When to Plant Sweet Potato in Tucson, Arizona (85708)
Location
Tucson, Arizona
ZIP Code
85708
USDA Zone
9b
Last Frost
Wednesday, February 10, 2027
📅 Planting Calendar
Direct Sow Outdoors Wednesday, December 30, 2026
Pro Tip: Sweet Potato can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Ipomoea batatas
Days to Maturity 100 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 7-14 days
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Growing Sweet Potato in Zone 9b
Sweet Potato (Ipomoea batatas) is a popular garden vegetable. In Tucson, Arizona, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Wednesday, December 30, 2026.
Your average last frost date is Wednesday, February 10, 2027. Sweet Potato grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.