Species
Centranthus ruberRed Valerian1 other cultivar
The Story
Plant Bio
Centranthus ruber 'Alba' is a perennial with clumping habit, known for its striking white flowers.
Distinctive white flowers compared to the typical red variety, creating a softer appearance in the garden.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
30 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8
Water
Low
Humidity
Average
Lifespan
Perennial
Native To
Mediterranean
Toxicity
Non-toxic to humans and pets
Bloom period
Early summer – Late summer
In flower about 3 months of the year
Planting
How to Grow
- Tuck seeds into well-drained soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and encourage root growth.
- Water young plants weekly to establish strong roots.
- Fertilize with a balanced liquid feed monthly during growing season.
- Prune after flowering to promote bushy growth and remove dead stems.
- Mulch around plants to conserve moisture and suppress weeds.
Pro Tip
Plant in full sun with well-drained soil for vibrant blooms and healthy growth.
Keep It Thriving
Care Guide
Do
- Water regularly during dry spells 🌱
- Deadhead spent flowers to encourage more blooms
- Prune to shape and remove dead stems
Don't
- Avoid overwatering to prevent root rot ❌
- Do not plant in heavy, poorly-drained soil
- Refrain from excessive fertilizing which can cause legginess
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
White Valerian questions
What zones can White Valerian grow in?
White Valerian is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is White Valerian deer resistant?
Yes — White Valerian is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does White Valerian bloom?
White Valerian typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does White Valerian need full sun?
White Valerian does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is White Valerian drought tolerant?
Yes — once established (usually after the first full season), White Valerian handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Centranthus to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow White Valerian with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.