Also known as Arum Lily · 206 gardener saves
Arum: the varieties gardeners actually grow
Arum, the genus most gardeners know as arum lily. We track 11 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.
The 11 most-saved Arum varieties
Of 11 in the catalog — ordered by how many gardeners actually grow them.
#1 most savedItalian arum
Arum italicum 'neglectum'
#2 most savedItalian Arum
Arum x hybrida
#3 most savedItalian Arum White Winter Arum
Arum italicum 'White Winter'
Italian Arum
Arum italicum 'Silver Vein Pattern'
Italian Arum Marmoratum
Arum italicum 'Marmoratum'
Silver Cloud Arum
Arum italicum 'Silver Cloud'
Italian Arum
Arum italicum 'Scottish Silver'
Sintenis's Arum
Arum sintenisii
Cretan Arum
Arum concinnatum
Palestinian Arum
Arum palaestinum
Black Arum
Arum x diotalicum 'Jet Black Wonder'
How to grow Arum
What the Arum varieties in our catalog actually agree on — drawn from the care records of the 11 most-grown of them, not from a generic template.
The Arum year
- PlantJuly–September100% of varieties
Plant tubers when dormant in late summer or early fall
- DivideJuly and August91% of varieties
Divide overcrowded clumps every few years during summer dormancy
- Spring CleanupMay and June55% of varieties
Foliage dies back naturally in late spring; remove yellowing leaves
- MulchMarch and October36% of varieties
Apply light mulch in spring; refresh in fall as winter foliage emerges
Do
- Water regularly to keep soil moist 🌱
- Mulch to conserve moisture
- Divide clumps every few years
- Mulch to retain soil moisture
- Keep soil consistently moist 🌱
Avoid
- Avoid overwatering to prevent root rot ❌
- Don’t expose to full sun in hot climates
- Avoid overwatering to prevent rot ❌
- Refrain from disturbing dormant rhizomes during winter
What goes wrong with Arum
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue on leaves | Spray with neem oil |
| Slugs | Chewed holes on leaves | Use organic slug pellets or diatomaceous earth around plants |
| Root rot | Wilting and yellowing leaves | Ensure well-draining soil and reduce watering |
| Snails | Chewed leaves and slime trails | Handpick or set snail traps |
| Root rot | Wilting and browning leaves | Improve drainage and reduce watering |
| Fungal leaf spot | Dark spots on leaves | Apply organic fungicide |
| Root Rot | Wilting and browning of foliage | Improve drainage and reduce watering |
Making more Arum
Division
- Dig up mature rhizomes in early spring
- Divide into sections with roots attached
- Plant immediately in prepared soil
- Water thoroughly after planting
- Allow 6 weeks for establishment
Rhizome division
- Dig up mature clumps in early spring.
- Separate rhizomes with a sharp knife.
- Plant divisions 2 inches deep in moist soil.
- Water thoroughly after planting.
- Allow 6 weeks for establishment.
Arum questions
How many types of Arum are there?
The Sow catalog tracks 11 distinct Arum varieties. The most popular — ranked by 206 real gardener saves — are shown first above.
What zones does Arum grow in?
Across its varieties, Arum covers USDA Zones 4–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Arum bloom?
Most Arum varieties bloom in spring, late spring, early spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Arum 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.
Keep exploring
Design with Arum in your own yard
Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.
