Zone 9 · Squash Growing Guide

When to Plant Zucchini / Courgette
in Zone 9

The classic overproducer. Two plants feed a family — three and you'll be leaving bags on neighbours' doorsteps. Plant in hills with lots of compost.

Plant outdoors
Feb 15 – Apr 1
Start indoors
Direct sow
Last Frost
~Jan 31
Days to harvest
45–60 days
Difficulty
Easy
Ready to harvest — Zone 9
Harvest window: Apr – Jun, Oct – Dec

Planting Calendar

In Zone 9, Zucchini / Courgette should be planted outdoors Feb 15 – Apr 1, after the average last frost date of approximately Jan 31.

Spring and fall crops work well. Direct sow both times. Summer heat reduces production.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
High
Spacing
24–36 inches
Soil
Rich, well-draining, compost-amended
Days to maturity
45–60 days
Soil pH
6.0–7.5
plant tip · Zone 9

Spring and fall crops work well. Direct sow both times. Summer heat reduces production.

Feeding Schedule

How often
every 3 weeks
Feed type
balanced (10-10-10)
Key timing
at planting and monthly

Heavy feeder — add generous compost at planting. Avoid excess nitrogen once flowering or you'll get lots of leaf and few fruit.

Succession Planting

Sow every 4 weeks

Sow a second batch 4 weeks after the first. Zucchini plants tire and become disease-prone by late summer — a second sowing gives you fresh, productive plants for the autumn harvest.

Companion Planting for Zucchini / Courgette

What you plant next to zucchini / courgette makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Beans
  • Corn
  • Nasturtiums
  • Marigolds
Keep away from
  • Potatoes
  • Brassicas
  • Fennel

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Common questions

In Zone 9, direct sow zucchini / courgette outdoors Feb 15 – Apr 1 after your last frost date of approximately Jan 31. Spring and fall crops work well. Direct sow both times. Summer heat reduces production.
Zone 9 has an average last spring frost of approximately Jan 31 and a first fall frost around Dec 15. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for zucchini / courgette include Beans, Corn, Nasturtiums, Marigolds. Avoid planting near Potatoes, Brassicas, Fennel, which can compete for nutrients or attract pests.
Zucchini / Courgette typically takes 45–60 days from transplant or direct sow to harvest in Zone 9. Expected harvest window: Apr – Jun, Oct – Dec.

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Zucchini / Courgette in other zones
Crop Guides