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When to Plant Che Fruit in Yakima County, WA

Yakima County, Washington Zone 7a May

May to-do list for Yakima County, Washington

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.

Avg. last frost May 6
Avg. first frost October 3
Soil temp (4") 54°F
Watering Critical
Pest pressure Low
Daylight 14.8 hrs
  1. Move che fruit from tray to bed

    Your last frost (May 6) has passed. These warm-season crops can handle outdoor soil now.

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Che fruit (Chinese mulberry) is a small, cold-hardy tree producing round, red fruits with a sweet, watermelon-fig flavor. It is an underutilized fruit tree with great potential.

Yakima County, Washington is in USDA Zone 7a. The average last spring frost is May 6 and the first fall frost is October 3, giving you a growing season of approximately 150 days.

At an elevation of 3,150 feet, Yakima County receives approximately 18 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Che Fruit during the growing season. With low rainfall, drip irrigation is essential for growing Che Fruit successfully. Mulch heavily to conserve soil moisture.

Yakima County, WA (Zone 7a) Moderate season
150 days
Last Spring Frost May 6
150 growing days
First Fall Frost October 3

Yakima County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 21
Recommended (50%) ✓ Fits season
Transplant: May 27
Safe Start (90%) ✓ Fits season
Transplant: Jun 16

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 Yakima County

How your county's soil matches Che Fruit's growing requirements.

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is excellent (4.8%) — Che Fruit will thrive.

How to Plant Che Fruit

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 662 gal / 100 sq ft

Monthly Watering Guide for Che Fruit

Che Fruit needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Che Fruit Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 1.6" 0" ❄️ Dormant
Apr 1.3" 0" ❄️ Dormant
May 4.3" 1" 3.3" 🚿 Regular watering
Jun 4.3" 0.6" 3.7" 🚿 Regular watering
Jul 4.3" 0.3" 4" 🚿 Regular watering
Aug 4.3" 0.3" 4" 🚿 Regular watering
Sep 4.3" 0.6" 3.7" 🚿 Regular watering
Oct 4.3" 1.4" 2.9" 🚿 Regular watering
Nov 3.2" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Yakima County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Che Fruit 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.

Che Fruit needs ~21,170 GDD — county provides 2,175 GDD May not mature

Che Fruit Planting Timeline — Yakima County, WA

Che Fruit Planting Calendar

Activity When Date Range
Transplant Outdoors May 27 May 27 – Jun 10

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June Transplant Outdoors
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

1095–1825 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

150 days in Yakima County

Growing Tips for Che Fruit in Yakima County

Direct sow Che Fruit outdoors after May 06 in Yakima County when soil has warmed and frost danger has passed.

Your 150.0-day growing season in Yakima County is tight for Che Fruit (1095.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

Yakima County receives only 18" of rain annually. Che Fruit needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant in well-drained soil. A male pollinator is needed for seeded fruit, but seedless fruit can set parthenocarpically. Minimal pruning required. Fruits ripen in late summer.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Che Fruit in Yakima County, WA?

Yakima County is in Zone 7a with an average last frost of May 6. Plan your Che Fruit planting based on this frost date — see the calendar above for exact timing.

What planting zone is Yakima County, WA?

Yakima County, Washington is in USDA Hardiness Zone 7a. The average last spring frost is May 6 and first fall frost is October 3.

🌱

Your Yakima County Garden Planner — Free

A 24-page printable planner built for Yakima County (Zone 7a). 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 Yakima County, WA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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