Kiwi Vines
From the tropically flavored fuzzy kiwi to the grape-sized, pop-in-your-mouth hardy kiwi — a vigorous, long-lived vine that rewards patient growers with extraordinary harvests. Matching type to climate is everything.
At a glance
Why grow kiwi?
Kiwi vines (Actinidia species) are among the most rewarding long-term investments a home gardener can make. Once established on a sturdy trellis, a mature kiwi vine is spectacular in every season: bold, tropical-looking foliage in summer, fragrant flowers in spring, and — in the case of A. kolomikta — stunning pink-and-white variegated leaves that make it one of the most ornamental fruiting vines in horticulture.
The fruit itself is the real reward. Hardy kiwi (A. arguta and A. kolomikta) produce grape-sized berries with thin, edible skin — no peeling required. Their flavor is intensely sweet, often described as a concentrated blend of kiwi, strawberry, and pineapple. Eaten straight from the vine at peak ripeness, they bear little resemblance to the fuzzy kiwi on grocery store shelves. Fuzzy kiwi (A. deliciosa) in the home garden, given the right long warm season, produces the large, familiar fruit in its full flavor potential — something the commercially harvested, pre-ripened store version can't match.
Kiwi vines are also exceptionally long-lived. A well-sited, properly trellised vine can remain productive for 50 years or more. The time investment in establishment is real — typically three to five years before meaningful harvest — but the reward is a plant that will outlast most other things in your garden.
The most critical decision before planting is matching kiwi type to your climate. Fuzzy kiwi needs a long, very warm summer to ripen fruit — it fails in most of the Pacific Northwest and northern US. Hardy kiwi varieties were developed specifically for cooler climates with shorter growing seasons and are the right choice for the vast majority of Raintree's customers. Getting this decision right determines whether you harvest prolifically or struggle for years with a vine that never quite ripens.
The three types of kiwi
Choosing the right type for your climate is the single most important decision you will make. The three Actinidia species available to home growers differ dramatically in cold hardiness, heat requirement, fruit size, and vine vigor.
Fuzzy Kiwi — A. deliciosa
Zones 7–9. The grocery store kiwi. Large fruit with thick, fuzzy brown skin; sweet, familiar flavor. Requires a long, very warm growing season — typically 225–240 frost-free days (OSU Extension PNW-507; UC ANR). Hardy to about 10°F when dormant, but new growth and flowers are frost-sensitive. Not well-suited to the PNW west of the Cascades except in the warmest Willamette Valley and southern Oregon locations. Vines are exceptionally vigorous — 20+ feet of growth annually — and require a heavy-duty trellis. Chill hour requirement is lower than hardy types (a few hundred hours).
Hardy Kiwi — A. arguta
Zones 5–9. The workhorse for most US home growers. Grape-sized fruit with smooth, edible skin; intensely sweet flavor at peak ripeness. Ripens earlier than fuzzy kiwi, making it suitable for shorter growing seasons. Hardy to approximately −10 to −25°F when dormant, depending on conditions and cultivar (OSU Extension EM-9322). Vine vigor is comparable to fuzzy kiwi — plan for 20+ feet of growth per year and a very sturdy trellis. Requires approximately 800 chill hours. The right choice for most Pacific Northwest, Northeast, and upper Midwest growers.
Super-Hardy Kiwi — A. kolomikta
Zones 3–9. The cold-hardiest kiwi — survives to approximately −40°F. About half as vigorous as arguta, making it more manageable in smaller spaces. Fruit is similar in size and flavor to arguta; ripens the earliest of all kiwi types (late August at Raintree). Exceptionally ornamental — male plants produce striking pink-and-white variegated leaves. Sensitive to intense afternoon sun in hot, dry locations — some afternoon shade is beneficial in those climates. The right choice for Zones 3–5 growers and anyone wanting a slightly less aggressive vine.
Fuzzy and arguta kiwi may cross-pollinate in some locations, but this is not reliable everywhere — choosing a male of the same species is the safer approach for reliable fruit set. Kolomikta kiwi flowers earlier than the other two types and does not cross-pollinate with fuzzy or arguta. If growing kolomikta, you must have a kolomikta male — an arguta or fuzzy male will not serve it.
