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When to plant Dill in Weippe, ID

In Weippe, plant Dill in spring between May 3 and May 24, once soil temps hold above 50°F. Weippe's last frost averages May 17, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between July 20 and August 3 — roughly 40–60 days before the first frost on September 28.

When to Plant Dill in Weippe, ID

Dill
Clearwater County, Idaho Zone 7a June

Your June game plan for Clearwater County, Idaho

Here's what deserves your attention in Clearwater County, Idaho this month. Everything below is tailored to Zone 7a and timed around your local frost dates.

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

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Collect dill at their peak

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Looking ahead to July
  • First harvests: dill
  • Fall sowing: dill

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Dill is a feathery annual herb with aromatic leaves and seeds. Its fine foliage and umbrella-shaped flower heads attract beneficial insects to the garden.

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 Dill during the growing season. With low rainfall, drip irrigation is essential for growing Dill successfully. Mulch heavily to conserve soil moisture.

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

Dill Planting Risk Windows

Early Start (70% safe) ✓ Fits season (36 days to spare)
Start indoors: Apr 3 Transplant: May 1 🍅 Harvest: Jun 12 – Aug 14
Recommended (50%) ✓ Fits season (36 days to spare)
Start indoors: Apr 12 Transplant: May 10 🍅 Harvest: Jun 21 – Aug 23
Safe Start (90%) ✓ Fits season (43 days to spare)
Start indoors: May 6 Transplant: Jun 3 🍅 Harvest: Jul 15 – Sep 16

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 Dill's growing requirements.

Soil pH

Your soil pH (6.5–8.1) is more alkaline than Dill prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Dill

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Dill

3
successive plantings in your 134-day season

Sow every 4.6 weeks. Last sowing by Jul 30 to harvest before frost.

For a dedicated fall crop, sow by Jul 20.

Dill 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 Dill

Dill 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 Dill 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.

Dill 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.

Dill needs ~762 GDD — county provides 2,043 GDD Excellent fit

Dill Planting Timeline — Weippe, ID

Dill Planting Calendar

Activity When Date Range
Start Indoors April 12 Apr 12 – Apr 26
Transplant Outdoors May 10 May 10 – May 24
Direct Sow May 3 May 3 – May 24
Harvest June 21 Jun 21 – Aug 23
Fall Sowing July 20 Jul 20 – Aug 3

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

134 days in Clearwater County

Growing Tips for Dill in Weippe

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

Common pests for Dill in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring as dill has a taproot and dislikes transplanting. Succession sow for continuous leaf harvest. Allow some plants to flower for seeds and to attract beneficial insects.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

When should I plant Dill in Weippe, ID?

In Weippe, ID, plant Dill 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 Dill?

Weippe sits in USDA Zone 7a. Dill grows reliably in zones 2a through 11b, so it's a good fit here.

Can Dill grow in Weippe's climate?

Yes — Dill 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.