Kiwi

A vigorous deciduous vine requiring both male and female plants for pollination and a strong trellis for support. One male plant can pollinate up to eight females, so plan your planting layout accordingly to maximize fruit production. Kiwi vines need heavy annual pruning in winter to control their rampant growth and encourage fruiting on short lateral branches. Hardy kiwi varieties with smooth, grape-sized fruits are available for colder climates and can tolerate temperatures well below zero.

Kiwi is most reliably propagated by grafting or from rooted cuttings taken in late winter from healthy, productive vines. Take hardwood cuttings six to eight inches long, dip the base in rooting hormone, and insert into moist perlite or sand under a humidity dome. Bottom heat of 70 degrees Fahrenheit accelerates rooting in four to six weeks. Seed propagation is possible but impractical, as seedlings take five to nine years to fruit and gender cannot be determined until flowering. Stratify seeds for four weeks before sowing.

The Season Plate

Your Kiwi Year

Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1

Sow Kiwi Mar – Apr, pick Oct – Nov. Set your climate below and every date on this plate re-times itself.

Sowing window

Mar – Apr

re-timed to your frost dates

Plant out

after Apr 2

once frost risk has passed

First picking

around Mar 14

≈ 730 days from sowing · 50–100kg per plant

Composed for —ColdTemperateMildWarmUse my locationUsed once to set your season · only the zone is kept

Week-by-week Kiwi reminders watering, feeding and pruning, timed to your dates

In the app

Frost alerts for your garden a warning before a cold night costs you the crop

In the app

Succession sowing dates so the picking never gaps mid-season

In the app

Keep my dates — free for 7 daysWe nudge you as each window opens · cancel anytime

Kiwi vines are vigorous deciduous climbers that require a sturdy trellis or pergola capable of supporting several hundred pounds of foliage and fruit. Install a T-bar trellis system with heavy gauge wire before planting, as mature vines can span fifteen to thirty feet. Plant in a sheltered location protected from late spring frosts, which can damage emerging shoots, and from strong winds that shred the large, soft leaves.

Both male and female plants are required for pollination, with one male vine sufficient for up to eight females. Plant vines in spring in deep, well-drained soil enriched with compost, spacing them ten to fifteen feet apart along the trellis. Water deeply and regularly during the first two growing seasons to establish a strong root system. Kiwi vines are heavy feeders and benefit from balanced fertilizer applied in early spring and again after fruit set.

Prune kiwi vines aggressively in winter, removing up to seventy percent of the previous season's growth. Train a single trunk up to the trellis wire, then develop permanent lateral arms along the wire. Fruiting occurs on short lateral shoots arising from one-year-old wood, so annual renewal pruning is essential for consistent production. Summer pruning to remove tangled growth improves light penetration and air circulation within the canopy.

Plant lavender, marigolds, and bee-friendly herbs near kiwi vines to attract pollinators essential for fruit set. Grape vines can share similar trellis systems and growing conditions, making them practical neighbors in the garden. Nitrogen-fixing cover crops such as clover or vetch planted beneath the trellis enrich the soil naturally. Avoid planting near walnut trees, as juglone toxicity can stunt vine growth and reduce productivity.

The Society Table

Lavender belongs beside it. Walnut Tree doesn't.

Old growers' knowledge, checked against Kiwi's real companion table below — test any plant you're growing.

Grows well in the company of · 3

LavenderMarigoldGrape

Keep apart · 1

Walnut Tree

Plant Kiwi with good neighboursThe planner flags conflicts before they're in the ground

Kiwi vines prefer deep, fertile, well-drained soil with a pH of 5.5 to 7.0. Heavy clay soil must be amended with generous amounts of compost and coarse organic matter to ensure adequate drainage. Apply a balanced fertilizer such as 10-10-10 in early spring as buds begin to swell, and side-dress with compost or aged manure in midsummer. Avoid high-nitrogen fertilizers late in the season, which promote soft growth susceptible to winter damage. Mulch heavily with organic matter to retain moisture and suppress weeds.

