When to Plant Sorrel in Monmouth County, NJ
Your May planting checklist for Monmouth County, New Jersey
Here's what deserves your attention in Monmouth County, New Jersey this month. Everything below is tailored to Zone 7b and timed around your local frost dates.
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Indoor seed-starting week for sorrel
Label every cell. You will absolutely forget which is which otherwise.
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Harvest sorrel as they ripen
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
June will be here before you know it — start on
- First harvests: sorrel
Sorrel is a perennial herb with tangy, lemon-flavored arrow-shaped leaves. It is one of the first greens to emerge in spring and is used in soups and salads.
Monmouth County, New Jersey is in USDA Zone 7b. 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 280 feet, Monmouth County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Sorrel during the growing season.
Monmouth County Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.8
Drainage
Well Drained
Plant 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 Monmouth County
How your county's soil matches Sorrel's growing requirements.
Soil pH
Your soil pH (5.0–6.8) overlaps with Sorrel's range (5.5–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Monmouth County is excellent for Sorrel — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Sorrel.
Organic Matter
Organic matter is moderate (3.8%). Annual compost additions will help Sorrel.
How to Plant Sorrel
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Sorrel
Sow every 4.6 weeks. Last sowing by Sep 13 to harvest before frost.
For a dedicated fall crop, sow by Sep 03.
Plant Water Budget
Monthly Watering Guide for Sorrel
Sorrel needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Sorrel Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.7" | 0" | ❄️ Dormant |
| Feb | — | 2.5" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Apr | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| May | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Jun | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Jul | 4.3" | 4" | 0.3" | 💧 Light watering |
| Aug | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Sep | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Oct | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Nov | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| Dec | — | 3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Monmouth County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Sorrel 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.
Sorrel Planting Timeline — Monmouth County, NJ
Sorrel Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 22 | Feb 22 – Mar 8 |
| Transplant Outdoors | March 22 | Mar 22 – Apr 5 |
| Direct Sow | March 15 | Mar 15 – Apr 5 |
| Harvest | May 3 | May 3 – Jul 5 |
| Fall Sowing | September 3 | Sep 3 – Sep 17 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 7b
📆 Growing Season
228 days in Monmouth County
Growing Tips for Sorrel in Monmouth County
Direct sow Sorrel outdoors after March 29 in Monmouth County when soil has warmed and frost danger has passed.
Your generous 228.0-day season in Monmouth County allows multiple plantings of Sorrel. Sow every 20.0 days for continuous harvest.
General growing tips
Direct sow in early spring or fall. Remove flower stalks promptly to encourage leaf production. Divide clumps every 3-4 years. Young leaves have the best flavor.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Sorrel in Other Locations
Frequently Asked Questions
When should I plant Sorrel in Monmouth County, NJ?
Monmouth County is in Zone 7b with an average last frost of March 29. Plan your Sorrel planting based on this frost date — see the calendar above for exact timing.
What planting zone is Monmouth County, NJ?
Monmouth County, New Jersey is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 12.
Your Monmouth County Garden Planner — Free
A 24-page printable planner built for Monmouth County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.