flower · Asteraceae

Calendula

Calendula officinalis

A cool-season annual flower with edible petals and a long bloom period when faded flowers are removed regularly.

Difficulty1 / 5
Cold toleranceHalf-hardy
Space per plant~1.00 ft²
ContainerYes
Supportnone
Household planning

How many calendula plants?

A normal fresh-eating goal with the catalog loss buffer. Preservation needs and appetite can raise the count.

1 adult1–11 typical plants
2 adults1–11 typical plants
4 adults1–11 typical plants
Adjust household, appetite, preserving, and loss →
Season timing

When does it go in?

Typical first action2 weeks before last frost
Maturity range45–65 days
Harvest window50–110 days
Latest planting buffer65 days before fall frost

Dates are frost-relative planning windows. Soil temperature, current weather, plant condition, and cultivar instructions can move them.

Calculate dates from my frost date →
Space and harvest

What does one plant ask for?

In-row spacing8–12 in
Between rows10–18 in
Yield range3–10 bunches
Yield confidencelow

Yield ranges assume a surviving plant and still vary with cultivar, soil, sun, weather, pests, watering, and harvest habits.

Container fit

A container can work.

1minimum gallons per plant
2recommended gallons per plant
8″minimum useful depth
Size a container for several plants →