When to plant Persimmon in Valley County, ID
Plant Persimmon in Valley County during the brief July 9–July 23 window. With 77 frost-free days, fall plantings can't mature before September 3.
When to Plant Persimmon in Valley County, ID
Your June planting checklist for Valley County, Idaho
Your garden in Valley County, Idaho is working on a schedule, even when you're not. Here's where you should be this June.
Coming up in July — start thinking about
- Transplants going out: persimmon
Persimmons are ornamental trees producing sweet, honey-flavored fruits in fall. American persimmons are astringent until fully ripe while Asian types can be eaten firm.
Valley County, Idaho is in USDA Zone 5a. The average last spring frost is June 18 and the first fall frost is September 3, giving you a growing season of approximately 77 days.
At an elevation of 7,884 feet, Valley County receives approximately 17.8 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Persimmon to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Persimmon successfully. Mulch heavily to conserve soil moisture.
Valley County Soil Profile
Soil Type
Loam
Soil pH
6.4-8.4
Drainage
Well Drained
Persimmon 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 Valley County
How your county's soil matches Persimmon's growing requirements.
Soil pH
Your soil pH (6.4–8.4) overlaps with Persimmon's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Valley County is excellent for Persimmon — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.6%). Annual compost additions will help Persimmon.
How to Plant Persimmon
Persimmon Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Persimmon
Persimmon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Persimmon Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.2" | 0" | ❄️ Dormant |
| Feb | — | 1" | 0" | ❄️ Dormant |
| Mar | — | 1.7" | 0" | ❄️ Dormant |
| Apr | — | 2.2" | 0" | ❄️ Dormant |
| May | — | 2.1" | 0" | ❄️ Dormant |
| Jun | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Jul | 4.3" | 1.5" | 2.8" | 🚿 Regular watering |
| Aug | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Sep | 4.3" | 1.4" | 2.9" | 🚿 Regular watering |
| Oct | — | 1.5" | 0" | ❄️ Dormant |
| Nov | — | 1.4" | 0" | ❄️ Dormant |
| Dec | — | 0.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Valley County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Persimmon 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.
Persimmon Planting Timeline — Valley County, ID
Persimmon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | July 9 | Jul 9 – Jul 23 |
· 120" apart · Rows 144" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | Transplant Outdoors |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
1095–2555 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
77 days in Valley County
Growing Tips for Persimmon in Valley County
Direct sow Persimmon outdoors after June 18 in Valley County when soil has warmed and frost danger has passed.
Your 77.0-day growing season in Valley County is tight for Persimmon (1095.0-2555.0 days to maturity). Start indoors and choose early-maturing varieties.
Valley County receives only 18" of rain annually. Persimmon needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Choose self-fertile varieties or plant male and female trees. American types must be fully soft-ripe before eating. Asian varieties may be eaten when firm. Minimal pruning needed.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Persimmon in Other Locations
Frequently Asked Questions
When should I plant Persimmon in Valley County, ID?
Valley County is in Zone 5a with an average last frost of June 18. Plan your Persimmon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Valley County, ID?
Valley County, Idaho is in USDA Hardiness Zone 5a. The average last spring frost is June 18 and first fall frost is September 3.
When should I plant Persimmon in Valley County, ID?
In Valley County, ID, plant Persimmon after the last frost (around June 18) and before the first frost (around September 3). Best results when soil holds above 50°F.
What growing zone is Valley County, ID for Persimmon?
Valley County sits in USDA Zone 5a. Persimmon grows reliably in zones 4a through 9b, so it's a good fit here.
Can Persimmon grow in Valley County's climate?
Yes — Persimmon grows well in Valley County's temperate climate. Valley County averages a 77-day frost-free season, with last frost around June 18 and first frost around September 3.
Your Valley County Garden Planner — Free
A 22-page printable planner built for Valley County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.