When to plant Leeks in Weldon, CA
Plant Leeks in Weldon after February 28; the prime window is February 7–February 28. A second sowing from October 4 to October 18 extends the harvest into fall.
When to Plant Leeks in Weldon, CA
What to do in June
Each item below is timed to Kern County, California's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Pick leeks
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Looking ahead to July
- First harvests: leeks
Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.
Weldon, California is in USDA Zone 9b. The average last spring frost is February 28 and the first fall frost is November 29, giving you a growing season of approximately 274 days.
At an elevation of 389 feet, Kern County receives approximately 16.9 inches of rainfall annually with predominantly loam soil. Summer highs average 102°F, so Leeks may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Leeks successfully. Mulch heavily to conserve soil moisture.
Weldon Soil Profile
Soil Type
Loam
Soil pH
6.2-7.7
Drainage
Well Drained
Leeks Planting Risk Windows
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 Weldon
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (6.2–7.7) overlaps with Leeks's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Kern County is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Leeks.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Leeks.
How to Plant Leeks
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Leeks Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Leeks
Leeks needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Leeks Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.9" | 0" | ❄️ Dormant |
| Feb | 3.5" | 3.4" | 0.1" | 💧 Light watering |
| Mar | 3.5" | 2.4" | 1.1" | 💧 Light watering |
| Apr | 3.5" | 1.2" | 2.3" | 🚿 Regular watering |
| May | 3.5" | 0.5" | 3" | 🚿 Regular watering |
| Jun | 3.5" | 0.1" | 3.4" | 🚿 Regular watering |
| Jul | 3.5" | 0" | 3.5" | 🚿 Regular watering |
| Aug | 3.5" | 0" | 3.5" | 🚿 Regular watering |
| Sep | 3.5" | 0.2" | 3.3" | 🚿 Regular watering |
| Oct | 3.5" | 0.7" | 2.8" | 🚿 Regular watering |
| Nov | 3.5" | 1.7" | 1.8" | 🚿 Regular watering |
| Dec | — | 2.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Nov in Kern County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Leeks 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.
Leeks Planting Timeline — Weldon, CA
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 31 | Jan 31 – Feb 14 |
| Transplant Outdoors | February 28 | Feb 28 – Mar 14 |
| Direct Sow | February 7 | Feb 7 – Feb 28 |
| Harvest | May 30 | May 30 – Aug 15 |
| Fall Sowing | October 4 | Oct 4 – Oct 18 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · 2-3 times/week
📅 Days to Maturity
90–150 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 9b
📆 Growing Season
274 days in Kern County
Growing Tips for Leeks in Weldon
Direct sow Leeks outdoors after February 28 in Kern County when soil has warmed and frost danger has passed.
With summer highs reaching 102°F in Kern County, provide afternoon shade for Leeks and water deeply in the morning.
Common pests for Leeks in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Leeks in Other Locations
When should I plant Leeks in Weldon, CA?
In Weldon, CA, plant Leeks after the last frost (around February 28) and before the first frost (around November 29). Best results when soil holds above 50°F.
What growing zone is Weldon, CA for Leeks?
Weldon sits in USDA Zone 9b. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Weldon's climate?
Yes — Leeks grows well in Weldon's temperate climate. Weldon averages a 275-day frost-free season, with last frost around February 28 and first frost around November 29.
Your Kern County Garden Planner — Free
A 22-page printable planner built for Kern County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.