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When to plant Coreopsis in Nome Census Area County,

In Nome Census Area County, Coreopsis is a spring-only crop. Plant June 10–July 1 once soil hits 50°F.

When to Plant Coreopsis in Nome Census Area, AK

Nome Census Area, Alaska Zone 3b June

Your June game plan for Nome Census Area, Alaska

Your garden in Nome Census Area, Alaska is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost June 3
Avg. first frost September 2
Soil temp (4") 54°F
Watering Moderate
Pest pressure Moderate
Daylight 20.6 hrs
  1. Plant out coreopsis

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

  2. Scatter coreopsis into prepared beds

    Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.

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Coreopsis (Tickseed) is a cheerful, long-blooming native perennial that produces a continuous flush of bright yellow, gold, or bi-colored daisy-like flowers from early summer well into fall. One of the most reliable cut-and-come-again bloomers in the perennial garden, it thrives in hot, dry, sunny conditions and poor soil where many competitors struggle. An invaluable nectar source for native bees and butterflies, and a butterfly host plant for several species.

Nome Census Area, Alaska is in USDA Zone 3b. The average last spring frost is June 3 and the first fall frost is September 2, giving you a growing season of approximately 91 days.

At an elevation of 2,593 feet, Nome Census Area receives approximately 39.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 61°F, so choose short-season varieties of Coreopsis to ensure they mature before fall.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Nome Census Area, AK (Zone 3b) Very short season
91 days
Last Spring Frost June 3
91 growing days
First Fall Frost September 2

Nome Census Area Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.7

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Mar 22 Transplant: Jun 14 🌸 Bloom: Sep 6 – Nov 8
Recommended (50%) ✗ May not fit
Start indoors: Mar 25 Transplant: Jun 17 🌸 Bloom: Sep 9 – Nov 11
Safe Start (90%) ✗ May not fit
Start indoors: Apr 3 Transplant: Jun 26 🌸 Bloom: Sep 18 – Nov 20

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 Nome Census Area

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

Soil pH

Your soil pH (5.0–6.7) overlaps with Coreopsis's range (5.5–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Nome Census Area is excellent for Coreopsis — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Coreopsis prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is excellent (6.2%) — Coreopsis will thrive.

How to Plant Coreopsis

0.1"
Planting Depth
18"
Between Plants
24"
Between Rows

Coreopsis Water Budget

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

Monthly Watering Guide for Coreopsis

Coreopsis 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 Coreopsis Needs Rainfall You Supplement Action
Jan 2" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.8" 0" ❄️ Dormant
Jun 2.2" 3.2" 0" ✅ Rainfall sufficient
Jul 2.2" 5.2" 0" ✅ Rainfall sufficient
Aug 2.2" 6.1" 0" ✅ Rainfall sufficient
Sep 2.2" 6.5" 0" ✅ Rainfall sufficient
Oct 4.8" 0" ❄️ Dormant
Nov 3.2" 0" ❄️ Dormant
Dec 2.6" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Nome Census Area). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Coreopsis 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.

Coreopsis needs ~0 GDD — county provides 0 GDD May not mature

Coreopsis Planting Timeline — Nome Census Area, AK

Coreopsis Planting Calendar

Activity When Date Range
Start Indoors March 25 Mar 25 – Apr 8
Transplant Outdoors June 17 Jun 17 – Jul 1
Direct Sow June 10 Jun 10 – Jul 1
Bloom September 9 Sep 9 – Nov 11

Plant 0.1" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 3b

📆 Growing Season

91 days in Nome Census Area

Growing Tips for Coreopsis in Nome Census Area

Direct sow Coreopsis outdoors after June 03 in Nome Census Area when soil has warmed and frost danger has passed.

Your 91.0-day growing season in Nome Census Area is tight for Coreopsis (60.0-80.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Coreopsis 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 or direct sow after last frost. Seeds germinate easily without stratification. Thrives in poor to average, well-drained soil — rich soil promotes foliage over flowers. Drought tolerant once established; overwatering is the most common mistake. Deadhead spent blooms to maintain continuous flowering through the season. Shear plants by one-third in midsummer for a fresh flush of late-season blooms. Year 2+ plants bloom most heavily. Divide every 2–3 years in early spring to rejuvenate crowded clumps.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Coreopsis in Nome Census Area, AK?

Nome Census Area is in Zone 3b with an average last frost of June 3. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nome Census Area, AK?

Nome Census Area, Alaska is in USDA Hardiness Zone 3b. The average last spring frost is June 3 and first fall frost is September 2.

When should I plant Coreopsis in Nome Census Area County, ?

In Nome Census Area County, , plant Coreopsis after the last frost (around June 3) and before the first frost (around September 2). Best results when soil holds above 50°F.

What growing zone is Nome Census Area County, for Coreopsis?

Nome Census Area County sits in USDA Zone 3b. Coreopsis grows reliably in zones 3a through 9b, so it's a good fit here.

Can Coreopsis grow in Nome Census Area County's climate?

Yes — Coreopsis grows well in Nome Census Area County's temperate climate. Nome Census Area County averages a 91-day frost-free season, with last frost around June 3 and first frost around September 2.

🌱

Your Nome Census Area Garden Planner — Free

A 22-page printable planner built for Nome Census Area (Zone 3b). 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 Nome Census Area, AK. 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.