Cascade Blue
Planting Schedule
A cascade of velvety, sky-blue blooms spills over the edge with a soft, luminous glow—each flower marked by a deeper, velvety throat that draws the eye from every angle. The trailing, spreading habit forms a lush mound of color in about 70 days, with abundant blossoms that feel plush in the garden and photograph beautifully from morning light to dusk. Ideal for containers and hanging displays, Cascade Blue delivers nonstop floral presence and a refined, cool-toned palette that turns balconies into living bouquets.
Crop Dates
| Milestone | Date |
|---|---|
| Last Frost | Jun 1st |
| Growing Approach | Protected Environment Only |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 70 |
| Sun Requirements | Full Sun |
| Growth Habit | Spreading |
| Support Needed | None |
| Planting Depth | Surface |
| Germination Temp (°F) | 75 |
| Min Soil Temp (°F) | 60 |
| Min Night Temp (°F) | 50 |
| Harden Off (days) | 7 |
Today's Conditions
Wait until soil reaches at least 60°F before transplanting Cascade Blue.
Garden Alerts
Zone 1b has only 61 frost-free days — shorter than this crop's 70-day maturity. Outdoor planting is not viable; use protected cultivation.
Frequently Asked Questions
What pest or disease most often affects Petunia × atkinsiana (Cascade Blue), and how can I treat it?
How often should I water Petunia × atkinsiana during peak growth in summer?
How do I know when Cascade Blue (Petunia × atkinsiana) is ready to harvest or finish for the season?
A cascade of velvety, sky-blue blooms spills over the edge with a soft, luminous glow—each flower marked by a deeper, velvety throat that draws the eye from every angle. The trailing, spreading habit forms a lush mound of color in about 70 days, with abundant blossoms that feel plush in the garden and photograph beautifully from morning light to dusk. Ideal for containers and hanging displays, Cascade Blue delivers nonstop floral presence and a refined, cool-toned palette that turns balconies into living bouquets.
Today's Conditions
Wait until soil reaches at least 60°F before transplanting Cascade Blue.
Garden Alerts
Zone 1b has only 61 frost-free days — shorter than this crop's 70-day maturity. Outdoor planting is not viable; use protected cultivation.
Sowing Tips
Soil Temperature
Direct sow or transplant when soil at planting depth holds 60°F for reliable germination and early growth.
Expert Note
Start petunias indoors early, then transplant only after nights are consistently warm (petunias hate cold) and keep containers evenly moist but not waterlogged.