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When to Plant Morning Glory in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

๐Ÿ“… Planting Calendar

Direct Sow Outdoors Thursday, January 15, 2026

Pro Tip: Sow Morning Glory directly outdoors 2 weeks after your last frost date โ€” it needs warm soil.

๐ŸŒฟ Plant Details

Scientific Name Ipomoea purpurea
Days to Maturity 65 days
Mature Height 72-120"
Spread 12"

โ˜€๏ธ Growing Requirements

โ˜€๏ธ

Sun

Full Sun (6-8 hours)

๐Ÿ’ง

Water

Low to Moderate

โ†”๏ธ

Spacing

12" apart

๐ŸŒฑ

Planting Depth

0.5" deep

Seeds typically germinate in 5-10 days

Ready to Plant Morning Glory in Haiku?

Get your seeds now so they're ready by Thursday, January 15, 2026.

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๐Ÿค Good Companions

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Growing Morning Glory in Zone 12a

Morning Glory (Ipomoea purpurea) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should direct sow seeds around Thursday, January 15, 2026.

Your average last frost date is Thursday, January 1, 2026. Morning Glory grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.