When to Plant Shallot in La Paz County, AZ
What to do in May
We've pulled the most time-sensitive tasks for La Paz County, Arizona this May and put them front and centre. Tackle them in order.
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Basket week: shallot
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
June prep starts now
- First harvests: shallot
Shallots are a gourmet allium prized for their complex, sweet, and mild flavor. Each bulb multiplies into a cluster, making them easy and rewarding to grow.
La Paz County, Arizona is in USDA Zone 9a. The average last spring frost is February 2 and the first fall frost is December 6, giving you a growing season of approximately 307 days.
At an elevation of 4,875 feet, La Paz County receives approximately 17.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 105°F, so Shallot may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Shallot will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Shallot successfully. Mulch heavily to conserve soil moisture.
La Paz County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.2-8.3
Drainage
Well Drained
Plant 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 La Paz County
How your county's soil matches Shallot's growing requirements.
Soil pH
Your soil pH (7.2–8.3) is more alkaline than Shallot prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in La Paz County warms quickly in spring but drains fast. Shallot will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (0.7%). Add 2-3 inches of compost before planting Shallot.
How to Plant Shallot
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Plant Water Budget
Water stress score is 10/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Shallot
Shallot needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Shallot Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.3" | 0" | ❄️ Dormant |
| Feb | 4.3" | 0.9" | 3.4" | 🚿 Regular watering |
| Mar | 4.3" | 1" | 3.3" | 🚿 Regular watering |
| Apr | 4.3" | 0.6" | 3.7" | 🚿 Regular watering |
| May | 4.3" | 0.4" | 3.9" | 🚿 Regular watering |
| Jun | 4.3" | 0.7" | 3.6" | 🚿 Regular watering |
| Jul | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Aug | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Sep | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Oct | 4.3" | 1.6" | 2.7" | 🚿 Regular watering |
| Nov | 4.3" | 1" | 3.3" | 🚿 Regular watering |
| Dec | 4.3" | 1.2" | 3.1" | 🚿 Regular watering |
Water needs are for active growing months only (Feb–Dec in La Paz County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Shallot 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.
Shallot Planting Timeline — La Paz County, AZ
Shallot Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 5 | Jan 5 – Jan 19 |
| Transplant Outdoors | February 2 | Feb 2 – Feb 16 |
| Direct Sow | January 12 | Jan 12 – Feb 2 |
| Harvest | May 4 | May 4 – Jun 22 |
| Fall Sowing | October 11 | Oct 11 – Oct 25 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | — |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · 2-3 times/week
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9a
📆 Growing Season
307 days in La Paz County
Growing Tips for Shallot in La Paz County
Direct sow Shallot outdoors after February 02 in La Paz County when soil has warmed and frost danger has passed.
Sandy soil in La Paz County dries quickly — mulch Shallot with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 105°F in La Paz County, provide afternoon shade for Shallot and water deeply in the morning.
Common pests for Shallot in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
La Paz County receives only 17" of rain annually. Shallot needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Plant sets in fall for spring harvest or early spring for summer harvest. Mulch heavily if overwintering. Harvest when tops brown and dry, then cure for storage.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Shallot in Other Locations
Frequently Asked Questions
When should I plant Shallot in La Paz County, AZ?
La Paz County is in Zone 9a with an average last frost of February 2. Plan your Shallot planting based on this frost date — see the calendar above for exact timing.
What planting zone is La Paz County, AZ?
La Paz County, Arizona is in USDA Hardiness Zone 9a. The average last spring frost is February 2 and first fall frost is December 6.
Your La Paz County Garden Planner — Free
A 24-page printable planner built for La Paz County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.