Also known as Snapdragon · 147 saves
Antirrhinum
Antirrhinum, the genus most gardeners know as snapdragon. We track 10 varieties; the ones most used by real gardeners.
The 10 most-saved Antirrhinum varieties
2 species of Antirrhinum
Each one is a parent of the varieties above.
Track your Antirrhinum in Sow
Save the Antirrhinum you grow and get care reminders timed to your zone.
How to grow Antirrhinum
Whats common across all Antirrhinum varieties in our catalog — drawn from the care records of the 10 most-grown of them.
The Antirrhinum year
- DeadheadMay–August90% of varieties
Remove spent flower spikes down to a set of healthy leaves to prolong blooming.
- Pinch TipsApril and May80% of varieties
Pinch growing tips when 6 inches tall to encourage bushier growth and more stems.
- PlantMarch and April60% of varieties
Plant transplants 2-4 weeks before last frost for spring bloom, or sow seeds in fall.
- StakeMay and June60% of varieties
Install stakes or netting early for tall varieties (38 inches)
- FertilizeApril–July50% of varieties
Apply balanced liquid fertilizer every 4-6 weeks during active growth.
- PruneJuly30% of varieties
Cut back by 1/3 after the main summer flush to rejuvenate
Do
- Water consistently to keep soil moist 🌱
- Deadhead spent flowers to promote continuous blooming
- Provide full sun for optimal flowering
- Water regularly to keep soil moist 🌱
- Use well-draining soil to prevent root rot
Avoid
- Avoid overwatering to prevent root rot ❌
- Avoid overwatering to prevent fungal diseases ❌
- Do not neglect deadheading to prolong flowering
- Avoid planting in heavy, waterlogged soil
What goes wrong with Antirrhinum
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Sticky residue and distorted leaves | Spray with insecticidal soap or neem oil |
| Spider Mites | Fine webbing and speckled leaves | Increase humidity and apply horticultural oil |
| Powdery Mildew | White powdery coating on leaves | Use organic sulfur or a baking soda solution |
| Root Rot | Wilting despite adequate watering | Improve drainage and reduce watering frequency |
| Botrytis (Gray Mold) | Gray fuzzy mold on flowers and stems | Improve air circulation and remove affected parts |
Making more Antirrhinum
Cuttings
- Take semi-hardwood cuttings in late summer.
- Dip cuttings in rooting hormone and plant in moist potting mix.
- Maintain high humidity and wait approximately 4-6 weeks for roots to develop.
Seed
- Sow seeds indoors 6-8 weeks before last frost, lightly covering with soil.
- Keep soil moist and maintain temperature around 65-70°F for germination.
- Transplant seedlings outdoors after danger of frost has passed, about 8 weeks later.
Antirrhinum questions
How many types of Antirrhinum are there?
The Sow catalog tracks 10 distinct Antirrhinum varieties. The most popular — ranked by 147 real gardeners — are shown first above.
What zones does Antirrhinum grow in?
Across its varieties, Antirrhinum covers USDA Zones 7–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Antirrhinum bloom?
Most Antirrhinum varieties bloom in mid-spring, spring to fall, spring to fall. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Antirrhinum 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.