When to Plant Brussel Sprout in Nine Mile Falls, Washington (99026)
Location
Nine Mile Falls, Washington
ZIP Code
99026
USDA Zone
6b
Last Frost
Wednesday, April 15, 2026
📅 Planting Calendar
Direct Sow Outdoors Wednesday, March 4, 2026
Pro Tip: Brussel Sprout can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Brassica oleracea
Days to Maturity 84 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
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Growing Brussel Sprout in Zone 6b
Brussel Sprout (Brassica oleracea) is a popular garden vegetable. In Nine Mile Falls, Washington, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 4, 2026.
Your average last frost date is Wednesday, April 15, 2026. Brussel Sprout grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.