When to Plant Cosmos in Old Ocean, Texas (77463)
Location
Old Ocean, Texas
ZIP Code
77463
USDA Zone
9b
Last Frost
Tuesday, February 10, 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 Old Ocean?
Get your seeds now so they're ready by Tuesday, February 10, 2026.
* Affiliate links โ we may earn a small commission at no extra cost to you.
๐ค Good Companions
Other Plants for Old Ocean
Growing Cosmos in Zone 9b
Cosmos (Cosmos bipinnatus) is a popular garden vegetable. In Old Ocean, Texas, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Tuesday, February 10, 2026.
Your average last frost date is Tuesday, February 10, 2026. Cosmos grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.