When to plant Shiso in Hempstead County, AR
Plant Shiso in Hempstead County, when soil hits 50°F — usually March 28. Continue planting through April 18 for the spring crop.
When to Plant Shiso in Hempstead County, AR
Your July planting checklist for Hempstead County, Arkansas
Your garden in Hempstead County, Arkansas is working on a schedule, even when you're not. Here's where you should be this July.
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Bring in the shiso
If you can't use it all right away, check the food-preservation section of your planner.
Shiso (perilla) is a fragrant Japanese herb with large, ruffled leaves in green or purple varieties. It has a unique flavor combining mint, basil, and anise.
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 Shiso during the growing season.
Hempstead County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-7.1
Drainage
Well Drained
Shiso 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 Hempstead County
How your county's soil matches Shiso's growing requirements.
Soil pH
Your soil pH (5.5–7.1) overlaps with Shiso's range (5.5–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Hempstead County is excellent for Shiso — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Shiso.
How to Plant Shiso
Succession Planting Shiso
Sow every 5.7 weeks. Last sowing by Sep 03 to harvest before frost.
Shiso Water Budget
Monthly Watering Guide for Shiso
Shiso needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Shiso Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.1" | 0" | ❄️ Dormant |
| Feb | — | 3.9" | 0" | ❄️ Dormant |
| Mar | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Apr | 4.3" | 3.3" | 1" | 💧 Light watering |
| May | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Jun | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Jul | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Oct | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Nov | 4.3" | 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.
Shiso 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.
Shiso Planting Timeline — Hempstead County, AR
Shiso Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 31 | Jan 31 – Feb 14 |
| Transplant Outdoors | April 4 | Apr 4 – Apr 18 |
| Direct Sow | March 28 | Mar 28 – Apr 18 |
| Harvest | May 30 | May 30 – Jul 25 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors |
| March | Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1"/week · Only during dry spells
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
236 days in Hempstead County
Growing Tips for Shiso in Hempstead County
Direct sow Shiso outdoors after March 21 in Hempstead County when soil has warmed and frost danger has passed.
General growing tips
Direct sow after last frost or start indoors. Both green and red varieties are available. Pinch tips to encourage bushiness. Self-sows prolifically; deadhead to control.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Shiso in Other Locations
Frequently Asked Questions
When should I plant Shiso in Hempstead County, AR?
Hempstead County is in Zone 8a with an average last frost of March 21. Plan your Shiso 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.
When should I plant Shiso in Hempstead County, AR?
In Hempstead County, AR, plant Shiso after the last frost (around March 21) and before the first frost (around November 12). Best results when soil holds above 50°F.
What growing zone is Hempstead County, AR for Shiso?
Hempstead County sits in USDA Zone 8a. Shiso grows reliably in zones 3a through 11b, so it's a good fit here.
Can Shiso grow in Hempstead County's climate?
Yes — Shiso grows well in Hempstead County's temperate climate. Hempstead County averages a 236-day frost-free season, with last frost around March 21 and first frost around November 12.
Your Hempstead County Garden Planner — Free
A 22-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.