How to Grow Nigella
Nigella At a Glance
Difficulty
Easy
Category
Flower
Sun Exposure
Full Sun
Frost Tolerance
Frost Hardy
Cold Hardiness
Survives to -12°C
Plant Family
Ranunculaceae
Growing Season
Cool Season
Plant Lifecycle
Annual
How to Start It
★ Recommended for beginners
Nigella handles frost, so scatter the seeds right where they will flower about 2 weeks before your last spring frost, or in late fall so they come up on their own in spring. Cover them with about 1 cm of soil and keep it damp, and they sprout in 10 to 21 days. Thin them (pull the extras so each has room) to 15 cm apart, and do not move them, since nigella hates being transplanted.
Nigella, also called love-in-a-mist, is about as easy as flowers get: sow it once and it drops so much seed that it usually comes back every year on its own. After the blue, pink or white flowers come puffy, striped seed pods that look great in fresh or dried bouquets.
When To Start
Nigella likes cool weather. Sow it in early spring, as soon as the ground can be worked.
We do not have exact sowing dates for this one yet.
When should you plant Nigella?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Nigella Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
Your Nigella Calendar
Set your location to turn these into exact dates and reminders.
Sow nigella seeds right where they will flower
2 weeks before your last frost· every year
Cut nigella flowers and pods, leave some to drop seed
60 days after your last frost· every year· optional
Did you water your nigella seedlings today? Keep the top of the soil damp until they are up and growing.
About 1 days after you plant it
Your nigella is coming up! Thin crowded seedlings, they do not like being moved.
About 30 days after you plant it
Lovely! Once the flowers fade, leave a few to form their puffy seed pods.
About 90 days after you plant it
The Journey Ahead
Nigella's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
1 cm
Seeding Depth
15 cm
Plant Spacing
30 cm
Row Spacing
Vertical Growing
No.
Succession Planting
Yes: a few sowings spread the short individual flowering window.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 10–21 days
Growing Tips
- 1Sow nigella in full sun, at least 6 hours a day.
- 2It grows in any soil that drains well and needs no compost or feeding.
- 3Water until the seedlings are up, then only in long dry spells.
- 4Each plant flowers for just a few weeks, so sow a few more seeds every 3 to 4 weeks until early summer for a longer show.
- 5It needs no staking, and pests rarely bother it.
- 6Its seeds are not the black seeds used in cooking, which come from a different plant, so do not eat them.
Seedling Phase
Step 3
Growth & Maturity
50 cm
Mature Height
20 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
When to Pick
Flowers early-mid summer; then the decorative pods take over for drying or seed
How to Harvest
- 1Cut flowers for a vase as soon as they open, and they last about a week.
- 2For dried bouquets, wait until the seed pods are puffed up and striped, then cut them with long stems.
- 3Hang the pod stems upside down in a dark, airy spot for about 2 weeks to dry.
- 4Leave some pods on the plants to dry and split open, and you will have new plants next year.
Step 5
Saving Seeds
How to Save Seeds
Nigella is easy to save: leave a few pods on the plant until they turn papery and brown and the seeds rattle inside. Different colours cross through bees, so mixed plants give mixed colours, which is part of the fun. Hybrid F1 seeds will not grow true, but most nigella is not a hybrid. Cut the dry pods into a paper bag and shake out the small black seeds. Store them in a labelled envelope somewhere cool, dark and dry, where they keep about 2 to 3 years.
Seed Production
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