When to Plant Zinnia in Eagle River, Wisconsin (54521)
Location
Eagle River, Wisconsin
ZIP Code
54521
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
๐ Planting Calendar
Pro Tip: Sow Zinnia directly outdoors 1 week after your last frost date โ it needs warm soil.
๐ฟ Plant Details
โ๏ธ Growing Requirements
โ๏ธ
Sun
Full Sun (6-8 hours)
๐ง
Water
Moderate (1 inch/week)
โ๏ธ
Spacing
12" apart
๐ฑ
Planting Depth
0.25" deep
Seeds typically germinate in 5-10 days
Ready to Plant Zinnia in Eagle River?
Get your seeds now so they're ready by Tuesday, May 12, 2026.
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Other Plants for Eagle River
Growing Zinnia in Zone 4b
Zinnia (Zinnia elegans) is a popular garden vegetable. In Eagle River, Wisconsin, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, May 12, 2026.
Your average last frost date is Tuesday, May 5, 2026. Zinnia grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.