When to Plant Peas in La Paz County, AZ
Your May planting checklist for La Paz County, Arizona
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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It's harvest week for peas
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Peas are a cool-season legume that fixes nitrogen in the soil. Garden peas are shelled, while snap and snow peas are eaten pod and all.
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 Peas may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Peas will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Peas 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 Peas's growing requirements.
Soil pH
Your soil pH (7.2–8.3) is more alkaline than Peas prefers (6.0–7.5). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in La Paz County warms quickly in spring but drains fast. Peas 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 Peas.
How to Plant Peas
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Peas
Sow every 6.3 weeks. Last sowing by Sep 27 to harvest before frost.
For a dedicated fall crop, sow by Oct 11.
Plant Water Budget
Water stress score is 10/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Peas
Peas needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Peas Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.3" | 0" | ❄️ Dormant |
| Feb | 3" | 0.9" | 2.1" | 🚿 Regular watering |
| Mar | 3" | 1" | 2" | 🚿 Regular watering |
| Apr | 3" | 0.6" | 2.4" | 🚿 Regular watering |
| May | 3" | 0.4" | 2.6" | 🚿 Regular watering |
| Jun | 3" | 0.7" | 2.3" | 🚿 Regular watering |
| Jul | 3" | 2.5" | 0.5" | 💧 Light watering |
| Aug | 3" | 3.7" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 2.5" | 0.5" | 💧 Light watering |
| Oct | 3" | 1.6" | 1.4" | 💧 Light watering |
| Nov | 3" | 1" | 2" | 🚿 Regular watering |
| Dec | 3" | 1.2" | 1.8" | 🚿 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.
Peas 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.
Peas Planting Timeline — La Paz County, AZ
Peas 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 | March 30 | Mar 30 – May 25 |
| Fall Sowing | October 11 | Oct 11 – Oct 25 |
Plant 1" deep · 4" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | Harvest |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.7"/week · 1-2 times/week
📅 Days to Maturity
55–70 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9a
📆 Growing Season
307 days in La Paz County
Growing Tips for Peas in La Paz County
Direct sow Peas 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 Peas with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Summer highs in La Paz County reach 105°F — grow Peas as a spring or fall crop. Use shade cloth if planting in summer.
Common pests for Peas in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow as early as soil can be worked in spring. Inoculate seeds with rhizobium for best nitrogen fixation. Provide trellising for climbing varieties.
Recommended Peas Varieties for La Paz County
Heat-tolerant peas — plant very early or as fall crop
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Very easy to save. Self-pollinating means varieties stay true.
Peas in Other Locations
Frequently Asked Questions
When should I plant Peas in La Paz County, AZ?
La Paz County is in Zone 9a with an average last frost of February 2. Plan your Peas 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.