Salvia Crystal Blue
Salvia x hybrida 'Crystal Blue'
Essentials
At a Glance
Plant Type
Perennial
Height
20 inches
Width
22 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate once established
Humidity
Prefers dry to moderate humidity
Lifespan
Perennial
Native To
Europe, Western Asia
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Salvia x hybrida 'Crystal Blue' is a perennial shrub known for its upright growth habit, with aromatic, lance-shaped green leaves and striking spikes of vibrant blue flowers that attract pollinators throughout the summer. This cultivar is distinguished by its intense, vivid blue flower color and its compact, bushy form, making it an excellent choice for borders and containers.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or cuttings into well-draining soil in spring.
- Water regularly until established, then reduce frequency.
- Place in full sun for best flowering results.
- Fertilize monthly during the growing season with a balanced fertilizer.
- Prune after flowering to encourage bushy growth.
- Mulch lightly to retain moisture and suppress weeds.
Pro Tip
Ensure good drainage to prevent root rot and promote healthy growth.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 💧
- Deadhead spent flowers to encourage more blooms
- Prune lightly after flowering
Don't
- Overwater to avoid root rot ❌
- Use heavy clay soil without amendments
- Neglect pruning or fertilizing
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Salvia Crystal Blue questions
What zones can Salvia Crystal Blue grow in?
Salvia Crystal Blue is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Salvia Crystal Blue deer resistant?
Yes — Salvia Crystal Blue is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Salvia Crystal Blue bloom?
Salvia Crystal Blue typically blooms in late spring to 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 Salvia Crystal Blue need full sun?
Salvia Crystal Blue does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Salvia Crystal Blue drought tolerant?
Yes — once established (usually after the first full season), Salvia Crystal Blue handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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Grow Salvia Crystal Blue 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.
