Hybrid

Corelli™ III Light Pink

Eustoma grandiflorum

Wikimedia Commons via Eustoma russellianum

Pale, blush-pink petals with deep maroon/burgundy centers that draw you in when the porcelain-like blooms are fully open. 2-3 1/2", fully double, lightly ruffled flowers. Awarded Cut Flower of the Year by the Association of Specialty Cut Flower Growers. Group 3 (main season) for late spring, summer, and fall harvest. Color is lighter than Arena III Baby Pink and Voyage 2 Pink Improved. Lisianthus is also known as prairie gentian, Texas bluebell, and showy prairie gentian. Pelleted seeds.

Harvest

155-165d

Days to harvest

📅

Sun

Full sun to partial shade

☀️

Zones

8–10

USDA hardiness

🗺️

Height

1-3 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Transplant

Direct Sow

Start Indoors

Transplant

Direct Sow

Showing dates for Corelli™ III Light Pink in USDA Zone 7

All Zone 7 flower →

Zone Map

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Corelli™ III Light Pink · Zones 8–10

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing12-18 inches

SoilWell-draining, fertile soil amended with compost or peat moss

WaterRegular; consistent moisture without waterlogging; sensitive to irregular watering

SeasonWarm season annual

ColorPale blush-pink with deep maroon-burgundy centers

Size2-3 1/2"

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	April – May	June – July	June – August	—
Zone 4	March – April	June – June	June – July	—
Zone 5	March – April	May – June	May – July	—
Zone 6	March – April	May – June	May – July	—
Zone 7	February – March	April – May	April – June	—
Zone 8	February – March	April – May	April – June	—
Zone 9	January – February	March – April	March – May	—
Zone 10	January – January	February – March	February – April	—
Zone 1	May – June	July – August	July – September	—
Zone 2	April – May	June – July	June – August	—
Zone 11	January – January	January – February	January – March	—
Zone 12	January – January	January – February	January – March	—
Zone 13	January – January	January – February	January – March	—

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). Soil: Loam (Silt), Sand. Drainage: Good Drainage, Moist. Height: 1 ft. 0 in. - 3 ft. 0 in.. Spread: 0 ft. 9 in. - 1 ft. 0 in.. Maintenance: High. Propagation: Seed.

Harvesting

Corelli™ III Light Pink reaches harvest at 155 - 165 days from sowing per Johnny's Selected Seeds. Expect 2-3 1/2" at peak. As an annual, harvest continues until frost ends the season.

This is an ornamental variety — not grown for harvest. Enjoy in the garden landscape.

Storage & Preservation

Place freshly cut Corelli™ III Light Pink stems in cool water (65–70°F) with floral preservative in a clean vase away from ripening fruit, direct sun, and heat sources. Blooms will last 7–10 days indoors with daily water changes and stem recutting every 2–3 days. Remove any leaves that would sit below the waterline to minimize bacterial growth.

For extended preservation, press blooms between parchment paper weighted with books for 2–3 weeks to create heirloom dried flowers ideal for permanent arrangements. Alternatively, allow flowers to air-dry upside-down in loose bunches in a cool, dark, well-ventilated space for 10–14 days. Dried Corelli™ III Light Pink retains its distinctive blush-pink and maroon coloration beautifully and adds texture to winter bouquets or craft projects lasting months.

History & Origin

Corelli™ III Light Pink is an F1 hybrid developed through controlled cross-pollination. Listed in the Johnny's Selected Seeds catalog.

Origin: Nebraska south to Texas.

Advantages

+Award-winning Cut Flower of the Year designation ensures market recognition and demand
+Distinctive blush-pink with deep maroon centers creates striking visual contrast in arrangements
+Fully double, ruffled blooms provide luxurious, porcelain-like texture for premium floral designs
+Extended harvest window from late spring through fall maximizes production seasons
+Easy difficulty rating makes it accessible for both commercial and home growers

Considerations

-155-165 day maturation requires long growing season and significant resource investment
-Lisianthus generally demands consistent moisture and excellent drainage or roots rot
-Lighter color may require careful marketing to differentiate from similar pink varieties

Companion Plants

Marigolds — French marigolds (Tagetes patula) specifically — are the most practical companion for a long-season crop like Corelli III that occupies a bed for 155-165 days. Their root exudates suppress soil nematodes, and that matters more than any above-ground pest effect. Sweet Alyssum is worth tucking in at the edges; it draws parasitic wasps and hoverflies that prey on the thrips and whiteflies that target lisianthus through a warm, humid season. Lavender and Catmint pull in similar beneficials without competing hard for water.

Black Walnut is the companion to treat as a hard boundary — the juglone it releases through root decomposition damages a wide range of ornamentals, and the affected zone can run well past what looks like a safe distance from the trunk. Around here in the southeast, Sunflowers show up in a lot of cutting gardens, but they shed allelopathic compounds and drink aggressively; in a dry stretch, a lisianthus bed planted 12-18 inches away from them will drop in vigor noticeably before you figure out why.

