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When to Plant Persimmon in Klamath County, OR

Klamath County, Oregon Zone 6b July

July to-do list for Klamath County, Oregon

We've pulled the most time-sensitive tasks for Klamath County, Oregon this July and put them front and centre. Tackle them in order.

Avg. last frost June 13
Avg. first frost September 21
Soil temp (4") 82°F
Watering Critical
Pest pressure High
Daylight 14.8 hrs
  1. Move persimmon from tray to bed

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

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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.

Klamath County, Oregon is in USDA Zone 6b. The average last spring frost is June 13 and the first fall frost is September 21, giving you a growing season of approximately 100 days.

At an elevation of 142 feet, Klamath County receives approximately 48.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Persimmon to ensure they mature before fall.

Klamath County, OR (Zone 6b) Short season
100 days
Last Spring Frost June 13
100 growing days
First Fall Frost September 21

Klamath County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.3

Drainage

Well Drained

Persimmon Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jun 20
Recommended (50%) ✓ Fits season
Transplant: Jul 4
Safe Start (90%) ✓ Fits season
Transplant: Jul 17

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 Klamath County

How your county's soil matches Persimmon's growing requirements.

Soil pH

Your soil pH (5.5–6.3) is more acidic than Persimmon prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Klamath County is excellent for Persimmon — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Persimmon.

Organic Matter

Organic matter is excellent (5.1%) — Persimmon will thrive.

How to Plant Persimmon

120"
Between Plants
144"
Between Rows

Persimmon Water Budget

Plant needs
1.0″/week
Rainfall provides
2.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 7.4" 0" ❄️ Dormant
Feb 5.2" 0" ❄️ Dormant
Mar 4.8" 0" ❄️ Dormant
Apr 3.3" 0" ❄️ Dormant
May 3" 0" ❄️ Dormant
Jun 4.3" 1.8" 2.5" 🚿 Regular watering
Jul 4.3" 0.9" 3.4" 🚿 Regular watering
Aug 4.3" 0.8" 3.5" 🚿 Regular watering
Sep 4.3" 2.1" 2.2" 🚿 Regular watering
Oct 4.8" 0" ❄️ Dormant
Nov 7.7" 0" ❄️ Dormant
Dec 6.9" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Klamath 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 needs ~22,356 GDD — county provides 1,225 GDD May not mature

Persimmon Planting Timeline — Klamath County, OR

Persimmon Planting Calendar

Activity When Date Range
Transplant Outdoors July 4 Jul 4 – Jul 18

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
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 · Natural rainfall sufficient

📅 Days to Maturity

1095–2555 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6b

📆 Growing Season

100 days in Klamath County

Growing Tips for Persimmon in Klamath County

Direct sow Persimmon outdoors after June 13 in Klamath County when soil has warmed and frost danger has passed.

Your 100.0-day growing season in Klamath County is tight for Persimmon (1095.0-2555.0 days to maturity). Start indoors and choose early-maturing varieties.

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 →

Frequently Asked Questions

When should I plant Persimmon in Klamath County, OR?

Klamath County is in Zone 6b with an average last frost of June 13. Plan your Persimmon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Klamath County, OR?

Klamath County, Oregon is in USDA Hardiness Zone 6b. The average last spring frost is June 13 and first fall frost is September 21.

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Your Klamath County Garden Planner — Free

A 22-page printable planner built for Klamath County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Klamath County, OR. Local conditions may vary. Last updated: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.