When to Plant Cosmos in Hannawa Falls, New York (13647)
Location
Hannawa Falls, New York
ZIP Code
13647
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
๐ Planting Calendar
Pro Tip: Sow Cosmos directly outdoors around your last frost date when soil starts to warm.
๐ฟ Plant Details
โ๏ธ Growing Requirements
โ๏ธ
Sun
Full Sun (6-8 hours)
๐ง
Water
Low-Moderate
โ๏ธ
Spacing
18" apart
๐ฑ
Planting Depth
0.25" deep
Seeds typically germinate in 7-14 days
Ready to Plant Cosmos in Hannawa Falls?
Get your seeds now so they're ready by Tuesday, May 5, 2026.
* Affiliate links โ we may earn a small commission at no extra cost to you.
๐ค Good Companions
Other Plants for Hannawa Falls
Growing Cosmos in Zone 4b
Cosmos (Cosmos bipinnatus) is a popular garden vegetable. In Hannawa Falls, New York, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, May 5, 2026.
Your average last frost date is Tuesday, May 5, 2026. Cosmos grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.