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When to Plant Anemones in King County, TX

King County, Texas Zone 8a June

This month in King County, Texas

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in King County, Texas.

Avg. last frost March 31
Avg. first frost November 7
Soil temp (4") 71°F
Watering High
Pest pressure High
Daylight 14.2 hrs

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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.

King County, Texas is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 7, giving you a growing season of approximately 221 days.

At an elevation of 3,170 feet, King County receives approximately 60.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 99°F, so Anemones may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Anemones will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Anemones root diseases.

Bulb Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
King County, TX (Zone 8a) Long season
221 days
Last Spring Frost March 31
221 growing days
First Fall Frost November 7

King County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.4

Drainage

Well Drained

Anemones Planting Risk Windows

Early Start (70% safe) ✓ Fits season (180 days to spare)
Transplant: Mar 23 🌸 Bloom: Apr 6 – May 4
Recommended (50%) ✓ Fits season (179 days to spare)
Transplant: Mar 31 🌸 Bloom: Apr 14 – May 12
Safe Start (90%) ✓ Fits season (179 days to spare)
Transplant: Apr 15 🌸 Bloom: Apr 29 – May 27

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 King County

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

Soil pH

Your soil pH (7.8–8.4) is more alkaline than Anemones prefers (5.5–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Anemones.

How to Plant Anemones

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Anemones Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/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 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 4.7" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 4.3" 3.9" 0.4" 💧 Light watering
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 1.5" 2.8" 🚿 Regular watering
Jun 4.3" 2.2" 2.1" 💧 Light watering
Jul 4.3" 10.4" 0" ✅ Rainfall sufficient
Aug 4.3" 11.5" 0" ✅ Rainfall sufficient
Sep 4.3" 8.1" 0" ✅ Rainfall sufficient
Oct 4.3" 5.7" 0" ✅ Rainfall sufficient
Nov 4.3" 3" 1.3" 💧 Light watering
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in King 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 ~2,546 GDD — county provides 5,359 GDD Excellent fit

Anemones Planting Timeline — King County, TX

Anemones Planting Calendar

Activity When Date Range
Bloom September 26 Sep 26 – Oct 24
Fall Sowing September 12 Sep 12 – Sep 26

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May
June
July
August
September Fall Sowing Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

221 days in King County

Growing Tips for Anemones in King County

Direct sow Anemones outdoors after March 31 in King County when soil has warmed and frost danger has passed.

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

With summer highs reaching 99°F in King County, provide afternoon shade for Anemones and water deeply in the morning.

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 King County, TX?

King County is in Zone 8a with an average last frost of March 31. Plan your Anemones planting based on this frost date — see the calendar above for exact timing.

What planting zone is King County, TX?

King County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 7.

🌱

Your King County Garden Planner — Free

A 22-page printable planner built for King County (Zone 8a). 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 King County, TX. Local conditions may vary. Last updated: June 2026.

Sources & credits

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