When to Plant Borage in Girdwood, Alaska (99587)
Location
Girdwood, Alaska
ZIP Code
99587
USDA Zone
5b
Last Frost
Saturday, April 25, 2026
๐ Planting Calendar
Pro Tip: Sow Borage 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 to Partial Shade
๐ง
Water
Moderate
โ๏ธ
Spacing
18" apart
๐ฑ
Planting Depth
0.5" deep
Seeds typically germinate in 7-14 days
Ready to Plant Borage in Girdwood?
Get your seeds now so they're ready by Saturday, May 2, 2026.
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๐ค Good Companions
โ ๏ธ Avoid Planting Near
Other Plants for Girdwood
Growing Borage in Zone 5b
Borage (Borago officinalis) is a popular garden vegetable. In Girdwood, Alaska, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, May 2, 2026.
Your average last frost date is Saturday, April 25, 2026. Borage grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.