For the vast majority of PNW growers, A. arguta is the correct choice. The maritime climate west of the Cascades — cool summers, mild winters, adequate moisture — suits arguta well and produces exceptional flavor. A. kolomikta is the right selection for growers in colder Zone 3–5 interior locations (eastern WA, higher elevations) or those who want a less vigorous vine. Fuzzy kiwi is only a realistic option in the warmest parts of the southern Willamette Valley, the Rogue Valley, and similar long-season microclimates — and even there, ripening can be marginal in cool summers. WSU Extension confirms that A. arguta performs reliably in western Washington and Oregon.
Site selection and trellis
Sun and exposure
Kiwi vines require a minimum of 8 hours of direct sunlight measured in early summer (late June through early August) for best fruit production. Sufficient sun exposure triggers the initiation of flower buds for the following season — without adequate light, there will be no flowers and no fruit regardless of vine health. Fruit ripening and flavor development are also directly tied to the carbohydrate production driven by sun exposure.
A. kolomikta is the exception: in hot, dry climates with intense afternoon sun, this species is prone to sunscald on the leaves. In those locations, a site with morning sun and afternoon shade, or dappled light, is preferable.
In the PNW, south- or southwest-facing exposures that maximize heat accumulation are strongly preferred — particularly for arguta varieties, which benefit from every unit of warmth available to fully ripen fruit and develop flavor.
Trellis — plan before you plant
A sturdy trellis is not optional for kiwi — it is a prerequisite. A mature, loaded kiwi vine can weigh several hundred pounds, and the weight of vigorous annual growth is substantial. A trellis that fails after five years of establishment is a significant setback. Build it before or at planting time, and build it to last.
The standard kiwi trellis is a T-bar design approximately 6 feet tall, with a crossbar 4 feet wide supporting 4–5 parallel wires running the length of the row. Posts should be set 18–24 inches deep in concrete; end posts braced with diagonal supports or deadmen anchors. Use 12-gauge high-tensile wire or heavier. A pergola, sturdy arbor, or overhead structure can also work well if robust enough.
Spacing
| Type | Female spacing | Male spacing | Row spacing |
|---|---|---|---|
| Fuzzy kiwi (A. deliciosa) | 20 ft apart | 10 ft apart | 15–18 ft |
| Hardy kiwi (A. arguta) | 20 ft apart | 10 ft apart | 15–18 ft |
| Super-hardy kiwi (A. kolomikta) | 10 ft apart | 5 ft apart | 10–12 ft |
When planting multiple females, position the male in the center of the row rather than at an end. The pollinizer should be within 100 feet of females with no sight-line obstructions that would impede bee movement.
Pollination
Most kiwi species are dioecious — individual plants are either male or female, and a male pollinizer is required for fruit production on standard female varieties. For most varieties, a male planted nearby is mandatory; without one, a female vine will produce flowers every year and no fruit.
Two commercially available varieties can set fruit without a dedicated male plant. A. deliciosa 'Jenny' (carried by Raintree) is fully self-fertile — true hermaphroditic flowers with functional male and female parts on the same vine. A. arguta 'Issai' is partially self-fertile (parthenocarpic): it can produce fruit alone, but yields are significantly lower than when a male arguta is planted nearby. For best results with Issai, treat it as you would a standard female and provide a male pollinizer. All other varieties in the guide require a male of the same species for reliable fruit set.
For standard dioecious varieties, the ratio of females to males can be up to 8:1 — one male can serve up to eight female vines — but the male must be within reliable bee-flight range. A good working distance is no more than 100 feet between the male and the furthest female, with no solid barriers (buildings, dense hedges) blocking the path between them.
Bloom timing compatibility is critical and species-specific:
- A. deliciosa (fuzzy) and A. arguta (hardy) may cross-pollinate where their bloom windows overlap, but this is not consistent across all locations and climates. Using a male of the same species is the reliable approach.
- A. kolomikta (super-hardy) blooms earlier than the other two species and does not cross-pollinate with fuzzy or arguta. Kolomikta females require a kolomikta male.
Bees are the primary pollinators. Avoid applying any insecticides during the bloom window, as kiwi flowers produce pollen and nectar attractive to bees and any pesticide application during bloom will reduce pollination and fruit set.
Cool, wet PNW springs can suppress bee activity during the kiwi bloom window. Bees are less active below 55°F. In cold springs, consider hand pollination to supplement bee activity: collect pollen from open male flowers using a soft brush or cotton swab and transfer it to open female flowers in the morning when flowers are freshly open. This is particularly worthwhile in the first few years of production when fruit set is critical to assess the vine's performance.
Variety selection
Within each type, variety selection shapes ripening timing, fruit size, and winter hardiness. The following are widely available, well-tested varieties; Raintree's catalog includes additional selections suited to specific regional conditions. Unless a variety is noted as self-fertile, plan for both a female fruiting variety and the appropriate male pollinizer of the same species.
