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Zucchini Growing Guide
Cucurbitaceae family
Companion Planting
Avoid Planting Near
PotatoesGrowth Stages
- Seedling
- Vining
- Flowering
- Fruiting / Harvest Ready
Planting Dates by Zone
| Zone | Start Indoors | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1a | Apr 27 | Jun 8 | Jun 8 | Jul 13 |
| Zone 1b | Apr 27 | Jun 8 | Jun 8 | Jul 13 |
| Zone 2a | Apr 17 | May 29 | May 29 | Jul 3 |
| Zone 2b | Apr 27 | Jun 8 | Jun 8 | Jul 13 |
| Zone 3a | Apr 24 | Jun 5 | Jun 5 | Jul 10 |
| Zone 3b | Apr 17 | May 29 | May 29 | Jul 3 |
| Zone 4a | Apr 7 | May 19 | May 19 | Jun 23 |
| Zone 4b | Apr 3 | May 15 | May 15 | Jun 19 |
| Zone 5a | Mar 31 | May 12 | May 12 | Jun 16 |
| Zone 5b | Mar 31 | May 12 | May 12 | Jun 16 |
| Zone 6a | Mar 31 | May 12 | May 12 | Jun 16 |
| Zone 6b | Mar 18 | Apr 29 | Apr 29 | Jun 3 |
| Zone 7a | Mar 18 | Apr 29 | Apr 29 | Jun 3 |
| Zone 7b | Mar 13 | Apr 24 | Apr 24 | May 29 |
| Zone 8a | Mar 8 | Apr 19 | Apr 19 | May 24 |
| Zone 8b | Feb 22 | Apr 5 | Apr 5 | May 10 |
| Zone 9a | Feb 20 | Apr 3 | Apr 3 | May 8 |
| Zone 9b | Feb 10 | Mar 24 | Mar 24 | Apr 28 |
| Zone 10a | Jan 23 | Mar 6 | Mar 6 | Apr 10 |
| Zone 10b | Dec 31 | Feb 11 | Feb 11 | Mar 18 |
| Zone 11a | Dec 31 | Feb 11 | Feb 11 | Mar 18 |
| Zone 11b | Dec 18 | Jan 29 | Jan 29 | Mar 5 |
| Zone 12a | Dec 4 | Jan 15 | Jan 15 | Feb 19 |
| Zone 12b | Dec 4 | Jan 15 | Jan 15 | Feb 19 |
| Zone 13a | Dec 4 | Jan 15 | Jan 15 | Feb 19 |
| Zone 13b | Dec 4 | Jan 15 | Jan 15 | Feb 19 |
Frequently Asked Questions
How long does it take to grow Zucchini?
Zucchini takes approximately 50 days from planting to harvest.
How much sun does Zucchini need?
Zucchini requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Zucchini?
Plant Zucchini at 1/sqft (12" apart) using square foot gardening spacing.
Can Zucchini survive frost?
Zucchini is frost-sensitive and should not be exposed to frost.
What are good companion plants for Zucchini?
Good companion plants for Zucchini include Corn, Beans, Nasturtiums, Phacelia. Avoid planting near Potatoes.
How long does Zucchini take to germinate?
Zucchini seeds germinate in 4-10 days at an optimal temperature of 85°F.
When should I start Zucchini seeds indoors?
Start Zucchini seeds indoors 4 weeks before your last frost date, then transplant 2 weeks after last frost.
Growing Tips
- One or two plants feeds a family all summer
- Harvest frequently; check plants every day during peak production
- Hand-pollinate if fruit is rotting at the blossom end without growing
Common Pests & Diseases
- Squash vine borer
- Squash bugs
- Powdery mildew
- Blossom end rot
Harvest Notes
Pick at 6-8 inches for best flavor and texture. Skin should be easily pierced with a fingernail. Mammoth zukes are good for bread and shredding.
Plan Your Zucchini Garden
Track Zucchini from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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