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When to Plant Lemon Balm in Hempstead County, AR

Hempstead County, Arkansas Zone 8a May

Your May gardening checklist

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 March 21
Avg. first frost November 12
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
  1. Basket week: lemon balm

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Coming up in June — start thinking about
  • First harvests: lemon balm

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Lemon balm is a vigorous perennial herb with bright green, lemon-scented leaves. It makes a refreshing tea and is easy to grow but can spread aggressively.

Hempstead County, Arkansas is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 12, giving you a growing season of approximately 236 days.

At an elevation of 1,302 feet, Hempstead County receives approximately 48.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Lemon Balm during the growing season.

Hempstead County, AR (Zone 8a) Long season
236 days
Last Spring Frost March 21
236 growing days
First Fall Frost November 12

Hempstead County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Transplant: Mar 19 🍅 Harvest: May 21 – Jul 9
Recommended (50%) ✓ Fits season (117 days to spare)
Transplant: Mar 28 🍅 Harvest: May 30 – Jul 18
Safe Start (90%) ✓ Fits season (110 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 23 – Aug 11

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 Hempstead County

How your county's soil matches Lemon Balm's growing requirements.

Soil pH

Your soil pH (5.5–7.1) is within Lemon Balm's preferred range (5.5–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Lemon Balm.

How to Plant Lemon Balm

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Lemon Balm

4
successive plantings in your 236-day season

Sow every 6.9 weeks. Last sowing by Sep 03 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Lemon Balm

Lemon Balm needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Lemon Balm Needs Rainfall You Supplement Action
Jan 4.1" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 2.2" 4.2" 0" ✅ Rainfall sufficient
Apr 2.2" 3.3" 0" ✅ Rainfall sufficient
May 2.2" 4.2" 0" ✅ Rainfall sufficient
Jun 2.2" 3.8" 0" ✅ Rainfall sufficient
Jul 2.2" 4.8" 0" ✅ Rainfall sufficient
Aug 2.2" 4.5" 0" ✅ Rainfall sufficient
Sep 2.2" 3.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.6" 0" ✅ Rainfall sufficient
Nov 2.2" 4.3" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

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

Lemon Balm 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.

Lemon Balm needs ~1,040 GDD — county provides 3,776 GDD Excellent fit

Lemon Balm Planting Timeline — Hempstead County, AR

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors March 28 Mar 28 – Apr 11
Harvest May 30 May 30 – Jul 18

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–70 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

236 days in Hempstead County

Growing Tips for Lemon Balm in Hempstead County

Direct sow Lemon Balm outdoors after March 21 in Hempstead County when soil has warmed and frost danger has passed.

General growing tips

Start from seed, cuttings, or divisions. Contain in pots or use barriers to prevent spreading. Harvest frequently to keep plants bushy and prevent flowering.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemon Balm in Hempstead County, AR?

Hempstead County is in Zone 8a with an average last frost of March 21. Plan your Lemon Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hempstead County, AR?

Hempstead County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 12.

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Your Hempstead County Garden Planner — Free

A 24-page printable planner built for Hempstead County (Zone 8a). 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 Hempstead County, AR. 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.