You may encounter the name "kiwiberry" on grocery store labels, at farmers markets, or in OSU Extension publications. Kiwiberry is simply a marketing term for Actinidia arguta — the same species this guide calls "hardy kiwi." The name gained popularity in the 2010s to distinguish the small, smooth-skinned, eat-whole fruit from the large fuzzy grocery store kiwi. Baby kiwi, cocktail kiwi, and grape kiwi are other names for the same fruit. If you're reading OSU Extension's EM-9322 or PNW-507 alongside this guide and see "kiwiberry," it refers to the arguta varieties listed below.
| Variety | Type | Role | Notes |
|---|---|---|---|
| Jenny | Fuzzy | Self-fertile | The first self-fertile fuzzy kiwi — hermaphroditic flowers produce both male and female pollen and ovules on the same vine. No male required. Fruit is roughly half the size of Hayward; green flesh; sweet flavor; ripens late summer to early fall. Vine grows 10–20 ft; requires trellis. Zones 7–9. Carried by Raintree. |
| Hayward | Fuzzy | Female | The commercial standard fuzzy kiwi — the variety most commonly sold in grocery stores. Large fruit; excellent flavor when vine-ripened in a warm climate. Zones 7–9. Requires a long, warm growing season — poorly suited to the PNW except in the warmest microclimates. Pairs with Chico Male or Tomuri. |
| Chico Male | Fuzzy | Male | The standard pollinizer for fuzzy kiwi. One male required per planting of up to 8 female vines. Zones 7–9. |
| Issai | A. arguta | Partially self-fertile | A compact, partially self-fertile (parthenocarpic) arguta variety — the most manageable for small spaces. Can set fruit without a dedicated male, but yields are significantly improved with a male arguta nearby. Not a true hermaphrodite like Jenny; think of it as a capable solo producer that does substantially better with a pollinizer. Fruit is smaller than other arguta types; flavor excellent. Zones 5–9. (Missouri Botanical Garden; OSU Extension) |
| Ananasnaya (Anna) | A. arguta | Female | One of the most popular arguta varieties for home growers. Medium-large fruit; exceptional sweet flavor with strawberry-pineapple notes. Very productive. Well-tested in the PNW. Zones 5–9. Requires an arguta male. |
| Ken's Red | A. arguta | Female | A distinctive arguta variety with red-purple skin and flesh. Excellent flavor; striking appearance. Slightly smaller fruit than Anna. Good PNW performer. Zones 5–9. Requires an arguta male. |
| Meader Male | A. arguta | Male | A widely used male pollinizer for A. arguta. Hardy to approximately −25°F. Zones 5–9. |
| Arctic Beauty | A. kolomikta | Female | The most commonly grown kolomikta female. Small, very sweet fruit; ripens the earliest of all kiwi types. Exceptionally cold-hardy to approximately −40°F. Ornamental variegated foliage present on both sexes; OSU notes male plants typically display more vivid variegation. Zones 3–8. Requires a kolomikta male. |
| Kolomikta Male | A. kolomikta | Male | Required pollinizer for kolomikta females. Produces the distinctive pink-and-white variegated foliage that makes this species ornamentally outstanding. Zones 3–8. Does not cross-pollinate with arguta or fuzzy kiwi. |
Soil preparation and planting
Soil
Kiwi prefer well-drained, consistently moist soil that is moderately rich in organic matter, with a pH of 5.5–6.5. OSU Extension's producer guide (PNW-507) puts the optimum for A. arguta at 5.6–6.0; the broader 5.5–6.5 range reflects guidance from Wisconsin Extension, UC ANR, and Oklahoma State Extension for all three kiwi species. Test your soil pH before planting and amend if needed — ground limestone raises pH in acidic soils; elemental sulfur lowers it in alkaline ones. Contact your local cooperative extension office for region-specific amendment rates.
Improve the planting area by working 1–2 inches of plant-based organic matter (compost, aged wood chips, or coconut coir) into a zone 1.5–2 times the diameter of the planting hole and up to one foot deep. Kiwi roots are sensitive to waterlogging — avoid low spots or areas where water pools after rain. Raised planting mounds or beds improve drainage in heavy soils.
