How to Grow Robustissima Windflower
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Robustissima Windflower
Anemone × hybrida 'Robustissima'
flowerRobustissima Windflower is a hardy perennial cultivar of Japanese anemone known for its vigorous growth and abundance of single pink flowers on tall stems. It blooms in late summer and fall, providing essential nectar for pollinators when many other flowers are fading. This cultivar is particularly robust and disease-resistant, making it ideal for mixed borders and naturalized settings.
When should you plant Robustissima Windflower in your zone?
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Example Robustissima Windflower timeline · Pittsburgh, PA (Zone 6b)
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Plant Robustissima Windflower
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 Robustissima Windflower blooms
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Robustissima Windflower dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8; hardy and reliable across a wide range of climates
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Dormancy/Spring Emergence
4-6 weeksPlant emerges slowly in spring with delicate green shoots appearing from soil level
Remove winter mulch gradually as soil warms. Divide established plants in early spring if needed. Ensure good drainage to prevent rot.
Vegetative Growth
6-8 weeksPlant produces numerous basal leaves (lobed, dark green) and strong upright stems with branching side shoots
Water regularly and maintain consistent moisture. Apply balanced fertilizer monthly. Remove any diseased foliage promptly.
Bud Formation
3-4 weeksTerminal buds develop at stem tips, gradually swelling and showing color (pink)
Maintain steady watering and avoid stress. Support tall stems with stakes if needed, especially in windy locations.
Flowering
8-12 weeks (late August through October)Open, semi-double pink flowers with prominent yellow stamens bloom profusely on branching stems; flowers appear continuously
Deadhead spent flowers to encourage continued blooming. Provide afternoon shade in hot climates to preserve flower color and longevity.
Seed Maturation and Dormancy
4-6 weeks into dormancyFlowers fade and develop seed heads with silky, hair-like seeds for wind dispersal; foliage begins to decline
Leave seed heads for winter interest and self-seeding if desired. Cut back dead foliage in late fall or early spring. Apply 2-3 inches of mulch for winter protection in colder zones.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use insecticidal soap or neem oil for severe infestations
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Monitor undersides of leaves; use yellow sticky traps; spray with neem oil if needed
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Increase humidity; spray foliage with water; use miticide if severe
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Hand-pick in early morning; use traps away from garden; apply neem oil to reduce populations
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Remove debris and hiding spots; use copper barriers; apply diatomaceous earth; introduce beneficial predators
Uses
Not Edible
CulinaryWindflowers are ornamental plants and are not suitable for consumption by humans or animals. The plant contains potentially toxic compounds and should not be ingested. [source]
Cut Flower Arrangements
CraftThe tall stems and abundant blooms make Robustissima Windflower excellent for fresh flower arrangements, late-season bouquets, and dried flower work. The long vase life and delicate appearance add elegance to any floral design. [source]
Pollinator Support
WildlifeRobustissima Windflower provides essential late-season nectar and pollen for bees, butterflies, and other pollinators when food sources are scarce. The prominent stamens and open flower structure make nectar highly accessible. [source]
Garden Structure and Interest
HouseholdThis cultivar provides height, color, and seasonal structure to mixed borders and perennial gardens. Its vigorous habit and late blooming period fill gaps when spring bulbs have faded and summer annuals decline. [source]
Traditional Use Only
MedicinalAnemones have been used historically in traditional medicine, but Robustissima Windflower should not be used medicinally without expert guidance due to potential toxicity. Modern herbalism generally avoids this genus. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Robustissima Windflower is grown for ornamental purposes, not harvested for consumption. Cut flowers for arrangements when fully open, preferably in early morning. Remove lower foliage from stems before placing in water. Blooms last 1-2 weeks in the vase. Allow some flowers to remain on plant for seed production and wildlife benefit.
Fun Facts
- 🌱 Robustissima Windflower is a hybrid derived from Anemone hupehensis, an Asian species, crossed with other Japanese anemone types, combining the best traits of multiple parent species for superior vigor and disease resistance.
- 🌱 The common name 'Windflower' comes from the fact that these delicate flowers seem to dance and wave in even the slightest breeze, creating a graceful, ethereal effect in the garden.
- 🌱 Unlike many perennials that fade after 3-5 years, Robustissima is exceptionally long-lived and can thrive in the same location for 15-20+ years without division, becoming more established and vigorous with age.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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