Calendula
cool-season crop
At a glance
| Suitable zone groups | All four zone groups (3-4, 5-6, 7-8, 9-10), as a cool-season annual |
|---|---|
| Planting window | See the guide text below, in general terms relative to your last spring frost |
| Sun | Full sun to partial shade |
| Soil | Well-draining, fertile soil |
| Watering | Regular watering |
About this plant
Calendula produces cheerful flowers for beds and containers during the cooler growing season. Grow it as a cool-season annual in all four zone groups (3-4, 5-6, 7-8, 9-10), in full sun to partial shade.
Plant in well-draining, fertile soil and provide regular watering. Remove faded blooms and check the soil in containers often, since pots can dry faster than garden beds.
Common beginner failures and fixes
- Plants declining in hot weather: Schedule the planting for the cool season rather than expecting peak flowering through summer heat.
- Water collecting around roots: Improve drainage or choose a container with unobstructed drainage holes.
- Container soil repeatedly drying out: Check moisture regularly and water before prolonged dryness stresses the plant.
- Spent flowers left to form seed: Remove faded blooms if you want to encourage continued flowering.
Beginner checklist
- Plan a cool-season annual planting in your zone group.
- Choose full sun to partial shade.
- Prepare well-draining, fertile soil.
- Provide regular watering.
- Remove faded flowers to encourage more blooms.
Zone groups and planting windows here are general guidance. Confirm your own zone and last frost date locally before planting.