Planting
Plant container-grown kiwi in early spring after the last frost date has passed. Dig a hole twice as wide as the root ball; backfill with the amended native soil. Set the plant at the same depth as it was in the container. Do not add fertilizer directly to the planting hole — it can burn tender new roots. Water thoroughly after planting and apply a 2–4 inch mulch layer immediately, keeping mulch pulled back 4–6 inches from the crown to prevent rot and discourage vole activity.
Erect the trellis before or at planting time, not after. Beginning to train the vine to the trellis structure in its first season establishes the permanent framework that all future growth will hang from.
In the PNW, kiwi vines benefit from the addition of generous compost at planting and a maintained wood-chip mulch as they establish. Western WA and OR soils are often already in the desired pH range for kiwi — test before amending. Protect new plants from late spring frosts in their first year; young kiwi growth is frost-tender even in hardy varieties. A south- or southwest-facing wall or fence can provide the reflected heat that significantly improves ripening in the PNW — particularly valuable for arguta varieties in cooler-summer locations.
Chill hours
Like many temperate fruit plants, kiwi vines require a period of winter cold — measured in "chill hours" (hours at or below 45°F) — to break dormancy uniformly and flower reliably in spring. Without sufficient chill, buds break unevenly, flowering is sparse and prolonged, and fruit set is reduced.
Chill hour requirements vary by species and, to some degree, by growing location and the level of dormancy achieved. As a general guide:
- A. deliciosa (fuzzy): relatively low chill requirement — a few hundred hours; suited to mild-winter regions
- A. arguta (hardy): approximately 800 chill hours; well-matched to most temperate US climates
- A. kolomikta (super-hardy): similar to arguta; approximately 800 chill hours
If you are in a mild-winter location where temperatures rarely drop below 40°F for extended periods, contact your local cooperative extension service to determine your typical accumulated chill hours before selecting a variety. Growers in most of the PNW, Northeast, and upper Midwest will have more than adequate chill hours for arguta and kolomikta without concern.
Training and pruning
Kiwi vines are among the most vigorous plants in the home garden — they will grow 10–20 feet in a single season when established. Without consistent pruning, they rapidly become an unmanageable tangle of unproductive wood. Annual pruning is essential, not optional. The goal is to maintain a clear permanent framework of main canes from which short, productive fruiting laterals are renewed each year.
The permanent framework
In the first two to three years, focus entirely on establishing the permanent structure rather than pursuing fruit. Select one or two strong canes to become the main trunk(s); tie these to the trellis and remove competing growth. Once the main trunk reaches the trellis wire, train two to four horizontal "arms" along the wires in both directions from the trunk — these permanent arms will carry the fruiting laterals for the life of the vine.
Annual pruning — dormant season
Prune during full dormancy — mid-winter in most climates. Do not delay into late winter or early spring: kiwi vines "bleed" sap heavily if cut after the sap begins to flow. In the Willamette Valley and southwestern Oregon, OSU Extension recommends pruning female vines in December through January; in colder regions (eastern WA and OR), December through February is acceptable (OSU Extension EM-9322). Male vines are pruned differently — after bloom in late June, not in winter. Pruning males in winter removes the current season's flowering wood.
During annual pruning of female vines, shorten fruiting lateral canes to 6–10 buds from their base (NC State Extension; Missouri Botanical Garden). Kiwi fruit is produced on the current season's growth arising from buds formed the previous year — this is the wood to protect and renew. Remove most of the wood that fruited the previous year and any twisted, crossing, or weak growth. The goal after pruning is a clean, open framework with well-spaced fruiting laterals that will carry this year's crop. On mature plants, OSU Extension notes that approximately 70% of last season's growth is removed in a full dormant pruning.
Kiwi vines produce so much growth in summer that they can shade out fruiting wood and make the vine unmanageable if not periodically thinned during the growing season. Pinch or cut back any shoots that are not needed for the permanent framework — particularly vigorous "water sprouts" growing straight up from the main arms. Summer pruning improves fruit sizing, air circulation, and overall vine manageability. It does not replace winter pruning.
OSU Extension has two excellent free resources for PNW kiwi growers. Growing Kiwifruit in Your Home Garden (EM-9322) covers home garden training, pruning, variety selection, and frost management. Growing Kiwifruit: A Guide to Kiwiberries and Fuzzy Kiwifruit for Pacific Northwest Producers (PNW-507) goes deeper on variety trials, irrigation, and commercial-scale pruning.
