Also known as Vervain · 29 saves
Glandularia
Glandularia, the genus most gardeners know as vervain. We track 3 varieties; the ones most used by real gardeners.
The 3 most-saved Glandularia varieties
Species of Glandularia
Each one is a parent of the varieties above.
Track your Glandularia in Sow
Save the Glandularia you grow and get care reminders timed to your zone.
How to grow Glandularia
Whats common across all Glandularia varieties in our catalog — drawn from the care records of the 3 most-grown of them.
The Glandularia year
- DeadheadJune–August67% of varieties
Shear back lightly after a flush of blooms to encourage continuous flowering.
- FertilizeMay67% of varieties
Feed monthly with a balanced liquid fertilizer, especially in containers.
Do
- Give it full sun and dry, free-draining soil ☀️
- Shear lightly after the first flush ✂️
- Let it self-seed to renew the patch 🌱
- Use it as sprawling cover at a border front 🌸
- Water regularly during dry periods 🌱
Avoid
- Plant it in wet or heavy soil ❌
- Expect individual plants to be long-lived ❌
- Deadhead every flower and prevent any seed set ❌
- Overwater to prevent root rot ❌
What goes wrong with Glandularia
| Problem | What you'll see | What to do |
|---|---|---|
| Spider mites | Stippled leaves with fine webbing in hot dry weather | Hose the foliage down; damage is usually limited |
| Slugs and snails | Holes chewed in the low sprawling foliage | Clear debris and trap or pick at night |
| Aphids | Sticky residue and distorted leaves | Spray with insecticidal soap or neem oil |
| Spider Mites | Fine webbing on undersides of leaves, stippled foliage. | Spray with a strong jet of water. Use insecticidal soap or horticultural oil for heavier infestations. |
| Powdery mildew | White coating on leaves in humid or crowded conditions | Thin the planting for air movement and avoid overhead watering |
| Powdery Mildew | White, powdery coating on leaves and stems. | Provide good air circulation and avoid overhead watering. Apply horticultural oil or a fungicide containing potassium bicarbonate. |
Making more Glandularia
Stem cuttings
- Take rooted or unrooted trailing stems in summer.
- Insert into free-draining compost and keep lightly moist.
- Pot on once roots have formed.
seed
- Tuck seeds into moist soil in early spring
- Keep soil consistently moist for germination, approximately 2 weeks
Glandularia questions
How many types of Glandularia are there?
The Sow catalog tracks 3 distinct Glandularia varieties. The most popular — ranked by 29 real gardeners — are shown first above.
What zones does Glandularia grow in?
Across its varieties, Glandularia covers USDA Zones 6–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Glandularia bloom?
Most Glandularia varieties bloom in late spring, summer to fall, late spring through summer. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Glandularia 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.