SproutSmart
SproutSmart™ Intelligent Garden Sowing

Versailles Mix

Family: Asteraceae Flower
Zone 6b Save Garden

Planting Schedule

Add Versailles Mix to your garden to build a schedule and get reminders.

A living bouquet in bloom—Versailles Mix opens into a riot of petals that glow in warm sunset tones and cool jewel shades, with feathery movement that seems to shimmer in the breeze.

The flowers are airy yet richly colored, making a light-catching presence in the garden from early summer through fall, with a long, dependable season for continuous display. Ideal for pollinator gardens and ornamental borders, Versailles Mix brings effortless color drama and graceful texture to beds and containers alike.

Light: Full SunMaturity: 70 DaysHabit: Upright

Botanical illustration of Versailles Mix

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 25th
Transplant / Sow OutdoorsApr 25th
Harvest BeginsJul 4th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity70
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)Not Required

Frequently Asked Questions

What pest or disease most commonly affects Cosmos bipinnatus (Versailles Mix), and how do I control it?
Watch for aphids and caterpillars (often on tender new growth and flower buds). Rinse plants with a strong water spray, then spot-treat with insecticidal soap if you still see clusters, repeating every 5–7 days. Cosmos in crowded, damp conditions can also develop powdery mildew; improve airflow by thinning and water at the soil line rather than wetting foliage.
How often should I water Cosmos bipinnatus during the main growing phase?
During active growth and bud formation, keep the soil evenly moist but not soggy—about 1–2 inches of water per week depending on heat and soil drainage. Water deeply when the top 1 inch of soil feels dry, and then let it dry slightly before watering again to avoid root stress.
How can I tell when Versailles Mix Cosmos bipinnatus is ready to harvest?
Harvest when flowers are fully open and the petals look crisp and well-colored, typically around 70 days from sowing. For the best continuous bloom, snip blooms with a short stem just above a leaf node and harvest before they start to look limp or begin forming dry seed heads.

Today's Conditions

Outdoor planting for Versailles Mix in Zone 6b typically begins around 2026-04-25. Wait until soil reaches at least 60°F before transplanting Versailles Mix.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Versailles Mix.

Today's Conditions

Outdoor planting for Versailles Mix in Zone 6b typically begins around 2026-04-25. Wait until soil reaches at least 60°F before transplanting Versailles Mix.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Versailles Mix.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors.

Expert Note

For best results, sow cosmos after frost directly in full sun and keep seedlings evenly moist until established, then let them dry slightly to prevent legginess.