Heirloom

Double Click Rose Bon Bon

Cosmos bipinnatus

Photo: Ermell · Wikimedia Commons · (CC BY-SA 4.0)

Tall plants with large fully double and semidouble, fluffy blooms. Cheerful, 2-3" rose-colored blooms make this a great cut flower and garden addition.

Harvest

75-90d

Days to harvest

📅

Sun

Full sun to partial shade

☀️

Zones

2–11

USDA hardiness

🗺️

Height

2-4 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 Double Click Rose Bon Bon in USDA Zone 7

All Zone 7 flower →

Zone Map

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Double Click Rose Bon Bon · Zones 2–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing18-24 inches

SoilWell-drained loam, slightly acidic

WaterRegular

SeasonWarm season annual

ColorRose pink

Size2-3"

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
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	—
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	—

Succession Planting

Direct sow every 14-18 days from your last frost date through early June in zone 7; cosmos germinate in 7-14 days and hit bloom in 75-90 days, so a late-May sowing will carry you into fall. Stop once daytime highs are reliably above 90°F — germination rates drop and young seedlings struggle to establish in that heat. Deadhead every 2-3 days once the plants are going and they'll rebloom steadily on their own, but a second sowing about 6 weeks after the first gives you a distinct flush of late-summer cut flowers rather than a slow trickle.

Complete Growing Guide

Tall plants with large fully double and semidouble, fluffy blooms. Cheerful, 2-3" rose-colored blooms make this a great cut flower and garden addition. According to Johnny's Selected Seeds, Double Click Rose Bon Bon is 75 - 90 days to maturity, annual, open pollinated. Notable features: Use for Cut Flowers and Bouquets.

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: Clay, Loam (Silt), Sand. Soil pH: Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Occasionally Dry. Height: 2 ft. 0 in. - 4 ft. 0 in.. Spread: 2 ft. 0 in. - 3 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Rapid. Maintenance: Low. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

Double Click Rose Bon Bon reaches harvest at 75 - 90 days from sowing per Johnny's Selected Seeds. Expect 2-3" at peak. As an annual, harvest continues until frost ends the season.

Type: Capsule.

Storage & Preservation

Cut blooms should be stored in a cool location, ideally in a refrigerator at 35-40°F with humidity between 80-90% to extend vase life. Fresh roses last 7-14 days in water with flower food. For preservation, try air-drying by hanging stems upside-down in a dark, well-ventilated space for 2-3 weeks, or use silica gel for faster drying while maintaining color and shape. Pressing between heavy books is another method for crafts and arrangements. Change water every 2-3 days and trim stems at an angle to maximize longevity.

History & Origin

Double Click Rose Bon Bon is open-pollinated, meaning seed saved from healthy plants will produce true-to-type offspring. Listed in the Johnny's Selected Seeds catalog.

Origin: Mexico and southwest North America

Advantages

+Large fully double fluffy blooms create dramatic visual impact in gardens.
+Excellent cut flower with 2-3 inch rose-colored blooms for arrangements.
+Easy to grow variety suitable for beginner and experienced gardeners.
+Tall plants provide good height for back borders and garden structure.
+Blooms reliably within 75-90 days from planting to flowering.

Considerations

-Tall plants may require staking or support in windy locations.
-Fully double blooms can trap moisture and promote fungal diseases.
-Rose coloring may fade in intense afternoon heat and direct sun.

Companion Plants

Marigolds (French types like 'Petite Yellow') and nasturtiums earn their spot in the bed — marigolds push back aphids and whiteflies through both root exudates and foliar compounds, while nasturtiums act as a trap crop, drawing aphids away from your cosmos before they build up. Alyssum pulls in parasitic wasps that work through caterpillar pressure, and a border of chives or garlic disrupts pest navigation by scent. Two things to keep at a real distance: black walnut roots leach juglone into the surrounding soil, and cosmos are sensitive enough that planting within 50-60 feet will cost you vigor and bloom count. Large trees cause a different problem — their roots drink first, and Double Click Rose Bon Bon in dry, shaded ground just sulks.

