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How to Grow Kiwi Midnight

Kiwi Midnight

Actinidia arguta 'Midnight'

vine

Kiwi Midnight is a hardy kiwi cultivar that produces small, smooth-skinned, dark purple to black fruits with sweet, tropical flavor. Unlike fuzzy kiwis, these fruits are eaten whole with no peeling required. This vigorous vine is cold-hardy and produces prolifically with proper pollination.

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Example Kiwi Midnight timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Kiwi Midnight

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Kiwi Midnight

    Around Oct 14

    ≈ 180 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Kiwi Midnight dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily for best fruiting
💧
Water: Consistent moisture during growing season; water deeply 1-2 times weekly. Reduce watering in winter. Avoid waterlogging.
📏
Spacing: 8 inches
📅
Days to maturity: 180-240 days from flowering to fruit ripeness
🌱
Planting depth: Plant at same depth as nursery container; shallow roots require mulching

Soil

Type: Well-draining loamy soil with organic matter
pH: 5.5-7.0
Amendments:
Compost Peat moss Aged manure Perlite or coarse sand for drainage

Growing Zones

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Zones 4-8; very cold-hardy compared to fuzzy kiwis

4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

1

Establishment

Year 1

Young vine with tender stems and developing root system; sparse foliage

Install sturdy support structure immediately. Water regularly. Prune to single leader. Mulch 3-4 inches around base.

2

Vegetative Growth

Years 1-2

Vigorous vining growth with dense, heart-shaped leaves; vine extends along support structure

Train vines horizontally on trellis or pergola. Prune side shoots to maintain structure. Apply balanced fertilizer monthly.

3

Flowering

Late spring to early summer (4-6 weeks)

Small, fragrant white-green flowers appear in leaf axils along vines; male and female flowers on separate plants

Ensure pollinator access. Plant both male and female vines (1 male per 8-9 females). Thin crowded flower clusters if needed.

4

Fruit Development

8-12 weeks

Small oval fruits develop, initially green then darkening to dark purple or black; fruits about cherry to grape size

Thin fruit to 4-6 inches apart for larger berries. Continue watering deeply. Apply potassium-rich fertilizer.

5

Ripening & Harvest

4-6 weeks (September-October in North America)

Fruits reach full dark color and soften slightly; skin becomes smooth and waxy

Monitor ripeness by taste and gentle pressure. Harvest when fruits yield slightly to pressure. Store in refrigerator.

Companion Planting

Plan your garden →

Plant with:

Borage Comfrey Nasturtium Marigold Oregano

Avoid planting near:

Black walnut Fennel Potatoes

Common Pests

  • Spray with water to dislodge; use insecticidal soap or neem oil for severe infestations

  • Hand-pick in early morning; use row covers on young vines; apply neem oil

  • Prune affected branches; apply horticultural oil during dormant season

  • Remove affected leaves; apply spinosad or neem oil

Uses

🍳

Fresh eating and desserts

Culinary

Eat whole, skin and all—no peeling required. Sweet tropical flavor with grape and kiwi notes. Perfect for fruit salads, desserts, smoothie bowls, and fresh snacking. [source]

🍳

Jam and preserves

Culinary

High natural pectin content makes these fruits ideal for jams and jellies. Rich flavor requires less added sugar than fuzzy kiwis. [source]

💊

Nutritional supplement

Medicinal

Rich in vitamin C, antioxidants, and actinidin (a natural enzyme). Traditional use supports digestion and immune health. [source]

🏠

Ornamental garden vine

Household

Dense foliage provides screening and shade. Fragrant flowers attract pollinators. Decorative dark fruit adds visual interest to landscapes. [source]

🦋

Pollinator and wildlife habitat

Wildlife

Fragrant flowers attract bees and butterflies. Ripening fruit provides food for birds and beneficial insects. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Kiwi Midnight fruits ripen in late September to October (Northern Hemisphere). Harvest when fruits are fully dark and yield slightly to gentle pressure—they should be soft enough to press with a thumb but not mushy. Fruits do not ripen further after picking, so wait until fully mature on the vine. Store at 32-41°F for up to 3 months.

Fun Facts

  • 🌱 Kiwi Midnight is hardy enough to survive winters in northern regions (Zone 4) where fuzzy kiwis would perish, making fresh kiwis possible in much colder climates.
  • 🌱 The fruits are called 'kiwiberry' or 'hardy kiwi' and can be eaten whole without peeling—the skin is thin, smooth, and completely edible, unlike fuzzy brown kiwis.
  • 🌱 Kiwi vines are dioecious (separate male and female plants), so you must plant at least one male vine to pollinate multiple female fruit-bearing vines; male vines produce no fruit but essential pollen.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Cultivar Full Sun Mulch pH Pollination Trellis
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