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When to plant Daffodils in Weippe, ID

For Weippe, gardeners: plant Daffodils mid-spring through late spring once soil reads 50°F. A second sowing from August 24 to September 7 extends the harvest into fall.

When to Plant Daffodils in Weippe, ID

Clearwater County, Idaho Zone 7a June

Your June planting checklist for Clearwater County, Idaho

Each item below is timed to Clearwater County, Idaho's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 17
Avg. first frost September 28
Soil temp (4") 44°F
Watering High
Pest pressure High
Daylight 15.6 hrs

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Daffodils (Narcissus spp.) are among the most dependable and longest-lived of all spring bulbs. Their cheerful yellow and white blooms emerge in early spring, often while frost is still possible, bringing color weeks before most other flowers. Unlike tulips, established clumps naturalize readily — spreading and returning reliably year after year without replanting. Deer and rodents avoid them due to toxic alkaloids in the bulb and sap, making them a low-maintenance choice for naturalized areas, woodland edges, and mixed borders.

Weippe, Idaho is in USDA Zone 7a. The average last spring frost is May 17 and the first fall frost is September 28, giving you a growing season of approximately 134 days.

At an elevation of 7,800 feet, Clearwater County receives approximately 19 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Daffodils during the growing season. With low rainfall, drip irrigation is essential for growing Daffodils successfully. Mulch heavily to conserve soil moisture.

Bulb Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Weippe, ID (Zone 7a) Short season
134 days
Last Spring Frost May 17
134 growing days
First Fall Frost September 28

Weippe Soil Profile

Soil Type

Loam

Soil pH

6.5-8.1

Drainage

Well Drained

Daffodils Planting Risk Windows

Early Start (70% safe) ✓ Fits season (141 days to spare)
Transplant: May 8 🌸 Bloom: Apr 10 – May 1
Recommended (50%) ✓ Fits season (141 days to spare)
Transplant: May 17 🌸 Bloom: Apr 19 – May 10
Safe Start (90%) ✓ Fits season (148 days to spare)
Transplant: Jun 10 🌸 Bloom: May 13 – Jun 3

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 Weippe

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

Soil pH

Your soil pH (6.5–8.1) is more alkaline than Daffodils prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Daffodils

7"
Planting Depth
7"
Between Plants
8"
Between Rows

Fall planting: Sow 5 weeks before your first frost date for a fall harvest.

Succession Planting Daffodils

8
successive plantings in your 134-day season

Sow every 2.3 weeks. Last sowing by Aug 19 to harvest before frost.

For a dedicated fall crop, sow by Aug 24.

Daffodils Water Budget

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

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

Monthly Watering Guide for Daffodils

Daffodils 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 Daffodils Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 2.1" 0" ❄️ Dormant
May 2.2" 2.2" 0" ✅ Rainfall sufficient
Jun 2.2" 1.3" 0.9" 💧 Light watering
Jul 2.2" 1.8" 0.4" 💧 Light watering
Aug 2.2" 2" 0.2" 💧 Light watering
Sep 2.2" 1.5" 0.7" 💧 Light watering
Oct 1.8" 0" ❄️ Dormant
Nov 1.3" 0" ❄️ Dormant
Dec 1" 0" ❄️ Dormant

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

Daffodils 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.

Daffodils needs ~458 GDD — county provides 2,043 GDD Excellent fit

Daffodils Planting Timeline — Weippe, ID

Daffodils Planting Calendar

Activity When Date Range
Bloom July 27 Jul 27 – Aug 17
Fall Sowing August 24 Aug 24 – Sep 7

Plant 7" deep · 7" apart · Rows 8" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

20–40 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

134 days in Clearwater County

Growing Tips for Daffodils in Weippe

Direct sow Daffodils outdoors after May 17 in Clearwater County when soil has warmed and frost danger has passed.

Your generous 134.0-day season in Clearwater County allows multiple plantings of Daffodils. Sow every 10.0 days for continuous harvest.

Common pests for Daffodils in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

Clearwater County receives only 19" of rain annually. Daffodils needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant bulbs pointed-end up in fall, 6–8 inches deep and 6–8 inches apart in well-drained soil. Allow 12–16 weeks of cold dormancy for proper vernalization. Do not cut back foliage until it turns yellow (6–8 weeks after bloom) — the dying leaves photosynthesize energy into the bulb for next year. Lift and divide overcrowded clumps every 4–5 years in summer after foliage dies back. In zones 7b–9b, select heat-tolerant cultivars (Jonquilla, Tazetta, and Cyclamineus divisions) that perform better with less chill than large-cupped types. Zones 10+: insufficient winter cold; pre-chilling is required but results inconsistent — not recommended for outdoor culture.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

When should I plant Daffodils in Weippe, ID?

In Weippe, ID, plant Daffodils after the last frost (around May 17) and before the first frost (around September 28). Best results when soil holds above 50°F.

What growing zone is Weippe, ID for Daffodils?

Weippe sits in USDA Zone 7a. Daffodils grows reliably in zones 3a through 9b, so it's a good fit here.

Can Daffodils grow in Weippe's climate?

Yes — Daffodils grows well in Weippe's temperate climate. Weippe averages a 134-day frost-free season, with last frost around May 17 and first frost around September 28.

🌱

Your Clearwater County Garden Planner — Free

A 22-page printable planner built for Clearwater County (Zone 7a). 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 Clearwater County, ID. Local conditions may vary. Last updated: June 2026.