Little Leaf Cucumber
Cucumis sativus
Katrina produces an early to midseason crop in protected culture. Known for its ability to set fruit under heat stress, Katrina is very high yielding with excellent uniformity. This seedless, thin-skinned cuke is best when harvested at 5 1/2-6 1/2" long - a great size between Unistars and the larger Socrates. Gynoecious and parthenocarpic. Also available in organic seed.
Harvest
49d
Days to harvest
Sun
Full sun
Zones
2–11
USDA hardiness
Height
8-18 inches
Planting Timeline
Showing dates for Little Leaf Cucumber in USDA Zone 7
All Zone 7 cucumber →Zone Map
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Little Leaf Cucumber · Zones 2–11
Growing Details
Zone-by-Zone Planting Calendar
| Zone | Indoor Start | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 3 | — | June – August | — | — |
| Zone 4 | — | June – July | — | — |
| Zone 5 | — | May – July | — | — |
| Zone 6 | — | May – July | — | — |
| Zone 7 | — | May – June | — | — |
| Zone 8 | — | April – June | — | — |
| Zone 9 | — | March – May | — | — |
| Zone 10 | — | March – April | — | — |
| Zone 1 | June – June | July – August | July – September | September – August |
| Zone 2 | May – June | July – July | July – August | September – September |
| Zone 11 | January – January | February – February | February – March | April – May |
| Zone 12 | January – January | February – February | February – March | April – May |
| Zone 13 | January – January | February – February | February – March | April – May |
Succession Planting
Little Leaf hits harvest in 49 days and keeps producing as long as you pick consistently, so a single planting covers a solid stretch. That said, a second sowing 3 weeks after your first transplant (May into early June) gives you a fresh wave of production when the first planting starts winding down in late summer. Stop new sowings once daytime highs are consistently above 90°F — germination stalls, and the heat stress that pushes cucurbitacin levels up makes fruit quality noticeably worse.
For a fall push, count back 49 days from your first expected frost and transplant from that date. In zone 7, a late July transplant is typically the last viable window before frost cuts the season short.
Complete Growing Guide
Katrina's 49-day maturity makes it ideal for succession planting in spring and early summer, though its heat-stress tolerance sets it apart from many cucumber varieties—plant it when temperatures consistently exceed 70°F for reliable fruit set. This gynoecious, parthenocarpic cultivar requires no pollinator insects, making it excellent for protected culture like hoop houses or greenhouses where it thrives in warm, humid conditions. Monitor closely for spider mites, which proliferate in hot, dry microclimates; mist foliage regularly and ensure adequate air circulation to prevent powdery mildew. The compact 8–18 inch vine habit means you can space plants closer than larger varieties, maximizing yield in limited growing areas. Harvest fruits at 5½–6½ inches when the skin is still tender; leaving fruit on the vine too long encourages bitterness and reduces productivity on subsequent flushes.
Light: Full sun (6 or more hours of direct sunlight a day). Soil: High Organic Matter. Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 0 ft. 8 in. - 1 ft. 6 in.. Spread: 3 ft. 0 in. - 8 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Rapid. Maintenance: Medium. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.
Harvesting
Harvest Little Leaf Cucumber when fruits reach their ideal 5½ to 6½ inches in length, displaying a deep green color with a firm, slightly yielding feel when gently squeezed. At this stage, the thin skin remains tender and the flesh is at peak crispness. Unlike single-harvest varieties, Little Leaf responds best to continuous picking throughout the season, which encourages the plant to produce additional flowers and maintain high yields. Pick every two to three days during peak growing season to prevent fruits from oversizing and becoming seedy. Early morning harvesting, when temperatures are cooler, ensures optimal flavor and texture while reducing stress on the plant's vascular system.
The "vegetable" is botanically a fruit– it is a pepo, a berry with a hard rind. Long and cylindrical, starting out prickly when young and smoothing out to a bumpy surface as it matures. Length and girth can vary based on cultivar and culinary purpose but grow at least 3 in long. Some varieties are bred to be seedless.
Color: Green. Type: Berry. Length: > 3 inches. Width: 1-3 inches.
Garden value: Edible, Showy
Harvest time: Summer
Edibility: Fruits are commonly eaten raw or pickled. Fresh cucumbers last in the fridge for about a week.
Storage & Preservation
Store freshly harvested Little Leaf cucumbers in the refrigerator's crisper drawer at 50–55°F with 95% humidity, ideally in a perforated plastic bag to maintain moisture while allowing air circulation. They'll keep for up to two weeks under these conditions, though flavor and texture peak within the first week.
For preservation, pickling is the natural choice for this variety—their small size and tender skin make them ideal for quick pickles or traditional canning methods. Cold-water canning works well if you prefer minimal processing. Freezing isn't recommended as cucumbers become mushy upon thawing due to their high water content. Fermentation is another excellent option that preserves their crisp texture while developing complex flavor.
Since Little Leaf cucumbers are bred for frequent harvesting, pick them young and tender—this actually extends their storage life compared to larger, more mature specimens.
History & Origin
Documentation on the specific origin of Katrina cucumber is limited in publicly available sources. However, Katrina belongs to the modern greenhouse cucumber breeding lineage developed primarily by European and Israeli seed companies during the late twentieth century, particularly those specializing in gynoecious and parthenocarpic varieties for protected cultivation. The variety likely emerged from breeding programs focused on seedless, thin-skinned types optimized for indoor production systems. Its classification as a "Little Leaf" type connects it to breeding efforts emphasizing compact plant architecture and efficient space utilization in greenhouse environments, though the precise breeder, year, and region of initial development remain undocumented in standard horticultural records.
