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When to plant Anemones in Jerome County, ID

Jerome County's short 147-day growing season means one Anemones planting between May 10 and May 24. No fall crop in Zone 6b.

When to Plant Anemones in Jerome County, ID

Jerome County, Idaho Zone 6b July

Your July game plan for Jerome County, Idaho

July rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Jerome County, Idaho.

Avg. last frost May 10
Avg. first frost October 4
Soil temp (4") 62°F
Watering Critical
Pest pressure High
Daylight 14.8 hrs
  1. Start harvesting anemones

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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Poppy anemones (Anemone coronaria) produce vivid, poppy-like flowers with striking black centers, in shades of red, blue, purple, white, and bicolor. A cool-season cut flower favorite, they thrive in the mild overlap between winter's end and summer's arrival. In mild-winter zones (7+), fall planting yields a spectacular mid-spring bloom flush that florists prize. In colder zones, spring planting produces summer flowers. The 'Meron' and 'Moissonnier' series dominate commercial cut flower production; 'De Caen' and 'St. Brigid' are standard home garden strains.

Jerome County, Idaho is in USDA Zone 6b. The average last spring frost is May 10 and the first fall frost is October 4, giving you a growing season of approximately 147 days.

At an elevation of 6,306 feet, Jerome County receives approximately 13.5 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Anemones during the growing season. With low rainfall, drip irrigation is essential for growing Anemones successfully. Mulch heavily to conserve soil moisture.

Bulb Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Jerome County, ID (Zone 6b) Short season
147 days
Last Spring Frost May 10
147 growing days
First Fall Frost October 4

Jerome County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.9

Drainage

Well Drained

Anemones Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Start indoors: Apr 3 Transplant: May 1 🌸 Bloom: May 29 – Jun 26
Recommended (50%) ✓ Fits season (91 days to spare)
Start indoors: Apr 12 Transplant: May 10 🌸 Bloom: Jun 7 – Jul 5
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: May 7 Transplant: Jun 4 🌸 Bloom: Jul 2 – Jul 30

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 Jerome County

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

Soil pH

Your soil pH (6.8–7.9) is more alkaline than Anemones prefers (5.5–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Anemones

3"
Planting Depth
5"
Between Plants
6"
Between Rows

Anemones Water Budget

Plant needs
1.0″/week
Rainfall provides
0.4″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 964 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Anemones

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

Month Anemones Needs Rainfall You Supplement Action
Jan 1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.3" 0" ❄️ Dormant
Apr 1.6" 0" ❄️ Dormant
May 4.3" 1.5" 2.8" 🚿 Regular watering
Jun 4.3" 1" 3.3" 🚿 Regular watering
Jul 4.3" 1.2" 3.1" 🚿 Regular watering
Aug 4.3" 1.3" 3" 🚿 Regular watering
Sep 4.3" 1.1" 3.2" 🚿 Regular watering
Oct 4.3" 1.1" 3.2" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

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

Anemones 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.

Anemones needs ~1,444 GDD — county provides 2,021 GDD Excellent fit

Anemones Planting Timeline — Jerome County, ID

Anemones Planting Calendar

Activity When Date Range
Start Indoors April 12 Apr 12 – Apr 26
Transplant Outdoors May 10 May 10 – May 24
Bloom June 7 Jun 7 – Jul 5

Plant 3" deep · 5" apart · Rows 6" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

147 days in Jerome County

Growing Tips for Anemones in Jerome County

Direct sow Anemones outdoors after May 10 in Jerome County when soil has warmed and frost danger has passed.

Jerome County receives only 14" of rain annually. Anemones needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Soak corms in tepid water for 2–4 hours before planting to rehydrate them. Plant 2–3 inches deep with the flat or rough side down (corms are irregular). Space 4–6 inches apart. Anemones are cool-season plants — they need cool temperatures to set buds; summer heat causes dormancy. In zones 7+, fall planting allows corms to root through winter and bloom in March–April. In zones 5–6, start corms indoors 4 weeks before last frost, then transplant after danger of hard freeze passes. In zones 9–10b, plant from October through January for a succession of blooms. After bloom, allow foliage to die back; corms can be lifted, dried, and stored in a cool, dry place through summer.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Anemones in Jerome County, ID?

Jerome County is in Zone 6b with an average last frost of May 10. Plan your Anemones planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jerome County, ID?

Jerome County, Idaho is in USDA Hardiness Zone 6b. The average last spring frost is May 10 and first fall frost is October 4.

When should I plant Anemones in Jerome County, ID?

In Jerome County, ID, plant Anemones after the last frost (around May 10) and before the first frost (around October 4). Best results when soil holds above 50°F.

What growing zone is Jerome County, ID for Anemones?

Jerome County sits in USDA Zone 6b. Anemones grows reliably in zones 5a through 10b, so it's a good fit here.

Can Anemones grow in Jerome County's climate?

Yes — Anemones grows well in Jerome County's temperate climate. Jerome County averages a 147-day frost-free season, with last frost around May 10 and first frost around October 4.

🌱

Your Jerome County Garden Planner — Free

A 22-page printable planner built for Jerome County (Zone 6b). 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 Jerome County, ID. Local conditions may vary. Last updated: July 2026.

Sources & credits

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