Blog

When to plant Yarrow in Citrus County, FL

Citrus County's climate puts the Yarrow spring window between January 31 and February 21. aim for a steady week of warm soil before planting.

When to Plant Yarrow in Citrus County, FL

Citrus County, Florida Zone 9a July

This month in Citrus County, Florida

July is a pivotal month for Citrus County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 14
Avg. first frost December 2
Soil temp (4") 93°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Pick 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

Instant PDF download. No spam, unsubscribe any time.

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.

Citrus County, Florida is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 2, giving you a growing season of approximately 291 days.

At an elevation of 423 feet, Citrus County receives approximately 55.9 inches of rainfall annually with predominantly sand soil. Summer highs average 98°F, so Yarrow may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Yarrow will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Yarrow root diseases.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting Fragrant
Citrus County, FL (Zone 9a) Year-round
291 days
Last Spring Frost February 14
291 growing days
First Fall Frost December 2

Citrus County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.2

Drainage

Well Drained

Yarrow Planting Risk Windows

Early Start (70% safe) ✓ Fits season (112 days to spare)
Start indoors: Dec 9 Transplant: Jan 20 🌸 Bloom: Mar 17 – Aug 4
Recommended (50%) ✓ Fits season (109 days to spare)
Start indoors: Dec 20 Transplant: Jan 31 🌸 Bloom: Mar 28 – Aug 15
Safe Start (90%) ✓ Fits season (101 days to spare)
Start indoors: Jan 18 Transplant: Mar 1 🌸 Bloom: Apr 26 – Sep 13

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 Citrus County

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

Soil pH

Your soil pH (5.2–6.2) overlaps with Yarrow's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Yarrow.

How to Plant Yarrow

18"
Between Plants
24"
Between Rows

Succession Planting Yarrow

5
successive plantings in your 291-day season

Sow every 6.9 weeks. Last sowing by Sep 03 to harvest before frost.

Yarrow Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 2.9" 0" ❄️ Dormant
Feb 2.2" 3.3" 0" ✅ Rainfall sufficient
Mar 2.2" 2.9" 0" ✅ Rainfall sufficient
Apr 2.2" 2.9" 0" ✅ Rainfall sufficient
May 2.2" 4" 0" ✅ Rainfall sufficient
Jun 2.2" 7.8" 0" ✅ Rainfall sufficient
Jul 2.2" 7.2" 0" ✅ Rainfall sufficient
Aug 2.2" 8.3" 0" ✅ Rainfall sufficient
Sep 2.2" 7.5" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 2" 0.2" 💧 Light watering
Dec 2.2" 2.5" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Citrus 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 ~1,762 GDD — county provides 6,862 GDD Excellent fit

Yarrow Planting Timeline — Citrus County, FL

Yarrow Planting Calendar

Activity When Date Range
Start Indoors December 20 Dec 20 – Jan 3
Transplant Outdoors January 31 Jan 31 – Feb 14
Direct Sow January 31 Jan 31 – Feb 21
Bloom March 28 Mar 28 – Aug 15

· 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

291 days in Citrus County

Growing Tips for Yarrow in Citrus County

Direct sow Yarrow outdoors after February 14 in Citrus County when soil has warmed and frost danger has passed.

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

With summer highs reaching 98°F in Citrus 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.

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 →

Frequently Asked Questions

When should I plant Yarrow in Citrus County, FL?

Citrus County is in Zone 9a with an average last frost of February 14. Plan your Yarrow planting based on this frost date — see the calendar above for exact timing.

What planting zone is Citrus County, FL?

Citrus County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 14 and first fall frost is December 2.

When should I plant Yarrow in Citrus County, FL?

In Citrus County, FL, plant Yarrow after the last frost (around February 14) and before the first frost (around December 2). Best results when soil holds above 50°F.

What growing zone is Citrus County, FL for Yarrow?

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

Can Yarrow grow in Citrus County's climate?

Yes — Yarrow grows well in Citrus County's temperate climate. Citrus County averages a 292-day frost-free season, with last frost around February 14 and first frost around December 2.

🌱

Your Citrus County Garden Planner — Free

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.