet blooms; foliage remains vibrant green; flowers continuously produced
Deadhead regularly to prolong flowering. Water during dry spells. Monitor for pests. Enjoy harvesting flowers and leaves for culinary use.
Decline (End of Season)
Until first hard frostFlowers become less frequent; foliage may yellow or thin; plant prepares for dormancy or end of life cycle
Allow some flowers to set seed if desired for self-seeding. Reduce watering. Enjoy final harvests before frost kills annual plants.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use insecticidal soap; plant with garlic or chives nearby; encourage natural predators like ladybugs
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Use yellow sticky traps; spray with neem oil; improve air circulation; remove heavily infested leaves
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Increase humidity by misting; use insecticidal soap; spray with neem oil; remove affected foliage
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Handpick when possible; use Bacillus thuringiensis (Bt); monitor for damage on foliage and flowers
Uses
Edible Flowers & Spicy Greens
CulinaryBoth the flowers and leaves are entirely edible with a peppery, slightly spicy flavor reminiscent of watercress. The flowers make stunning garnishes for salads, soups, and desserts, while young leaves can be added to salads or used in place of peppery greens. [source]
Nasturtium Capers
CulinaryImmature seed pods can be pickled to create a delicious caper substitute with a tangy, slightly sweet flavor. Harvest pods within 2-3 days of flowering for the best texture and taste. [source]
Traditional Herbal Support
MedicinalNasturtium has been used in traditional herbalism for its potential antimicrobial and antioxidant properties. The plant contains glucosinolates and other compounds studied for various health applications. [source]
Natural Pest Deterrent
HouseholdWhirlybird Scarlet acts as a trap crop and companion plant, attracting aphids and other pests away from vegetable gardens. The bright flowers also help repel whiteflies and other garden pests when interplanted with crops. [source]
Cut Flowers & Floral Arrangements
CraftThe vibrant scarlet blooms with their distinctive ruffled form make excellent, long-lasting cut flowers for small bouquets and floral designs. The unique double-flower form adds texture and visual interest to arrangements. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest flowers in the morning after dew dries; they will remain fresh longer. Pinch off individual blooms or small sprays. Edible flowers have a slightly spicy, peppery flavor. Harvest young leaves anytime for fresh use; they add a peppery zest to salads. Collect immature seed pods (capers) for pickling within 2-3 days of flower drop. Plants produce best when harvested regularly.
Fun Facts
- 🌱 Whirlybird Scarlet flowers are named for their resemblance to spinning helicopter blades or pinwheels, a trademark characteristic of the Whirlybird series that also comes in other colors.
- 🌱 Nasturtiums are native to South America and were brought to Europe by Spanish conquistadors in the 16th century. The name 'nasturtium' comes from the Latin words 'nasus' (nose) and 'tortus' (twisted), referring to the peppery smell and spicy taste.
- 🌱 The plant is highly attractive to hoverflies and other beneficial insects, making it an excellent addition to pollinator gardens. These insects help control pest populations naturally.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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