Plant Together

Marigolds

Repel aphids, whiteflies, and nematodes while attracting beneficial insects

Sweet Alyssum

Attracts beneficial predatory insects and provides ground cover

Nasturtiums

Act as trap crops for aphids and cucumber beetles, drawing pests away

Lavender

Repels moths, fleas, and mosquitoes while attracting pollinators

Zinnia

Attracts beneficial insects and butterflies, shares similar growing conditions

Catmint

Deters ants, aphids, and rodents while attracting beneficial pollinators

Cosmos

Attracts beneficial insects and provides structural diversity without competition

Parsley

Attracts beneficial parasitic wasps and hover flies that control aphids

Keep Apart

Black Walnut Trees

Release juglone toxin that inhibits growth and can kill sensitive flowering plants

Sunflowers

Produce allelopathic chemicals and compete aggressively for nutrients and water

Eucalyptus

Releases allelopathic compounds that inhibit germination and growth of nearby plants

Pests & Disease Resistance

Common Pests

Whiteflies, spider mites, thrips in greenhouse environments

Diseases

Fusarium wilt, Pythium root rot, powdery mildew in humid conditions

Troubleshooting Corelli™ III Light Pink

What you'll see, why it happens, and what to do about it.

Seedlings or young transplants collapsing at the soil line, roots dark and mushy, within the first few weeks of planting

Likely Causes

Pythium root rot — a water mold that thrives in saturated, poorly drained soil
Overwatering or containers/beds without adequate drainage

What to Do

1.Pull the affected plants immediately; don't compost them
2.Let the bed dry down before watering again — Corelli lisianthus wants consistent moisture, not wet feet
3.Next cycle, amend beds with perlite or coarse sand to improve drainage, and avoid watering late in the day

Plants wilting during the day even when soil is moist, lower leaves yellowing, stems showing brown discoloration when cut open

Likely Causes

Fusarium wilt (Fusarium oxysporum) — a soil-borne fungus that blocks water movement through the stem
Replanting lisianthus in a bed that had Fusarium pressure the previous season

What to Do

1.Remove and bag infected plants — Fusarium persists in soil for years, so don't compost
2.Rotate lisianthus out of that bed for at least 3 seasons
3.Solarize the bed in July or August by covering moist soil with clear plastic for 4-6 weeks; Georgia summers get hot enough to make this genuinely effective

Tiny silver streaking on petals and buds, or buds failing to open; sticky residue accumulating on leaves

Likely Causes

Thrips (Frankliniella occidentalis) — especially common in greenhouse starts or high-tunnel production
Whitefly feeding, which deposits honeydew that leads to sooty mold

What to Do

1.Check the undersides of leaves and inside buds with a hand lens — thrips are small enough to miss at a glance
2.Introduce Amblyseius cucumeris (a predatory mite) if you're growing under cover; it works well against thrips
3.For outdoor beds, hang yellow sticky traps at canopy height to monitor pressure, and apply insecticidal soap at 5-day intervals if populations are climbing

Frequently Asked Questions

How long does Corelli™ III Light Pink take to flower from seed?▼

Corelli™ III Light Pink requires 155–165 days from sowing to first bloom, making early indoor seeding essential. Start seeds indoors 10–12 weeks before your last spring frost to time blooms for late spring and summer harvest. Germination alone takes 10–14 days, followed by a slow seedling phase—patience is critical. Once transplanted outdoors after frost danger, blooms typically appear 6–8 weeks later, depending on daylight hours and warmth.

Is Corelli™ III Light Pink good for beginners?▼

Corelli™ III Light Pink is rated 'Easy' for difficulty, but the long growing season and slow seedling stage challenge impatient beginners. Success requires consistent moisture, good light, and early planning—not hands-on skill. If you're comfortable managing seedlings indoors and can wait months for blooms, you'll succeed. Gardeners seeking faster gratification should start with nursery transplants instead of seeds to reduce waiting time and risk.

Can you grow Corelli™ III Light Pink in containers?▼

Yes, Corelli™ III Light Pink thrives in containers using well-draining potting mix. Use 5–7 gallon containers with drainage holes, spacing one plant per pot for cut-flower size blooms. Containers dry faster than garden beds, requiring vigilant watering—let soil dry slightly between waterings, but never fully. Container growing simplifies disease management through air circulation and allows season extension by moving pots to shelter before frost.

What's the difference between Corelli™ III Light Pink and Arena III Baby Pink?▼

Corelli™ III Light Pink produces a paler, more delicate blush-pink tone than the deeper, richer pink of Arena III Baby Pink. Corelli™ III's maroon-burgundy centers are darker and more prominent, creating bolder color contrast. Both are Group 3 varieties with similar maturity times, but Corelli™ III Light Pink's lighter coloration suits pastels and softer arrangements, while Arena III Baby Pink delivers warmer, more saturated tones for classic designs.

When should I plant Corelli™ III Light Pink seeds indoors?▼

Sow Corelli™ III Light Pink seeds indoors 10–12 weeks before your region's last spring frost date. In Zone 5–6, this typically means late February to early March; in Zones 7–8, sow in March to April. Aim for transplant-ready seedlings (2–3 inches tall with true leaves) when outdoor nighttime temperatures stay above 50°F. Delaying sowing pushes blooms into late summer or fall, which suits this Group 3 variety but shortens your cutting season.

How do you keep Corelli™ III Light Pink buds from dropping?▼

Bud drop in lisianthus results from inconsistent watering, sudden temperature swings, or low humidity. Water deeply and evenly—never allow soil to completely dry or stay soggy. Maintain daytime temperatures around 70–75°F and provide 4–6+ hours of bright light daily. Improve humidity in arid climates by misting or placing pots on pebble trays with water. Consistent care eliminates most bud drop; erratic conditions trigger stress-induced abscission.