Plant Together

Marigolds

Repel aphids, whiteflies, and nematodes while attracting beneficial insects

Lavender

Deters pests like moths and rabbits while attracting pollinators

Chives

Repel aphids and Japanese beetles, improve soil health

Garlic

Natural fungicide properties help prevent black spot and powdery mildew

Catmint

Repels ants, aphids, and rodents while attracting beneficial predatory insects

Alyssum

Attracts hoverflies and lacewings that feed on rose pests

Parsley

Attracts beneficial insects and may improve rose fragrance

Nasturtiums

Act as trap crop for aphids and cucumber beetles

Keep Apart

Black Walnut

Produces juglone which is toxic to roses and inhibits growth

Large Trees

Compete for nutrients and water, create excessive shade reducing bloom production

Brassicas

Compete for similar nutrients and may attract pests that also damage roses

Pests & Disease Resistance

Diseases

Powdery mildew, black spot, rose rosette virus

Troubleshooting Double Click Rose Bon Bon

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

White powdery coating on leaves and stems, usually appearing mid-summer when nights cool down

Likely Causes

Powdery mildew (Erysiphe cichoracearum) — thrives in warm days with cool, humid nights
Poor airflow from crowded planting at less than 18-inch spacing

What to Do

1.Strip the worst-affected leaves and bin them — don't compost them
2.Spray remaining foliage with a diluted baking soda solution (1 tablespoon per gallon of water) weekly
3.Next sowing, thin to at least 18 inches apart and avoid overhead watering late in the day

Black or dark brown spots on leaves, sometimes with a yellow halo, leaves dropping early

Likely Causes

Black spot (Diplocarpon rosae) — fungal, spreads by water splash from rain or overhead irrigation
Wet foliage sitting overnight

What to Do

1.Water at the base of the plant in the morning so the soil surface dries before evening
2.Remove and trash all spotted leaves immediately — they carry active spores
3.Apply a copper-based fungicide every 7-10 days if the problem persists through a wet stretch

Stunted, distorted new growth with mosaic-patterned leaves — yellowing in irregular patches, flowers deformed or absent

Likely Causes

Rose rosette virus (RRV) — transmitted by the eriophyid mite Phyllocoptes fructiphylus
No cure exists; infected plants are a live reservoir that can spread RRV to nearby susceptible plants

What to Do

1.Pull and bag the entire plant immediately — do not compost it
2.Treat surrounding plants with horticultural oil (2% dilution) to knock back mite populations
3.Leave that spot unplanted with cosmos or other susceptible varieties for at least one full season

Tall, floppy plants falling over by mid-season, stems snapping at the base

Likely Causes

Over-fertilizing with nitrogen — cosmos are light feeders and produce weak, lanky growth in rich soil
Insufficient sun; Double Click Rose Bon Bon needs at least 6 hours of direct light to build sturdy stems

What to Do

1.Pinch plants back by one-third when they reach about 12 inches tall to force branching and thicker stems
2.Skip fertilizer unless your soil is genuinely poor — average garden soil is enough
3.Stake with bamboo canes or plant in a block of 9 or more so plants brace each other

Frequently Asked Questions

How long do Double Click Rose Bon Bon cut flowers last in a vase?▼

With proper care, these roses typically last 7-14 days in a vase. Keep water clean and cool (35-40°F if possible), change it every 2-3 days, and trim stem ends at an angle. Remove lower leaves to prevent bacterial growth. Flower food can extend vase life by providing nutrients.

Can you grow Double Click Rose Bon Bon roses in containers?▼

Yes, these plants can be grown in containers, though larger pots (12+ inches) are recommended for tall plants. Use well-draining potting soil and ensure containers have drainage holes. Container roses may need more frequent watering than in-ground plants and perform best with full sun exposure.

When should I plant Double Click Rose Bon Bon seeds?▼

Start seeds indoors 6-8 weeks before your last frost date for spring planting, or direct sow after all danger of frost has passed. These heirloom flowers prefer to be started indoors for better germination and earlier blooms. In warmer climates, fall planting is also possible for winter blooming.

How much sun do Double Click Rose Bon Bon roses need?▼

These roses thrive in full sun to partial shade, needing at least 4-6+ hours of direct sunlight daily. More sunlight typically produces fuller, more abundant blooms. In hot climates, partial afternoon shade can help protect delicate petals from scorching while maintaining blooming performance.

Is Double Click Rose Bon Bon easy to grow for beginners?▼

Yes, this is an easy-to-grow heirloom variety, making it excellent for beginner gardeners. Its straightforward care requirements, hardy nature, and prolific blooming make it forgiving. Focus on regular watering, adequate sunlight, and deadheading spent flowers to encourage continuous blooming throughout the season.

How do you preserve Double Click Rose Bon Bon roses long-term?▼

Air-drying is ideal: hang stems upside-down in a dark, dry, well-ventilated area for 2-3 weeks. Alternatively, use silica gel for faster drying in 1-2 weeks while preserving color better. Pressed roses work well for crafts and keepsakes. Dried roses last 1-2 years when stored in cool, dry conditions away from direct light.