Ideal Temperature

Hardiness Zone Compatibility

Harvest kiwi fruit in late fall before the first hard frost, when the seeds inside have turned black and the flesh begins to soften slightly when pressed. Pick all fruit at once and ripen them off the vine, as kiwi does not ripen well while still attached. Place harvested fruit in a paper bag with an apple or banana to accelerate ripening through ethylene gas exposure. Ripe kiwi yields to gentle pressure and has a fragrant, sweet aroma at the stem end.

Storage & Preservation

Unripe kiwi can be stored in the refrigerator for up to three months, providing an extended harvest window. Once ripened, consume within one to two weeks. For freezing, peel and slice the fruit, then spread on a baking sheet to flash-freeze before transferring to freezer bags. Kiwi makes excellent jam, chutney, and dried fruit slices. The fruit also freezes well as puree for smoothies and sorbets. Avoid cooking kiwi with dairy-based desserts, as an enzyme in the fruit breaks down milk proteins.

Troubleshooting Common Problems

Late spring frost damage to emerging shoots is the most common problem, as kiwi breaks dormancy early. Protect young growth with frost cloth when temperatures threaten to drop below 30 degrees Fahrenheit. Poor fruit set often results from inadequate pollination due to missing or poorly placed male vines. Cats are strongly attracted to kiwi vines and can damage young plants by rubbing against them, so protect trunks with wire mesh. Sunburn on exposed fruit occurs in extremely hot climates and can be prevented by maintaining adequate leaf cover.

Growing Tips

1. Kiwi vines are dioecious — they have separate male and female plants. You must grow at least one male vine alongside your female vines to achieve fruit set. One male pollinator can service up to eight female vines, and it must be of a variety that flowers at the same time as your female plants.
2. Invest in a genuinely robust trellis system before planting. Mature kiwi vines are extraordinarily heavy and vigorous, and a flimsy structure will fail within a few years. T-bar posts set in concrete at 2.5m height with tensioned galvanised wires rated to at least 200kg are the minimum specification for a long-term planting.
3. Plant kiwi vines in a sheltered position that protects the tender spring growth from late frosts. A south-facing or west-facing wall in the UK and northern Europe provides both shelter and reflected heat that significantly improves fruiting in marginal climates. Avoid frost pockets at all costs.
4. Feed generously but intelligently. Kiwi vines are heavy nitrogen feeders in spring and early summer to support vigorous shoot growth, but switching to a high-potassium feed from midsummer onward is essential for quality fruit development and ripening. Overfeeding nitrogen late in the season promotes soft, frost-vulnerable growth.
5. Never let the soil dry out completely during the growing season. Kiwi vines have relatively shallow, fibrous root systems that are sensitive to drought stress, particularly when the vine is in full fruit. Install a drip irrigation system if possible, and mulch heavily each spring to conserve soil moisture and regulate root temperature.
6. Annual pruning is non-negotiable for sustained productivity. Without it, the vine rapidly becomes an unmanageable tangle of unproductive wood. The goal of winter pruning is to maintain a clean system of permanent lateral arms from which short fruiting spurs (2-3 buds) are spaced at regular 50cm intervals.
7. Kiwi vines respond extremely well to magnesium. If leaves develop interveinal yellowing (chlorosis) during the growing season, apply Epsom salts (magnesium sulphate) as a foliar spray at 20g per litre, or water in a soil drench. Magnesium deficiency is common on light, sandy, or acidic soils.
8. In cooler climates, consider growing the hardy kiwi (Actinidia arguta) or the super-hardy Actinidia kolomikta instead of the common kiwi (Actinidia deliciosa). These species tolerate far greater cold, fruit more reliably in short summers, and the smooth-skinned fruits can be eaten whole without peeling, though they are considerably smaller.
9. Harvesting requires patience and a refusal to judge by softness. Kiwi fruits must be cut open to check that the seeds have turned black before harvesting the crop. Fruits harvested too early will never develop full sweetness, even if they soften during storage. Once seeds are black, harvest promptly before autumn frosts damage the crop.
10. Protect young vines from cats. Kiwi foliage, and particularly the root and stem, contain nepetalactone compounds similar to those found in catnip and can attract cats who may dig up or damage newly planted vines. A simple wire cage around young plants provides effective protection.