Watering and feeding
Established kiwi vines require consistent, deep irrigation through the growing season. Target approximately 1 inch of water per week over the root zone during the growing season — equivalent to roughly ¾ to 1 gallon per square foot of soil surface, or 7–10 gallons per week for a typical 3-foot-diameter planting area. Do not water lightly each day; this produces a wet surface and dry root zone. Instead, water deeply once or twice a week (more frequently in fast-draining soils) and allow the top 1–2 inches to dry between waterings. The soil should remain moist to about 12 inches deep.
In the PNW, spring rainfall typically covers irrigation needs through June. Supplemental irrigation becomes critical in July through September — exactly the period when fruit is sizing and ripening. Inadequate water during this window directly reduces fruit size, flavor, and sugar development. Drip irrigation at the base of the vine is ideal: it delivers water to the root zone while keeping foliage dry, which reduces fungal disease pressure.
Fertilize with a balanced all-purpose or fruit-tree-and-shrub fertilizer, or apply 2–3 inches of well-rotted compost over the root zone annually in early spring. Avoid fertilizers high in nitrogen applied after early summer — late-season nitrogen encourages soft new growth that is susceptible to winter damage. If the vine is producing a foot or more of new growth annually and has healthy, deep green foliage, additional fertilizer may not be needed. A generous 2–4 inch mulch of straw, leaves, or wood chips conserves moisture, moderates root zone temperature, and improves soil health over time — keep it pulled back from the crown.
Harvest and ripening
Kiwi ripening timing varies significantly by type and location. As a rough guide at Raintree's location (north of Mount St. Helens, WA): A. kolomikta ripens in late August; A. arguta ripens September through October; A. deliciosa (fuzzy) ripens October through November in suitable climates.
Hardy kiwi (A. arguta and A. kolomikta)
Hardy kiwi do not ripen uniformly — check frequently as the season progresses. A ripe arguta or kolomikta berry gives slightly to gentle pressure, detaches easily from the stem with a gentle twist, and tastes sweet with no astringency. Unripe berries are firm and starchy; slightly overripe berries are very soft and may ferment on the vine. Harvest by gently pinching and twisting individual ripe berries from the cluster; or harvest slightly underripe and ripen at room temperature for a few days. Ripe hardy kiwi refrigerate well for 2–4 weeks; freeze excellently for long-term storage.
Fuzzy kiwi (A. deliciosa)
Fuzzy kiwi is typically harvested somewhat firm and allowed to soften (ripen) off the vine — similar to commercial handling. Harvest when the seeds inside have turned black (cut a fruit to check) and sugar content is adequate (a refractometer reading of 6.2° Brix or higher). Store at room temperature until soft; refrigerate for up to 4–6 weeks once firm-ripe.
Hardy kiwi vines are cold-hardy, but the fruit itself is damaged by hard frost. In areas where early fall frosts occur before fruit fully ripens, harvest the crop while still firm when frost threatens — it will continue to ripen off the vine at room temperature. Do not leave ripe or nearly ripe fruit on the vine through a frost event.
Growing in containers
Kiwi can be grown in containers, though the vigorous species (fuzzy and arguta) require large containers and substantial trellising. The less vigorous A. kolomikta is the most practical for container culture. Use a minimum 20-gallon container for any kiwi vine; fuzzy and arguta types will benefit from 25–30 gallon or larger containers at maturity.
Use a quality potting mix with added compost — do not use garden soil in containers. Gradually increase container size over the first several years rather than starting in a very large pot; this supports healthy root development and prevents waterlogging in excess soil volume. Ensure excellent drainage — kiwi roots will not tolerate standing water.
Container kiwi require more frequent watering and somewhat more frequent fertilization than in-ground vines. A slow-release balanced fertilizer applied in spring and early summer is appropriate. In Zone 6 and colder, container roots have no insulation from surrounding soil — move containers to an unheated but frost-protected structure (garage, barn) in winter to prevent root freeze. Provide a sturdy trellis or support structure capable of bearing the weight of a mature loaded vine.
Container kiwi on a PNW deck or patio is most practical with A. kolomikta, which is roughly half as vigorous as arguta and better suited to managed container culture. Ensure containers have free drainage — our wet winters mean a container that doesn't drain freely will waterlog roots. A south-facing patio wall or deck is an ideal microclimate: reflected warmth from the surface accelerates ripening and improves flavor in cool-summer years.
