Growing Calendula in Zone 10B

Calendula (pot marigold) is a cool-season flower with medicinal properties and cheerful blooms.

Zone 10B has a very long growing season with mild winters. Many crops can be grown nearly year-round with successive plantings.

Top Growing Tips

• Prefers cool weather — blooms best in spring and fall
• Self-seeds prolifically — you’ll have it forever after one planting
• Petals are edible — use as ‘poor man’s saffron’ in cooking
• Attracts beneficial insects including hoverflies and lacewings
• Used in herbal salves and skin care for centuries

Companion Planting

Good companions: tomatoes, asparagus, virtually everything

Avoid planting near: none — calendula is a universal garden friend

Harvest Timeline

Flowering in 45-60 days from seed; harvest when fully open

About Zone 10B

USDA Hardiness Zone 10B has an average last spring frost around Jan 15 and first fall frost around Dec 31. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.