When to Plant Figs in Hawaii County, HI
Figs are ancient fruiting trees or shrubs producing uniquely sweet fruits with soft flesh. They are surprisingly cold-hardy for a Mediterranean plant and thrive against warm walls.
Hawaii County, Hawaii is in USDA Zone 11a. The average last spring frost is January 1 and the first fall frost is December 31, giving you a growing season of approximately 364 days.
At an elevation of 525 feet, Hawaii County receives approximately 96.2 inches of rainfall annually with predominantly silty clay soil. Summer highs average 87°F, providing good warmth for Figs during the growing season. Clay soil retains moisture well for Figs, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Figs root diseases.
Hawaii County Soil Profile
Soil Type
Silty Clay
Soil pH
5.6-6.6
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 Hawaii County
How your county's soil matches Figs's growing requirements.
Soil pH
Your soil pH (5.6–6.6) overlaps with Figs's range (6.0–6.5), though not a perfect match.
Soil Texture
Your silty clay soil in Hawaii County is workable for Figs. Add compost annually to improve structure.
Organic Matter
Organic matter is excellent (4.1%) — Figs will thrive.
How to Plant Figs
Plant Water Budget
Monthly Watering Guide for Figs
Figs needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Figs Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 4.3" | 13.1" | 0" | ✅ Rainfall sufficient |
| Feb | 4.3" | 11.1" | 0" | ✅ Rainfall sufficient |
| Mar | 4.3" | 11.1" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 8.4" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 5.6" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Jul | 4.3" | 2.3" | 2" | 💧 Light watering |
| Aug | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Sep | 4.3" | 4.7" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 10.3" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 12.3" | 0" | ✅ Rainfall sufficient |
| Dec | 4.3" | 12" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Jan–Dec in Hawaii County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Figs 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.
Figs Planting Timeline — Hawaii County, HI
Figs Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | January 15 | Jan 15 – Jan 29 |
· 120" apart · Rows 144" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Transplant Outdoors |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
730–1825 days
🧪 Soil pH
Needs 6–6.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 11a
📆 Growing Season
364 days in Hawaii County
Growing Tips for Figs in Hawaii County
With Hawaii County's clay soil (39% clay), work in 3-4 inches of compost before planting Figs. Avoid tilling when soil is wet to prevent compaction.
Your 365.0-day growing season in Hawaii County is tight for Figs (730.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
Plant against a south-facing wall for maximum heat. Restrict root growth with barriers to encourage fruiting over vegetative growth. Protect in winter with wrapping in cold zones.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Figs in Other Locations
Frequently Asked Questions
When should I plant Figs in Hawaii County, HI?
Hawaii County is in Zone 11a with an average last frost of January 1. Plan your Figs planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hawaii County, HI?
Hawaii County, Hawaii is in USDA Hardiness Zone 11a. The average last spring frost is January 1 and first fall frost is December 31.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Hawaii County gardeners in Zone 11a organize planting dates, track what's growing, and never miss a planting window.
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