Also known as Jacob's Ladder · 171 gardener saves
Polemonium: the varieties gardeners actually grow
Polemonium, the genus most gardeners know as jacob's ladder. We track 7 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 7 most-saved Polemonium varieties
Of 7 in the catalog — ordered by how many gardeners actually grow them.
#1 most savedHeavenly Habit Jacob's Ladder
Polemonium boreale 'Heavenly Habit'
#2 most savedRoyal Jacob's Ladder
Polemonium carneum
#3 most savedJacob's Ladder Golden Feathers
Polemonium reptans 'Golden Feathers'
Jacob's Ladder Stairway to Heaven
Polemonium reptans 'Stairway to Heaven'
Jacob's Ladder Touch of Class
Polemonium reptans 'Touch of Class'
Heaven Scent Jacob's Ladder
Polemonium 'Heaven Scent'
Yezo Jacob's Ladder
Polemonium yezoense 'Purple Rain Strain'
How to grow Polemonium
What the Polemonium varieties in our catalog actually agree on — drawn from the care records of the 7 most-grown of them, not from a generic template.
The Polemonium year
- DivideMarch and September86% of varieties
Divide clumps every 3-4 years to maintain vigor
- DeadheadMay and June86% of varieties
Remove spent flower stalks to encourage rebloom and neatness
- Spring CleanupFebruary71% of varieties
Remove dead or damaged foliage before new growth begins
- MulchMarch and April71% of varieties
Apply organic mulch to keep roots cool and conserve moisture
- PlantMarch, April, September and October57% of varieties
Plant in spring or early fall in moist, well-drained soil
Do
- Water regularly to keep soil moist 🌱
- Mulch around plants to retain moisture
- Mulch to retain soil moisture
- Divide every 3–4 years for renewal
- Water consistently during dry periods 🌱
Avoid
- Avoid overwatering to prevent root rot ❌
- Avoid dry or overly sunny locations ❌
- Don't let soil dry out completely
- Avoid heavy, compacted soils
What goes wrong with Polemonium
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue and distorted leaves | Spray with neem oil or insecticidal soap |
| Leafminers | Winding, white or tan trails within the leaves. | Remove and destroy affected leaves. Usually cosmetic. Spinosad-based organic insecticides can be effective if sprayed early. |
| Slugs | Holes in leaves, slime trails | Use organic slug bait or handpick at night |
| Powdery mildew | White powder on leaves | Improve air circulation and apply fungicide |
| Root rot | Wilting, yellowing leaves | Improve drainage and reduce watering |
| Powdery Mildew | White powdery coating on leaves | Improve air circulation and apply fungicide if necessary |
Making more Polemonium
Division
- Dig up mature clumps in early spring.
- Separate smaller sections with a sharp knife or spade.
- Replant divisions immediately at same depth.
- Water thoroughly after planting.
- Repeat every 3-4 years for vigor.
seed
- Tuck seeds into moist soil in early spring.
- Maintain consistent moisture for 6 weeks until germination.
Polemonium questions
How many types of Polemonium are there?
The Sow catalog tracks 7 distinct Polemonium varieties. The most popular — ranked by 171 real gardener saves — are shown first above.
What zones does Polemonium grow in?
Across its varieties, Polemonium covers USDA Zones 4–9. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Polemonium bloom?
Most Polemonium varieties bloom in late spring, late spring to early summer, early spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Polemonium 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
Polemonium shows up in
Design with Polemonium 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.
