When to Plant Christmas Lima Beans in Maricopa County, AZ
May to-do list for Maricopa County, Arizona
If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.
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Harvest christmas lima beans as they ripen
If you can't use it all right away, check the food-preservation section of your planner.
June will be here before you know it — start on
- First harvests: christmas lima beans
Christmas lima beans are a large, beautifully marbled heirloom bean with a rich, chestnut-like flavor. They are a climbing variety that produces generously in warm weather.
Maricopa County, Arizona is in USDA Zone 9b. The average last spring frost is January 31 and the first fall frost is December 6, giving you a growing season of approximately 309 days.
At an elevation of 4,014 feet, Maricopa County receives approximately 12.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 108°F, so Christmas Lima Beans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Christmas Lima Beans will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Christmas Lima Beans successfully. Mulch heavily to conserve soil moisture.
Maricopa County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.2-8.5
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 Maricopa County
How your county's soil matches Christmas Lima Beans's growing requirements.
Soil pH
Your soil pH (7.2–8.5) is more alkaline than Christmas Lima Beans prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in Maricopa County warms quickly in spring but drains fast. Christmas Lima Beans 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 Christmas Lima Beans.
How to Plant Christmas Lima Beans
Succession Planting Christmas Lima Beans
Sow every 9.1 weeks. Last sowing by Aug 28 to harvest before frost.
Plant Water Budget
Water stress score is 10/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Christmas Lima Beans
Christmas Lima Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Christmas Lima Beans Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 4.3" | 0.9" | 3.4" | 🚿 Regular watering |
| Feb | 4.3" | 0.8" | 3.5" | 🚿 Regular watering |
| Mar | 4.3" | 0.7" | 3.6" | 🚿 Regular watering |
| Apr | 4.3" | 0.5" | 3.8" | 🚿 Regular watering |
| May | 4.3" | 0.3" | 4" | 🚿 Regular watering |
| Jun | 4.3" | 0.4" | 3.9" | 🚿 Regular watering |
| Jul | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Aug | 4.3" | 2.3" | 2" | 💧 Light watering |
| Sep | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Oct | 4.3" | 1.2" | 3.1" | 🚿 Regular watering |
| Nov | 4.3" | 0.6" | 3.7" | 🚿 Regular watering |
| Dec | 4.3" | 0.8" | 3.5" | 🚿 Regular watering |
Water needs are for active growing months only (Jan–Dec in Maricopa County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Christmas Lima Beans 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.
Christmas Lima Beans Planting Timeline — Maricopa County, AZ
Christmas Lima Beans Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | December 20 | Dec 20 – Jan 3 |
| Transplant Outdoors | February 7 | Feb 7 – Feb 21 |
| Direct Sow | January 31 | Jan 31 – Feb 21 |
| Harvest | May 2 | May 2 – Jun 6 |
Plant 1" deep · 15" apart · Rows 24" 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 | — |
| November | — |
| December | Start Indoors |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · 2-3 times/week
📅 Days to Maturity
80–100 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9b
📆 Growing Season
309 days in Maricopa County
Growing Tips for Christmas Lima Beans in Maricopa County
Direct sow Christmas Lima Beans outdoors after January 31 in Maricopa County when soil has warmed and frost danger has passed.
Sandy soil in Maricopa County dries quickly — mulch Christmas Lima Beans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 108°F in Maricopa County, provide afternoon shade for Christmas Lima Beans and water deeply in the morning.
Common pests for Christmas Lima Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.
Maricopa County receives only 12" of rain annually. Christmas Lima Beans needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Direct sow after soil is warm. Provide tall trellising for vigorous vines. Harvest for fresh shelling when pods are plump or allow to dry on the vine for storage.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Christmas Lima Beans in Other Locations
Frequently Asked Questions
When should I plant Christmas Lima Beans in Maricopa County, AZ?
Maricopa County is in Zone 9b with an average last frost of January 31. Plan your Christmas Lima Beans planting based on this frost date — see the calendar above for exact timing.
What planting zone is Maricopa County, AZ?
Maricopa County, Arizona is in USDA Hardiness Zone 9b. The average last spring frost is January 31 and first fall frost is December 6.
Your Maricopa County Garden Planner — Free
A 24-page printable planner built for Maricopa 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.