annual
Cosmos
Cosmos bipinnatus
Airy, delicate annual with daisy-like flowers. Thrives in poor soil and drought. Self-sows freely.
USDA Zones
2–11
Height
tall (2–5 ft)
Bloom Season
June – October
Bloom Color
pink, white, red, purple, bicolor
🦌 Deer ResistantDeer tend to avoid this plant🐕 Dog-Friendly†Not listed as toxic to dogs by common horticultural references. See disclaimer below.🐈 Cat-Friendly†Not listed as toxic to cats by common horticultural references. See disclaimer below.🐝 Attracts PollinatorsAttracts bees and other pollinators🦋 Attracts ButterfliesAttracts butterflies
† "Dog-Friendly" / "Cat-Friendly" means this plant is not listed as toxic by common horticultural references. It is not a guarantee of safety for all animals in all circumstances. If your pet ingests any plant, contact your vet or the ASPCA Animal Poison Control Center: (888) 426-4435.
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Sun Requirements
Full Sun
6+ hours of direct sunlight daily
Soil Type
well-drained, poor to average
Care Requirements
Water Needslow
Maintenancelow
EvergreenNo
Complete Care Guide
Cosmos actually prefer poor, dry soil. Rich soil produces lush foliage but fewer flowers. Direct sow after last frost.