Origin: Himalaya to Northern Thailand
Advantages
- +Early maturity at 49 days provides quick harvests in growing season
- +Parthenocarpic trait ensures reliable fruit set even during heat stress
- +Excellent uniformity and high yield reduce sorting and waste costs
- +Ideal 5.5-6.5 inch size fits premium market niche between other varieties
- +Seedless, thin-skinned texture delivers superior eating quality and tenderness
Considerations
- -Susceptible to bacterial wilt transmitted by cucumber beetles in field
- -Angular leaf spot disease can cause significant foliage damage and reduced vigor
- -Requires careful pest management to prevent economic damage from multiple beetle species
- -Gynoecious type may need pollinator varieties or hand pollination in some settings
Companion Plants
Basil and French marigolds (Tagetes patula) are the two worth prioritizing near Little Leaf. Basil's volatile oils may interfere with aphid and whitefly host-finding, and its compact habit fits cleanly in the 6–12 inch gaps between hills without competing for root space. French marigolds produce alpha-terthienyl in their roots — a compound with documented suppressive effects on root-knot nematodes, which are a genuine problem for cucumbers showing lumpy roots and mid-season wilt. Nasturtiums planted at the bed edge act as a trap crop for aphids, drawing pressure away from your cucumbers. Radishes as a border have some evidence behind them for deterring cucumber beetles — worth the few inches of space given how directly those beetles transmit bacterial wilt.
Fennel and potatoes need to stay out of the same bed. Fennel is allelopathic and will stunt most vegetable neighbors within 12–18 inches — it doesn't play well with much. Potatoes share soilborne disease pressure with cucumbers and can carry pests that move between the two; there's no upside to the pairing.
Plant Together
Basil
Repels aphids, spider mites, and thrips while potentially improving cucumber flavor
Marigold
Deters cucumber beetles, aphids, and nematodes with natural compounds
Nasturtium
Acts as trap crop for cucumber beetles and squash bugs while repelling aphids
Radish
Repels cucumber beetles and squash vine borers, breaks up soil for cucumber roots
Bean
Fixes nitrogen in soil benefiting heavy-feeding cucumbers
Corn
Provides natural trellis support and creates beneficial microclimate
Dill
Attracts beneficial insects like parasitic wasps that control cucumber pests
Lettuce
Provides ground cover to retain soil moisture and suppress weeds
Keep Apart
Aromatic Herbs
Strong-scented herbs like sage can inhibit cucumber growth and germination
Potato
Competes for nutrients and may increase disease susceptibility
Fennel
Releases allelopathic compounds that inhibit cucumber growth and development
Nutrition Facts
Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #169225)
Pests & Disease Resistance
Resistance
Cucumber Mosaic Virus (Intermediate); Cucumber Vein Yellowing Virus (Intermediate); Powdery Mildew (Intermediate); Scab (High)
Common Pests
Cucumber beetles, squash bugs, spider mites
Diseases
Bacterial wilt, angular leaf spot
Troubleshooting Little Leaf Cucumber
What you'll see, why it happens, and what to do about it.
Plants wilting midday despite adequate watering — lower leaves developing large tan spots between the veins with scorched-looking edges
Likely Causes
- Bacterial wilt (Erwinia tracheiphila) — transmitted by cucumber beetles feeding on stems and leaves
- Root-knot nematodes — cause lumpy, undersized root systems that can't take up water efficiently
What to Do
- 1.Do the stem-cut test: sever a wilted stem near the base, press the cut ends together briefly, then slowly pull apart — sticky threads stretching between the cuts means bacterial wilt, not a watering problem
- 2.If nematodes are suspected (lumpy roots, wilting confined to one patch of the bed), pull the affected plants and solarize that soil for 6–8 weeks before replanting
- 3.Control cucumber beetles with row cover at transplant — remove it once flowers open so pollinators can get in
Water-soaked angular spots on leaves that turn brown and papery, sometimes with a yellow halo, appearing after rainy stretches
Likely Causes
- Angular leaf spot (Pseudomonas syringae pv. lachrymans) — bacterial disease that spreads in wet conditions and splashes up from soil onto lower foliage
What to Do
- 1.Switch from overhead sprinklers to drip or soaker hose — keeping foliage dry cuts transmission significantly
- 2.Remove and bag heavily infected leaves; don't put them in the compost pile
- 3.Rotate cucurbits out of that bed for at least 2 seasons; the pathogen overwinters in crop debris
Fruit tastes bitter, especially near the stem end and in the skin
Likely Causes
- Cucurbitacin buildup triggered by environmental stress — drought, uneven irrigation, high heat, or soil pH below 6.0
- Overmaturity — fruit left on the vine well past the 49-day window
What to Do
- 1.Keep moisture consistent at 1–2 inches per week; the fluctuation between wet and dry is what drives cucurbitacin levels up, per NC State Extension
- 2.Test soil pH and adjust to 6.0–7.0 with lime if needed
- 3.Pick Little Leaf at 3–4 inches for pickling use or 5–6 inches for fresh eating; once they start yellowing, the bitterness is already set
Stippled, bleached-looking leaves with fine webbing on the undersides, worst during hot dry spells in midsummer
Likely Causes
- Two-spotted spider mite (Tetranychus urticae) — colonies build fast when temperatures climb above 85°F and humidity drops
What to Do
- 1.Hit the undersides of leaves with a strong jet of water every 2–3 days; physical disruption is more effective on mites than most people expect
- 2.Apply insecticidal soap or neem oil to leaf undersides in early morning, repeating every 5–7 days for at least 3 applications
- 3.Don't let the plants dry out — water-stressed cucumbers are noticeably more susceptible to mite damage than well-watered ones
Frequently Asked Questions
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Growing Guides from Wind River Greens
Where to Buy Seeds
Sources & References
External authority sources used in compiling this guide.
See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.