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When to Plant Hardy Kiwi in USDA Zone 5b

Zone 5b Zone 5b May

Top priorities for Zone 5b gardeners in May

We've pulled the most time-sensitive tasks for Zone 5b this May and put them front and centre. Tackle them in order.

Avg. last frost May 1
Avg. first frost October 9
  1. Move hardy kiwi from tray to bed

    Your last frost (May 1) has passed. These warm-season crops can handle outdoor soil now.

Get your free Zone 5b 2026 Planting Guide →

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

In Zone 5b, the average last spring frost is around April 18 and the first fall frost is around October 13, giving you a growing season of approximately 178 days.

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Zone 5b Moderate season
178 days
Last Spring Frost April 18
178 growing days
First Fall Frost October 13

Hardy Kiwi Planting Timeline — Zone 5b

Where Is USDA Zone 5b?

The map below highlights the states that contain Zone 5b. Click any state to see the Hardy Kiwi planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Hardy Kiwi Planting Calendar — Zone 5b

Activity When Date Range
Transplant Outdoors May 9 May 9 – May 23

· 72" apart · Rows 96" apart

Month-by-Month Timeline

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

Free Zone 5b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 5b with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

Days to Maturity

1095–1825 days

Soil pH

5.5 – 7

Zone Temperature Range

°F to °F average annual minimum

Growing Season

178 days (Zone average)

Planting Specifications

Plant Spacing72 inches apart
Row Spacing96 inches between rows

Growing Tips for Hardy Kiwi in Zone

Zone has a short growing season (~178 days). Start Hardy Kiwi indoors early and use season-extension techniques like row covers and cold frames.

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

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Saving Hardy Kiwi Seeds

Recommended for Your Garden

✂️
Pruning Shears $12-30

Sharp bypass pruners for clean cuts on fruit trees, berry bushes, and woody herbs.

🌱
Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

Related Plants

Frequently Asked Questions

When should I plant Hardy Kiwi in Zone 5b?

In Zone 5b, plan your Hardy Kiwi planting around the average last frost date of April 18. Transplant seedlings around May 9.

Can Hardy Kiwi grow in Zone 5b?

Yes, Hardy Kiwi can grow well in Zone 5b, hardy in USDA zones 3a through 8b. Zone 5b has a growing season of approximately 178 days, which is sufficient for Hardy Kiwi (1095-1825 days to maturity).

What is the last frost date for Zone 5b?

The average last spring frost in Zone 5b is around April 18, and the first fall frost is around October 13. This gives a growing season of approximately 178 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Hardy Kiwi?

Good companion plants for Hardy Kiwi include Comfrey, Lavender. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Free Printable Garden Planner

A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — 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.