How to Grow Hino Purple
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Hino Purple
Ipomoea nil
vineHino Purple is a stunning Japanese morning glory variety featuring deep purple, nearly black flowers with distinctive white throat markings and compact growth habit. This ornamental climbing vine is prized for its dramatic color and prolific blooming throughout the growing season. It's a warm-season annual that produces heart-shaped foliage and funnel-shaped flowers that open in early morning.
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Example Hino Purple timeline · Pittsburgh, PA (Zone 6b)
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Plant Hino Purple
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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Harvest Hino Purple
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Hino Purple dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 6-10 as a summer annual; can be grown in cooler zones as a tender annual
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Seedling
2-3 weeksSmall green cotyledons emerge; true leaves develop with heart-shaped appearance. Plant is fragile and tender.
Keep soil warm (70-75°F) and moist. Provide bright indirect light. Thin seedlings to proper spacing. Harden off before transplanting.
Vegetative Growth
4-6 weeksVine rapidly produces heart-shaped leaves and elongates. Plant develops climbing stems and tendrils ready to climb support structures.
Provide sturdy trellis, stakes, or support structure. Water consistently. Avoid over-fertilizing nitrogen, which promotes foliage over flowers. Pinch tips early to encourage branching.
Flowering Initiation
2-3 weeksFirst flower buds form at leaf axils. Plant begins producing elongated buds with purple coloring visible.
Reduce nitrogen fertilizer; apply balanced or phosphorus-rich fertilizer. Maintain consistent watering. Ensure adequate sunlight for bud development.
Flowering & Blooming
6-10 weeksLarge funnel-shaped flowers with deep purple petals and distinctive white throats open in early morning hours, closing by afternoon. Flowers appear continuously throughout the season.
Deadhead spent flowers regularly to encourage continued blooming. Maintain consistent moisture. Feed with balanced fertilizer every 2-3 weeks. Provide support as vine grows heavier.
Seed Production
Variable, until first frostAs season progresses and temperatures cool, plant may produce round seed pods containing hard, dark seeds.
If collecting seeds, allow pods to mature and dry on vine before harvesting. For continuous blooms, remove seed pods. Frost will kill the entire plant at season's end.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with neem oil or insecticidal soap; increase air circulation; use yellow sticky traps
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Hand-pick in early morning; use neem oil; apply kaolin clay spray as preventive
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Spray foliage with water to increase humidity; apply neem oil or miticide; ensure adequate watering
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Spray with insecticidal soap or neem oil; encourage beneficial insects; use reflective mulches
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Remove by hand; use copper tape barriers; apply diatomaceous earth around base
Uses
Edible Flowers
CulinaryWhile primarily ornamental, Ipomoea nil flowers are technically edible and can garnish salads or beverages, offering a mild, slightly sweet flavor. Use only if grown without chemical pesticides. [source]
Traditional Medicine
MedicinalIn Asian traditional medicine, some Ipomoea species have been used in herbal preparations. Seeds of certain morning glory species contain compounds studied for various health applications, though Hino Purple is not commonly used medicinally. [source]
Vertical Gardening & Screening
HouseholdThe vigorous vining growth makes Hino Purple ideal for creating quick living screens, covering arbors, pergolas, and trellises, providing beautiful purple flowers while adding privacy and vertical interest to gardens. [source]
Fresh Cut Flowers & Arrangements
CraftAlthough morning glory flowers close by afternoon, fresh-picked blooms make striking additions to morning flower arrangements and can be enjoyed while open. The deep purple color creates dramatic floral designs. [source]
Pollinator Support
WildlifeHino Purple flowers attract hummingbirds, bees, and other pollinators with their abundant nectar and pollen, providing an important food source throughout the blooming season. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Hino Purple is grown for ornamental flowers rather than harvest. Enjoy blooms in morning hours when fully open. Deadhead spent flowers daily to promote continuous blooming throughout the season. To collect seeds, allow pods to fully mature and dry on the vine in late summer/fall, then harvest before frost and store in cool, dry conditions.
Fun Facts
- 🌱 The name 'Hino Purple' comes from the Japanese word 'hino,' which refers to the deep crimson or dark red coloring characteristic of the variety
- 🌱 Morning glory flowers have a fascinating daily rhythm—they open in early morning and close by afternoon, a behavior driven by internal circadian rhythms even under constant light
- 🌱 Seeds of Ipomoea nil have been used in Japanese and Asian art for centuries, and the plant holds cultural significance in Japanese gardens and morning flower-viewing traditions
Gardening Terms
New to gardening? Learn about terms used in this guide:
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