annual

Star marigold

The Story

Plant Bio

Calendula stellata, the star marigold, is a branching annual herb native to the Mediterranean basin, characterized by its grayish-green pubescent foliage and daisy-like yellow to orange flowers. It grows as an erect to slightly prostrate mound, thriving in sunny, well-drained locations where it blooms continuously from spring until the first autumn frost.

This species is distinguished from common pot marigold by its unique star-shaped outer fruiting structures and elongated involucral bracts. The edible petals serve as a traditional saffron substitute and make a colorful addition to salads.

Uses & Benefits:

Produces bright yellow to orange daisy-like flowers continuously from spring to fall.

Edible petals can be harvested and used as a natural food coloring or saffron substitute.

Attracts native bees, generalist pollinators, and beneficial insects to the garden.

Essentials

At a Glance

Plant Type

Annual

Height

24"

Width

18"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Moderate

Humidity

Low to Moderate

Lifespan

Annual

Native To

North Africa, Southern Europe, Macaronesia

Toxicity

Non-toxic

Bloom period

Spring – Fall

In flower about 9 months of the year

Planting

How to Grow

Sow seeds directly into prepared garden beds after the last spring frost, covering them with a quarter-inch of fine soil.
Thin emerging seedlings to stand twelve inches apart to allow adequate air circulation and prevent fungal diseases.
Water deeply but infrequently, allowing the top two inches of soil to dry out completely between waterings.
Deadhead spent blooms weekly to prevent early seed set and prolong the flowering period through autumn.

Pro Tip

Pinch out the growing tips of young plants early in the season to force lateral branching, which significantly increases the number of flower heads.

Keep It Thriving

Care Guide

Do

Provide full sun to maximize flower production and maintain a compact growth habit.
Ensure sharp soil drainage to prevent root rot in wet conditions.
Pinch young shoots early in the season to encourage a bushier habit.

Don't

Do not over-fertilize, as excess nitrogen stimulates foliage growth at the expense of flowers.
Avoid overhead watering, which leaves foliage wet and encourages powdery mildew.
Do not cut back into old, leafless woody stems when pruning.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Pest Check
Pinch
Propagate

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Border edgingCottage gardensContainer plantingGravel and rock gardens

Companion Plants

Salvia officinalis Rosmarinus officinalis Lavandula angustifolia

Multiply

Propagation Methods

Good to Know

Common Questions

Star marigold questions

What zones can Star marigold grow in?

Star marigold is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Star marigold deer resistant?

Not reliably. Deer may browse Star marigold, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Star marigold bloom?

Star marigold typically blooms in spring through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Star marigold need full sun?

Star marigold does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Star marigold drought tolerant?

Yes — once established (usually after the first full season), Star marigold handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.