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When to Plant Lingonberries in Sussex County, NJ

Sussex County, New Jersey Zone 6b May

May in the garden — Sussex County, New Jersey

A quick May briefing for Sussex County, New Jersey gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 29
Avg. first frost November 12
Soil temp (4") 61°F
Watering Moderate
Pest pressure Low
Daylight 14.3 hrs

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Lingonberries are low-growing evergreen shrubs producing small, tart red berries used in Scandinavian cuisine. They thrive in acidic soil and cold climates.

Sussex County, New Jersey is in USDA Zone 6b. The average last spring frost is March 29 and the first fall frost is November 12, giving you a growing season of approximately 228 days.

At an elevation of 174 feet, Sussex County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Lingonberries during the growing season.

Sussex County, NJ (Zone 6b) Long season
228 days
Last Spring Frost March 29
228 growing days
First Fall Frost November 12
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Sussex County Soil Profile

Soil Type

Silt Loam

Soil pH

4.8-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 15
Recommended (50%) ✓ Fits season
Transplant: Apr 19
Safe Start (90%) ✓ Fits season
Transplant: Apr 30

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 Sussex County

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

Soil pH

Your soil pH (4.8–6.4) is more alkaline than Lingonberries prefers (4.5–5.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Lingonberries.

How to Plant Lingonberries

48"
Between Plants
72"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 571 gal / 100 sq ft

Monthly Watering Guide for Lingonberries

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

Month Lingonberries Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 4.3" 3.1" 1.2" 💧 Light watering
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 3.2" 1.1" 💧 Light watering
Jun 4.3" 3.4" 0.9" 💧 Light watering
Jul 4.3" 3.9" 0.4" 💧 Light watering
Aug 4.3" 3.8" 0.5" 💧 Light watering
Sep 4.3" 3.1" 1.2" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 3.5" 0.8" 💧 Light watering
Dec 3.4" 0" ❄️ Dormant

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

Lingonberries 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.

Lingonberries needs ~13,231 GDD — county provides 3,306 GDD May not mature

Lingonberries Planting Timeline — Sussex County, NJ

Lingonberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 19 Apr 19 – May 3

· 48" apart · Rows 72" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 4.5–5.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

228 days in Sussex County

Growing Tips for Lingonberries in Sussex County

Direct sow Lingonberries outdoors after March 29 in Sussex County when soil has warmed and frost danger has passed.

Your 228.0-day growing season in Sussex County is tight for Lingonberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Amend soil with peat and pine needle mulch for acidity. Plant 12 inches apart as a ground cover. Berries ripen in late summer. Requires minimal pruning.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lingonberries in Sussex County, NJ?

Sussex County is in Zone 6b with an average last frost of March 29. Plan your Lingonberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sussex County, NJ?

Sussex County, New Jersey is in USDA Hardiness Zone 6b. The average last spring frost is March 29 and first fall frost is November 12.

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Your Sussex County Garden Planner — Free

A 24-page printable planner built for Sussex 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 Sussex County, NJ. 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.