Also known as Masterwort · 419 saves
Astrantia
Astrantia, the genus most gardeners know as masterwort. We track 11 varieties; the ones most used by real gardeners.
The 11 most-saved Astrantia varieties
Species of Astrantia
Each one is a parent of the varieties above.
Track your Astrantia in Sow
Save the Astrantia you grow and get care reminders timed to your zone.
How to grow Astrantia
Whats common across all Astrantia varieties in our catalog — drawn from the care records of the 11 most-grown of them.
The Astrantia year
- DivideMarch and September100% of varieties
Divide mature clumps every 3-5 years to rejuvenate
- DeadheadMay–August100% of varieties
Remove spent flowers to encourage continuous blooming
- Spring CleanupFebruary82% of varieties
Remove old foliage before new growth emerges
- MulchMarch45% of varieties
Apply organic mulch to retain moisture and keep roots cool
- PruneJuly45% of varieties
Cut back flowering stems hard after first flush for rebloom
- FertilizeMarch45% of varieties
Apply balanced fertilizer or compost in early spring
Do
- Prune after flowering to maintain shape and encourage new growth
- Prune after flowering to maintain shape
- Water regularly to keep soil evenly moist 🌱
- Mulch to retain moisture and regulate soil temperature
- Water regularly to keep soil moist but not waterlogged 🌱
Avoid
- Avoid overwatering to prevent root rot ❌
- Refrain from heavy fertilizing late in the season
- Do not expose to full, harsh sunlight in hot climates ❌
- Avoid heavy, waterlogged soil
What goes wrong with Astrantia
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue and distorted leaves | Use neem oil spray or insecticidal soap |
| Slugs | Irregular holes in leaves | Use organic slug bait or handpick at night |
| Powdery mildew | White powdery coating on leaves | Apply organic fungicide and improve air circulation |
| Powdery Mildew | White powdery coating on foliage | Apply a fungicidal spray and improve air circulation |
| Powdery Mildew | White powder on leaves | Apply a fungicide suitable for organic gardening and improve air circulation |
| Powdery mildew | White powdery coating on leaves | Improve air circulation and apply fungicide |
| Root Rot | Wilting and yellowing leaves | Ensure well-draining soil and reduce watering |
Making more Astrantia
Division
- Dig up mature plants in early spring or fall.
- Gently separate clumps with a sharp knife or spade.
- Replant divisions at the same depth and water thoroughly.
- Allow roots to establish for 2–3 weeks.
Seed
- Collect seeds after flowering in late summer.
- Sow seeds in moist, well-drained seed-starting mix.
- Cover lightly with soil and keep moist.
- Germination occurs in 2–4 weeks.
Astrantia questions
How many types of Astrantia are there?
The Sow catalog tracks 11 distinct Astrantia varieties. The most popular — ranked by 419 real gardeners — are shown first above.
What zones does Astrantia grow in?
Across its varieties, Astrantia covers USDA Zones 4–8. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Astrantia bloom?
Most Astrantia varieties bloom in late spring, late spring to mid-summer, late spring to summer. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Astrantia should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.