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When to Plant Hardy Kiwi in Lyman County, SD

Lyman County, South Dakota Zone 5a May

Your May planting checklist for Lyman County, South Dakota

We've pulled the most time-sensitive tasks for Lyman County, South Dakota this May and put them front and centre. Tackle them in order.

Avg. last frost May 7
Avg. first frost October 6
Soil temp (4") 53°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
  1. Move hardy kiwi into the garden

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

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Hardy kiwi produces grape-sized, smooth-skinned fruits eaten whole without peeling. Unlike fuzzy kiwi, it is extremely cold-hardy to -25F once established.

Lyman County, South Dakota is in USDA Zone 5a. The average last spring frost is May 7 and the first fall frost is October 6, giving you a growing season of approximately 152 days.

At an elevation of 1,055 feet, Lyman County receives approximately 29.3 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Hardy Kiwi to ensure they mature before fall.

Lyman County, SD (Zone 5a) Moderate season
152 days
Last Spring Frost May 7
152 growing days
First Fall Frost October 6

Lyman County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 21
Recommended (50%) ✓ Fits season
Transplant: May 28
Safe Start (90%) ✓ Fits season
Transplant: Jun 9

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 Lyman County

How your county's soil matches Hardy Kiwi's growing requirements.

Soil pH

Your soil pH (6.7–7.6) is more alkaline than Hardy Kiwi prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Lyman County is excellent for Hardy Kiwi — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.6%). Annual compost additions will help Hardy Kiwi.

How to Plant Hardy Kiwi

72"
Between Plants
96"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 309 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Hardy Kiwi

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

Month Hardy Kiwi Needs Rainfall You Supplement Action
Jan 0.8" 0" ❄️ Dormant
Feb 1" 0" ❄️ Dormant
Mar 1.9" 0" ❄️ Dormant
Apr 3" 0" ❄️ Dormant
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 3.5" 0.8" 💧 Light watering
Aug 4.3" 3.6" 0.7" 💧 Light watering
Sep 4.3" 2.8" 1.5" 💧 Light watering
Oct 4.3" 1.8" 2.5" 🚿 Regular watering
Nov 1.1" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

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

Hardy Kiwi 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.

Hardy Kiwi needs ~16,790 GDD — county provides 1,748 GDD May not mature

Hardy Kiwi Planting Timeline — Lyman County, SD

Hardy Kiwi Planting Calendar

Activity When Date Range
Transplant Outdoors May 28 May 28 – Jun 11

· 72" apart · Rows 96" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

1095–1825 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5a

📆 Growing Season

152 days in Lyman County

Growing Tips for Hardy Kiwi in Lyman County

Direct sow Hardy Kiwi outdoors after May 07 in Lyman County when soil has warmed and frost danger has passed.

Your 152.0-day growing season in Lyman County is tight for Hardy Kiwi (1095.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant male and female vines for pollination. Provide very strong trellising as vines become massive. Prune similarly to grapes. Protect young plants from late spring frost.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hardy Kiwi in Lyman County, SD?

Lyman County is in Zone 5a with an average last frost of May 7. Plan your Hardy Kiwi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lyman County, SD?

Lyman County, South Dakota is in USDA Hardiness Zone 5a. The average last spring frost is May 7 and first fall frost is October 6.

🌱

Your Lyman County Garden Planner — Free

A 24-page printable planner built for Lyman County (Zone 5a). 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 Lyman County, SD. 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.