Garden Cosmos 'Rose Bonbon'

Cover the seeds about 1/2 in. deep. Keep seeds moist and provide light until ready for hardening off. Plantlets should be free of weeds and watered.²

Try to plant in a location that enjoys full sun and remember to water moderately. Rose Bonbon is generally regarded as a half hardy plant, so remember to protect this plant from frosts and low temperatures. Rose Bonbon needs a soil ph of 6.0 to 8.5 (weakly acidic soil - weakly alkaline soil).

Try to aim for a seed spacing of at least 5.85 inches (15.0 cm) and sow at a depth of around 0.5 inches (1.27 cm). For optimal germination, soil temperature should be a minimum of 20°C / 68°F.

By our calculations, you should look at sowing Rose Bonbon about 28 days before your last frost date.

Rose Bonbon is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

The botanical epithet is from the Latin bipinnatus meaning “staunch” or “like two small wings”.¹

¹ Latin Dictionary

² www.reneesgarden.com/products/cosmos-rose-bon-bon