Mixed
75 Flower & Vegetable Combo Kit
Coriander, Acroclinium Mix, Tomato, Helichrysum, Chilli +70 more
Flower growing guide
Cosmos
Cosmos bipinnatus
Everything you need to grow Cosmos successfully — from sowing to harvest.
🌱 Found in 5 combos
Care at a glance
The essentials for healthy growth.
☀️
Sunlight
Full sun
💧
Watering
Drought-tolerant once established; water moderately.
🌡️
Temperature
18°C – 30°C (64°F – 86°F)
🌱
Germination
7–14 days
🌤️
Season
Summer to Autumn
🌾
Harvest / Bloom
60–90 days to bloom
Soil & sowing
Get the foundation right for strong roots.
🪴
Soil type
Light, even poor, well-draining soil.
⚗️
Soil pH
6.0 – 7.0
📏
Sowing depth
¼ inch
↔️
Spacing
12 inches apart
🐛 Pests & problems
Pest management
Largely trouble-free; aphids occasionally.
Troubleshooting
Too much fertiliser gives leaves, not flowers — keep soil lean.
🧺 Harvest & friends
Harvest & storage
Cut blooms for the vase regularly to extend flowering.
Companion plants
Marigold, Zinnia, Sunflower
Related seeds
Other varieties that grow well alongside Cosmos.
Get Cosmos in these combos
This variety is included in the following seed combos.
Mixed
Flower
50 Flower Seeds Grand Pack
Acroclinium Mix, Gypsophila Elegans, African Marigold, Helichrysum, Alyssum +45 more
Mixed
70 Veggie & Flower Combo Kit
Coriander, Nemophila, Chilli, Zinnia, Onion Red +65 more