Common problems
- An 8-foot woven wire fence is the most reliable protection — deer can jump standard 6-foot fences
- Individual plant cages of heavy hardware cloth protect young vines in the establishment years
- Repellents (commercial or homemade) may provide short-term deterrence but are not reliable season-long protection
- Once vines are established and growing above browse height, deer damage typically decreases
- Keep mulch pulled back 4–6 inches from the base of canes at all times — mulch piled against the crown is a vole highway in winter
- Keep grass and vegetation cleared 1–2 feet from the base of the trellis
- Wrap the base of young canes with vinyl tree guards or hardware cloth in fall before snow cover arrives
- Check for damage in early spring when snow recedes
- Monitor with SWD traps from late summer through harvest
- Harvest frequently as fruit ripens — do not leave ripe fruit on the vine
- Refrigerate harvested fruit promptly
- Spinosad-based insecticides (Monterey Garden Insect Spray; Entrust for organic) are effective when adults are detected; apply per label
- For more information: OSU Extension SWD resources
- Maintain adequate irrigation — water-stressed vines are far more susceptible to mite damage
- Encourage natural predators (predatory mites, lacewings) by minimizing broad-spectrum pesticide use
- Insecticidal soap with ultra-light oil is effective for active infestations
- Release predatory mites (Phytoseiidae) for persistent infestations
- Dormant oil applied in late winter reduces overwintering mite egg populations
- Natural predators (lady beetles, parasitic wasps, lacewings) often provide adequate control — encourage with habitat plantings
- Strong water spray dislodges aphids from stems and shoots
- Insecticidal soap for heavier infestations
- Control ants, which protect aphid colonies from natural predators
- Monitor with traps; check stopbmsb.org for current management recommendations
- Harvest promptly as fruit ripens; remove dropped or damaged fruit
- If found overwintering in or near your home in fall, vacuum rather than crushing (crushing releases the defensive odor)
- Site vines away from frost pockets — low spots in the landscape where cold air pools on still, clear nights
- A south-facing wall provides reflected warmth and can keep frost from settling on the vine on marginal nights
- Row cover fabric draped over the vine before sunset on nights when frost is forecast at 32°F or lower protects emerging growth; remove when temperatures rise above freezing (OSU Extension)
- Do not apply nitrogen fertilizer early in spring — it encourages premature growth that is more frost-vulnerable
Seasonal care calendar
- Annual dormant pruning of female vines — December through January in the Willamette Valley; December through February in colder regions (OSU Extension EM-9322); shorten fruiting laterals to 6–10 buds; remove ~70% of prior season's growth
- Male vines are NOT pruned in winter — prune males after bloom in late June to avoid removing flowering wood
- Pull mulch back from crown; check for vole damage at the base of canes; replace trunk guards if worn
- Inspect and repair trellis before vine wakes up — much easier to work on without leaves and new growth
- Apply balanced fertilizer or 2–3 inches of compost over root zone before growth begins
- Restore mulch layer to 2–4 inches after fertilizing; keep back from crown
- Monitor overnight temperatures — cover emerging new growth on nights below 30°F
- Do NOT apply pesticides during bloom — protect pollinators during the flowering window
Kolomikta blooms first, typically April–May in the PNW. Arguta blooms slightly later. Monitor for late frosts through May; late freezes are not uncommon west of the Cascades in April. Hand-pollinate in cold, wet springs when bee activity is suppressed.
- Summer pruning of female vines — cut back vigorous non-fruiting shoots; shorten shoots that have set fruit to 4–5 leaves beyond the last fruit; remove water sprouts and tangled growth from the canopy
- Prune male vines now (late June, after bloom) — remove most of the current season's flowering shoots; leave enough healthy framework for next year's bloom
- Begin supplemental irrigation as spring rains diminish — critical in the PNW from July onward
- Monitor for mites in hot, dry weather — inspect undersides of leaves
- Begin monitoring kolomikta fruit for ripeness in late August; arguta follows September–October
- Set SWD traps as fruit begins to approach ripeness; apply spinosad if threshold reached
- Harvest ripe hardy kiwi every few days; refrigerate promptly or allow firm-harvested fruit to ripen at room temperature
- Harvest arguta before hard frost if frost threatens before full ripeness
- Continue deep irrigation through harvest
- Complete harvest of any remaining arguta or fuzzy fruit before first hard frost
- Continue irrigation until vines are fully dormant if fall is dry
- Install or check trunk guards at the base of canes before first snow
- Enjoy ornamental fall color — kiwi vines produce attractive yellow fall foliage
- Apply fresh 2–4 inch mulch layer over root zone; keep pulled back from crown
- Order any new plants or additional varieties early — popular kiwi selections sell out quickly
- Plan dormant pruning work; gather tools and sharpen loppers and pruning saw