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When to plant Celery in Pinecrest, CA

Celery planted in Pinecrest between April 4 and April 25 matures in 80–120 days — well before the October 27 first frost. A second sowing from September 1 to September 15 extends the harvest into fall.

When to Plant Celery in Pinecrest, CA

Celery
Tuolumne County, California Zone 9b June

What to do in June

Here's what deserves your attention in Tuolumne County, California this month. Everything below is tailored to Zone 9b and timed around your local frost dates.

Avg. last frost April 25
Avg. first frost October 27
Soil temp (4") 70°F
Watering Critical
Pest pressure High
Daylight 14.6 hrs
Looking ahead to July
  • First harvests: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Pinecrest, California is in USDA Zone 9b. The average last spring frost is April 25 and the first fall frost is October 27, giving you a growing season of approximately 185 days.

At an elevation of 2,990 feet, Tuolumne County receives approximately 37.7 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Celery during the growing season.

Pinecrest, CA (Zone 9b) Moderate season
185 days
Last Spring Frost April 25
185 growing days
First Fall Frost October 27

Pinecrest Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Celery Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Start indoors: Mar 17 Transplant: Apr 14 🍅 Harvest: Jul 7 – Sep 1
Recommended (50%) ✓ Fits season (45 days to spare)
Start indoors: Mar 28 Transplant: Apr 25 🍅 Harvest: Jul 18 – Sep 12
Safe Start (90%) ✓ Fits season (10 days to spare)
Start indoors: May 23 Transplant: Jun 20 🍅 Harvest: Sep 12 – Nov 7

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 Pinecrest

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

Soil pH

Your soil pH (6.6–7.5) is more alkaline than Celery prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Tuolumne County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Celery.

How to Plant Celery

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 Celery

2
successive plantings in your 185-day season

Sow every 9.1 weeks. Last sowing by Jun 29 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Celery Water Budget

Plant needs
1.3″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 877 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 7.8" 0" ❄️ Dormant
Feb 8.2" 0" ❄️ Dormant
Mar 6.7" 0" ❄️ Dormant
Apr 5.6" 2.8" 2.8" 🚿 Regular watering
May 5.6" 1.1" 4.5" 🚿 Regular watering
Jun 5.6" 0.2" 5.4" 🚿 Regular watering
Jul 5.6" 0" 5.6" 🚿 Regular watering
Aug 5.6" 0" 5.6" 🚿 Regular watering
Sep 5.6" 0.4" 5.2" 🚿 Regular watering
Oct 5.6" 1.5" 4.1" 🚿 Regular watering
Nov 3" 0" ❄️ Dormant
Dec 6.1" 0" ❄️ Dormant

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

Celery 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.

Celery needs ~1,600 GDD — county provides 2,960 GDD Excellent fit

Celery Planting Timeline — Pinecrest, CA

Celery Planting Calendar

Activity When Date Range
Start Indoors March 28 Mar 28 – Apr 11
Transplant Outdoors April 25 Apr 25 – May 9
Direct Sow April 4 Apr 4 – Apr 25
Harvest July 18 Jul 18 – Sep 12
Fall Sowing September 1 Sep 1 – Sep 15

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 1-2 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

185 days in Tuolumne County

Growing Tips for Celery in Pinecrest

Direct sow Celery outdoors after April 25 in Tuolumne County when soil has warmed and frost danger has passed.

Common pests for Celery in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

When should I plant Celery in Pinecrest, CA?

In Pinecrest, CA, plant Celery after the last frost (around April 25) and before the first frost (around October 27). Best results when soil holds above 50°F.

What growing zone is Pinecrest, CA for Celery?

Pinecrest sits in USDA Zone 9b. Celery grows reliably in zones 2a through 10b, so it's a good fit here.

Can Celery grow in Pinecrest's climate?

Yes — Celery grows well in Pinecrest's temperate climate. Pinecrest averages a 185-day frost-free season, with last frost around April 25 and first frost around October 27.

🌱

Your Tuolumne County Garden Planner — Free

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

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