Blog

When to plant Broccoli in Nice, CA

For Nice, gardeners: plant Broccoli February 9 through March 2 once soil reads 50°F. A second sowing from October 2 to October 16 extends the harvest into fall.

When to Plant Broccoli in Nice, CA

Broccoli
Lake County, California Zone 9a July

July in the garden — Lake County, California

A quick July briefing for Lake County, California gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 2
Avg. first frost November 27
Soil temp (4") 89°F
Watering Critical
Pest pressure High
Daylight 14.5 hrs

Instant PDF download. No spam, unsubscribe any time.

Broccoli is a nutrient-dense cool-season crop that produces large central heads followed by smaller side shoots. It is one of the most popular garden vegetables.

Nice, California is in USDA Zone 9a. The average last spring frost is March 2 and the first fall frost is November 27, giving you a growing season of approximately 270 days.

At an elevation of 154 feet, Lake County receives approximately 30.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 83°F, so choose short-season varieties of Broccoli to ensure they mature before fall. Sandy soil warms quickly in spring — great for early planting — but Broccoli will need more frequent watering and organic matter to retain nutrients.

Nice, CA (Zone 9a) Year-round
270 days
Last Spring Frost March 2
270 growing days
First Fall Frost November 27

Nice Soil Profile

Soil Type

Sandy Loam

Soil pH

6.1-6.9

Drainage

Well Drained

Broccoli Planting Risk Windows

Early Start (70% safe) ✓ Fits season (173 days to spare)
Start indoors: Jan 17 Transplant: Feb 14 🍅 Harvest: Apr 18 – May 30
Recommended (50%) ✓ Fits season (165 days to spare)
Start indoors: Feb 2 Transplant: Mar 2 🍅 Harvest: May 4 – Jun 15
Safe Start (90%) ✓ Fits season (136 days to spare)
Start indoors: Mar 20 Transplant: Apr 17 🍅 Harvest: Jun 19 – Jul 31

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Nice

How your county's soil matches Broccoli's growing requirements.

Soil pH

Your soil pH (6.1–6.9) is within Broccoli's preferred range (6.0–7.0).

Soil Texture

Sandy soil in Lake County warms quickly in spring but drains fast. Broccoli will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Broccoli.

How to Plant Broccoli

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Broccoli

5
successive plantings in your 270-day season

Sow every 6.9 weeks. Last sowing by Aug 29 to harvest before frost.

For a dedicated fall crop, sow by Oct 02.

Broccoli Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,267 gal / 100 sq ft

Monthly Watering Guide for Broccoli

Broccoli needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Broccoli Needs Rainfall You Supplement Action
Jan 6.2" 0" ❄️ Dormant
Feb 6.5" 0" ❄️ Dormant
Mar 4.3" 4.6" 0" ✅ Rainfall sufficient
Apr 4.3" 2.7" 1.6" 💧 Light watering
May 4.3" 0.8" 3.5" 🚿 Regular watering
Jun 4.3" 0.2" 4.1" 🚿 Regular watering
Jul 4.3" 0" 4.3" 🚿 Regular watering
Aug 4.3" 0" 4.3" 🚿 Regular watering
Sep 4.3" 0.3" 4" 🚿 Regular watering
Oct 4.3" 1.1" 3.2" 🚿 Regular watering
Nov 4.3" 3" 1.3" 💧 Light watering
Dec 5.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lake County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Broccoli Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Broccoli needs ~919 GDD — county provides 3,307 GDD Excellent fit

Broccoli Planting Timeline — Nice, CA

Broccoli Planting Calendar

Activity When Date Range
Start Indoors February 2 Feb 2 – Feb 16
Transplant Outdoors March 2 Mar 2 – Mar 16
Direct Sow February 9 Feb 9 – Mar 2
Harvest May 4 May 4 – Jun 15
Fall Sowing October 2 Oct 2 – Oct 16

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April
May Harvest
June Harvest
July
August
September
October Fall Sowing
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

270 days in Lake County

Growing Tips for Broccoli in Nice

Direct sow Broccoli outdoors after March 02 in Lake County when soil has warmed and frost danger has passed.

Sandy soil in Lake County dries quickly — mulch Broccoli with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Broccoli in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Provide consistent moisture to prevent hollow stems. Harvest heads before yellow flowers appear.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Broccoli Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Allow plants to flower 2nd year; collect dry pods.
Storage Store airtight; viable 5 years at 35°F, under 50% humidity.

Isolate 1/2 mile from other brassicas. Biennial — must overwinter roots.

When should I plant Broccoli in Nice, CA?

In Nice, CA, plant Broccoli after the last frost (around March 2) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Nice, CA for Broccoli?

Nice sits in USDA Zone 9a. Broccoli grows reliably in zones 2a through 11b, so it's a good fit here.

Can Broccoli grow in Nice's climate?

Yes — Broccoli grows well in Nice's temperate climate. Nice averages a 270-day frost-free season, with last frost around March 2 and first frost around November 27.

🌱

Your Lake County Garden Planner — Free

A 22-page printable planner built for Lake County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lake County, CA. Local conditions may vary. Last updated: July 2026.