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When to Plant Loquat in Coos County, OR

Coos County, Oregon Zone 9a May

May in Coos County, Oregon — your action list

May is a pivotal month for Coos County, Oregon gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 22
Avg. first frost November 19
Soil temp (4") 71°F
Watering High
Pest pressure High
Daylight 14.5 hrs

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Loquat is an attractive evergreen tree producing clusters of small, tangy-sweet, apricot-colored fruits in late winter to early spring. It also serves as an ornamental shade tree.

Coos County, Oregon is in USDA Zone 9a. The average last spring frost is March 22 and the first fall frost is November 19, giving you a growing season of approximately 242 days.

At an elevation of 96 feet, Coos County receives approximately 38.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Loquat during the growing season.

Coos County, OR (Zone 9a) Long season
242 days
Last Spring Frost March 22
242 growing days
First Fall Frost November 19
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Coos County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Mar 21
Recommended (50%) ✓ Fits season
Transplant: Apr 5
Safe Start (90%) ✓ Fits season
Transplant: May 6

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 Coos County

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

Soil pH

Your soil pH (5.4–6.8) overlaps with Loquat's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (5.7%) — Loquat will thrive.

How to Plant Loquat

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 703 gal / 100 sq ft

Monthly Watering Guide for Loquat

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

Month Loquat Needs Rainfall You Supplement Action
Jan 5.5" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 4.4" 0" ✅ Rainfall sufficient
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 2.3" 2" 💧 Light watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 0.6" 3.7" 🚿 Regular watering
Aug 4.3" 0.8" 3.5" 🚿 Regular watering
Sep 4.3" 1.4" 2.9" 🚿 Regular watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 5.9" 0" ✅ Rainfall sufficient
Dec 5.5" 0" ❄️ Dormant

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

Loquat 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.

Loquat needs ~21,398 GDD — county provides 4,053 GDD May not mature

Loquat Planting Timeline — Coos County, OR

Loquat Planting Calendar

Activity When Date Range
Transplant Outdoors April 5 Apr 5 – Apr 19

· 120" apart · Rows 144" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

730–1825 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

242 days in Coos County

Growing Tips for Loquat in Coos County

Direct sow Loquat outdoors after March 22 in Coos County when soil has warmed and frost danger has passed.

Your 242.0-day growing season in Coos County is tight for Loquat (730.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in a sheltered location to protect winter flowers from frost. Loquats are self-fertile but produce better with cross-pollination. Thin fruit clusters for larger individual fruits.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Loquat in Coos County, OR?

Coos County is in Zone 9a with an average last frost of March 22. Plan your Loquat planting based on this frost date — see the calendar above for exact timing.

What planting zone is Coos County, OR?

Coos County, Oregon is in USDA Hardiness Zone 9a. The average last spring frost is March 22 and first fall frost is November 19.

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Your Coos County Garden Planner — Free

A 24-page printable planner built for Coos County (Zone 9a). 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 Coos County, OR. 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.