When should I plant Spine Gourd in Zone 9a?

Start Spine Gourd seeds indoors around Feb 20. Transplant outdoors after Apr 3. Expect first harvest around Jul 2.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Can I grow Spine Gourd in Zone 9a?

Yes. Spine Gourd needs 55 days to harvest. Zone 9a has a 237-day growing season, which is sufficient.

Growing Spine Gourd in Zone 9a

Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Spine Gourd. Last frost: Mar 20. First frost: Nov 12.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 20Nov 12

Season: Mar 20 – Nov 12 (237 days)

Zone9a

Last FrostMar 20

First FrostNov 12

Season Length237 days

Days to Harvest55

SunFull Sun

Frost ToleranceNone

Spacing2/sqft (6-8" apart)

When to Plant Spine Gourd in Zone 9a

Start Seeds Indoors: Feb 20

Start Spine Gourd seeds indoors around Feb 20 (4 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 7–14 days.

Transplant Outdoors: Apr 3

Transplant Spine Gourd seedlings outdoors after Apr 3. Wait until soil temperature reaches 65°F. Space plants at 2/sqft (6-8" apart). Harden off plants for a week before moving outside.

Harvest: Jul 2

First harvest approximately Jul 2 (~90 days from transplant). Continue harvesting until first frost (Nov 12).

Spine Gourd in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Spine Gourd Garden

Track Spine Gourd from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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