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When to plant Yarrow in Five Points, CA

In Five Points, plant Yarrow in spring between February 9 and March 2, once soil temps hold above 50°F. Five Points's last frost averages March 2, so aim for a steady week of warm soil before planting. For a fall crop, sow between and — roughly 60–90 days before the first frost on November 23.

When to Plant Yarrow in Five Points, CA

Fresno County, California Zone 9b July

Your July planting checklist for Fresno County, California

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

Avg. last frost March 2
Avg. first frost November 23
Soil temp (4") 91°F
Watering Critical
Pest pressure High
Daylight 14.3 hrs
  1. Bring in the yarrow

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Before August arrives, get these ready
  • First harvests: yarrow

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Achillea millefolium (Yarrow) is a tough, drought-tolerant native perennial with aromatic finely-divided foliage and broad flat-topped flower clusters that serve as a landing platform for hundreds of beneficial insect species. Available in white (the species type) and a wide range of cultivars spanning yellow, gold, pink, salmon, and deep red. Spreads by rhizome to form ground-covering colonies; blooms from late spring through midsummer with reblooming into fall if deadheaded. Exceptional in hot, dry sites where other perennials fail.

Five Points, California is in USDA Zone 9b. The average last spring frost is March 2 and the first fall frost is November 23, giving you a growing season of approximately 266 days.

At an elevation of 2,276 feet, Fresno County receives approximately 14.9 inches of rainfall annually with predominantly loam soil. Summer highs average 100°F, so Yarrow may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Yarrow successfully. Mulch heavily to conserve soil moisture.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting Fragrant
Five Points, CA (Zone 9b) Long season
266 days
Last Spring Frost March 2
266 growing days
First Fall Frost November 23

Five Points Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Yarrow Planting Risk Windows

Early Start (70% safe) ✓ Fits season (99 days to spare)
Start indoors: Dec 22 Transplant: Feb 2 🌸 Bloom: Mar 30 – Aug 3
Recommended (50%) ✓ Fits season (98 days to spare)
Start indoors: Jan 5 Transplant: Feb 16 🌸 Bloom: Apr 13 – Aug 17
Safe Start (90%) ✓ Fits season (50 days to spare)
Start indoors: Mar 16 Transplant: Apr 27 🌸 Bloom: Jun 22 – Oct 26

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 Five Points

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

Soil pH

Your soil pH (6.5–7.5) overlaps with Yarrow's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Yarrow.

How to Plant Yarrow

18"
Between Plants
24"
Between Rows

Succession Planting Yarrow

5
successive plantings in your 266-day season

Sow every 6.9 weeks. Last sowing by Aug 25 to harvest before frost.

Yarrow Water Budget

Plant needs
0.5″/week
Rainfall provides
0.2″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 752 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Yarrow

Yarrow needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Yarrow Needs Rainfall You Supplement Action
Jan 2.8" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 2.2" 2.3" 0" ✅ Rainfall sufficient
Apr 2.2" 1" 1.2" 🚿 Regular watering
May 2.2" 0.4" 1.8" 🚿 Regular watering
Jun 2.2" 0.1" 2.1" 🚿 Regular watering
Jul 2.2" 0" 2.2" 🚿 Regular watering
Aug 2.2" 0" 2.2" 🚿 Regular watering
Sep 2.2" 0.2" 2" 🚿 Regular watering
Oct 2.2" 0.6" 1.6" 🚿 Regular watering
Nov 2.2" 1.3" 0.9" 💧 Light watering
Dec 2.8" 0" ❄️ Dormant

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

Yarrow 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.

Yarrow needs ~1,875 GDD — county provides 6,650 GDD Excellent fit

Yarrow Planting Timeline — Five Points, CA

Yarrow Planting Calendar

Activity When Date Range
Start Indoors January 5 Jan 5 – Jan 19
Transplant Outdoors February 16 Feb 16 – Mar 2
Direct Sow February 9 Feb 9 – Mar 2
Bloom April 13 Apr 13 – Aug 17

· 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · 1-2 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

266 days in Fresno County

Growing Tips for Yarrow in Five Points

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

With summer highs reaching 100°F in Fresno County, provide afternoon shade for Yarrow and water deeply in the morning.

Common pests for Yarrow in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

Fresno County receives only 15" of rain annually. Yarrow needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 8–10 weeks before last frost; seeds need light for germination — press onto soil surface, do not cover. Direct sow after last frost or divide established clumps in spring or fall. Thrives in poor, well-drained soil — rich soil and high fertility cause floppy stems and reduce flower count. Avoid overwatering; excellent drought tolerance once established. Deadhead spent clusters to encourage rebloom. Divide every 2–3 years to prevent center die-out and control spread. Year 2+ plants bloom most heavily; first-year plants may produce limited flowers. Dried flowers retain color well for arrangements.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

When should I plant Yarrow in Five Points, CA?

In Five Points, CA, plant Yarrow after the last frost (around March 2) and before the first frost (around November 23). Best results when soil holds above 50°F.

What growing zone is Five Points, CA for Yarrow?

Five Points sits in USDA Zone 9b. Yarrow grows reliably in zones 3a through 9b, so it's a good fit here.

Can Yarrow grow in Five Points's climate?

Yes — Yarrow grows well in Five Points's temperate climate. Five Points averages a 266-day frost-free season, with last frost around March 2 and first frost around November 23.

🌱

Your Fresno County Garden Planner — Free

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