Costa Silver Snapdragon
Antirrhinum majus 'Costa Silver'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Annual
Height
36 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
7, 8, 9
Water
Moderate
Humidity
Moderate
Lifespan
Perennial in mild climates, annual elsewhere
Native To
Mediterranean region
Toxicity
Non-toxic
The Story
Plant Bio
Costa Silver is a biennial or short-lived perennial that produces clusters of delicate silvery-white flowers atop sturdy stems. The foliage is lush and green, adding to its ornamental value. This cultivar is notable for its unique silver-colored flowers, which set it apart from other Antirrhinum majus cultivars that typically feature brighter colors.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Water regularly to keep soil evenly moist but not waterlogged.
- Provide full sun for optimal flowering and growth.
- Fertilize monthly with a balanced, water-soluble fertilizer.
- Pinch back early growth to encourage bushier plants.
- Deadhead spent flowers to prolong blooming period.
Pro Tip
Sow seeds indoors 6–8 weeks before the last frost for earlier blooms outdoors.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Provide full sun for vibrant flowers
- Pinch back stems to promote bushiness
- Apply fertilizer monthly during active growth
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t neglect deadheading spent flowers
- Avoid planting in overly shaded areas
- Don’t let soil dry out completely
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Pinch | ||||||||||||
| Plant | ||||||||||||
| Stake |
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
Costa Silver Snapdragon questions
What zones can Costa Silver Snapdragon grow in?
Costa Silver Snapdragon is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Costa Silver Snapdragon deer resistant?
Not reliably. Deer may browse Costa Silver Snapdragon, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Costa Silver Snapdragon bloom?
Costa Silver Snapdragon typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Costa Silver Snapdragon need full sun?
Costa Silver Snapdragon does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Antirrhinum to compare
Double Azalea Bronze Snapdragons
Antirrhinum majus 'Double Azalea Bronze'
Snapdragon 'Chantilly Peach'
Antirrhinum majus 'Chantilly Peach'
Chantilly Pink Snapdragon
Antirrhinum majus 'Chantilly Pink'
Costa Apricot Snapdragon
Antirrhinum majus 'Costa Apricot'
Chantilly Purple Snapdragon
Antirrhinum majus 'Chantilly Purple'
Double Azalea Red Snapdragon
Antirrhinum majus 'Double Azalea Red'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Costa Silver Snapdragon 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.
