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When to plant Mint in Applegate, CA

In Applegate, Mint is a single-season spring crop — there's no second fall window. Plant April 29–May 13 for an 60–90-day harvest, finishing well before the November 9 first frost.

When to Plant Mint in Applegate, CA

Mint
Placer County, California Zone 9b August

Your August planting checklist for Placer County, California

Your garden in Placer County, California is working on a schedule, even when you're not. Here's where you should be this August.

Avg. last frost April 22
Avg. first frost November 9
Soil temp (4") 89°F
Watering Critical
Pest pressure High
Daylight 13.5 hrs
  1. It's harvest week for mint

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Looking ahead to September
  • First harvests: mint

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Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.

Applegate, California is in USDA Zone 9b. The average last spring frost is April 22 and the first fall frost is November 9, giving you a growing season of approximately 201 days.

At an elevation of 651 feet, Placer County receives approximately 25.3 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Mint during the growing season.

Applegate, CA (Zone 9b) Long season
201 days
Last Spring Frost April 22
201 growing days
First Fall Frost November 9

Applegate Soil Profile

Soil Type

Loam

Soil pH

6.6-7.2

Drainage

Well Drained

Mint Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 23 – Sep 1
Recommended (50%) ✓ Fits season (61 days to spare)
Transplant: Apr 29 🍅 Harvest: Jul 1 – Sep 9
Safe Start (90%) ✓ Fits season (55 days to spare)
Transplant: Jun 4 🍅 Harvest: Aug 6 – Oct 15

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 Applegate

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

Soil pH

Your soil pH (6.6–7.2) overlaps with Mint's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Mint is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Mint.

How to Plant Mint

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Mint

3
successive plantings in your 201-day season

Sow every 6.9 weeks. Last sowing by Aug 11 to harvest before frost.

Mint Water Budget

Plant needs
0.7″/week
Rainfall provides
0.5″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 819 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Mint

Mint needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Mint Needs Rainfall You Supplement Action
Jan 5.2" 0" ❄️ Dormant
Feb 5.3" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 3" 1.7" 1.3" 💧 Light watering
May 3" 0.7" 2.3" 🚿 Regular watering
Jun 3" 0.1" 2.9" 🚿 Regular watering
Jul 3" 0" 3" 🚿 Regular watering
Aug 3" 0" 3" 🚿 Regular watering
Sep 3" 0.2" 2.8" 🚿 Regular watering
Oct 3" 1.1" 1.9" 🚿 Regular watering
Nov 3" 2.4" 0.6" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

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

Mint 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.

Mint needs ~1,031 GDD — county provides 2,763 GDD Excellent fit

Mint Planting Timeline — Applegate, CA

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors April 29 Apr 29 – May 13
Harvest July 1 Jul 1 – Sep 9

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · 1-2 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

201 days in Placer County

Growing Tips for Mint in Applegate

Direct sow Mint outdoors after April 22 in Placer County when soil has warmed and frost danger has passed.

General growing tips

Always grow mint in containers or with underground barriers to control spreading. Harvest regularly to keep plants compact. Cut plants back in late summer for a fresh fall flush.

Companion Planting

Good Companions

Avoid Planting Near

  • Parsley

Check more plant combinations with our Companion Planting Checker →

When should I plant Mint in Applegate, CA?

In Applegate, CA, plant Mint after the last frost (around April 22) and before the first frost (around November 9). Best results when soil holds above 50°F.

What growing zone is Applegate, CA for Mint?

Applegate sits in USDA Zone 9b. Mint grows reliably in zones 3a through 10b, so it's a good fit here.

Can Mint grow in Applegate's climate?

Yes — Mint grows well in Applegate's temperate climate. Applegate averages a 201-day frost-free season, with last frost around April 22 and first frost around November 9.

🌱

Your Placer County Garden Planner — Free

A 22-page printable planner built for Placer 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 Placer County, CA. Local conditions may vary. Last updated: August 2026.