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Bunching Onion

Allium fistulosum
Also known as: Welsh Onion, Scallion, Spring Onion, Japanese Bunching Onion, Stone Leek, Green Onion

Bunching Onion is a vegetable in the Amaryllidaceae family. It grows best in full sun with medium moisture, and is listed for USDA zones 6-9. Plants reach harvest about 40–140 days after planting and sit about 4 inches apart.

Varieties

23 from True Leaf Market, Seeds Now & High Mowing · sorted by days to maturity
  • Ishikura Winter Long40–60 days

    Heirloom; Container; Vegetable

    40-60 Days to maturity. Allium fistulosum. Ishikura Winter Long Japanese Bunching Onion Seeds. Non-GMO, annual, perennial, open-pollinated, heirloom, cold hardy, bunching onions. Suitable for growing in greenhouses, garden plots, raised beds, and containers. A vigorous and hardy winter variety, this bunching onion has hollow stalks and an excellent, mild flavor. It is frost tolerant, pest resistant, and bred to grow well in most areas. It is also delicious for microgreens. Bunching onions are perennials but are generally treated as annuals or biennials.~ 8,375 seeds / oz.

    View on True Leaf Market
  • Red Beard40–50 days

    Heirloom; Container; Vegetable

    40-50 Days to maturity. Allium fistulosum. Red Beard Japanese Bunching Onion Seeds. Non-GMO, annual, perennial, open-pollinated, heirloom, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. This popular, specialty bunching onion is easy to grow and an excellent choice for fresh market growers and home gardeners. It has a red stalk, a mild flavor, and tender leaves. Bunching onions are technically perennial but are typically grown as annuals or biennials. ~ 13,000 seeds / oz.

    View on True Leaf Market
  • White Lisbon40–60 days

    Heirloom; Container; Vegetable; Annual; cold hardy; heat tolerant; drought tolerant; open-pollinated

    40-60 Days to maturity. Allium fistulosum. White Lisbon Onion Seeds. Non-GMO, annual, perennial (see zone info), open-pollinated, heirloom, cold hardy, heat tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to disorders. This is the earliest bunching onion. Use this variety for canning, pickling, fresh eating, and stir-frying. ~ 8400 seeds/oz.

    View on True Leaf Market
  • Crimson Forest51–69 days

    Can tolerate hot temperatures; Direct sow; Grows well in full sun; Grows well with containers; Grows well with raised beds; Matures in <90 days; Start indoors; Super easy to grow

    Crimson Forest is a rare heirloom - Dark red, burgundy, and purple colors - Excellent for many culinary creations - Grows well in containers and small spaces - Easy to grow Days to Maturity | 60 days Onion Seeds | Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows. Click here for complete Onion grow guide

    Growing notes: Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows.

    View on Seeds Now
  • Ishikura Improved51–69 days

    Heirloom; Non-GMO; Vegetable; Annual

    60 Days to maturity. Allium fistulosum Ishikura Improved Bunching Onion Seeds. Annual, Non-GMO, Heirloom. This is a traditional medium early Japanese type bunching onion. At maturity, the stalk has white shanks up to 20-24" long with 6 or 7 deep green, thick leaves. These green onions do not form bulbs and do not multiply by division. The Ishikura Improved is tolerant to warm and cool temperatures and is suitable for winter harvesting in some areas. Approximately 7,000 seeds / oz.

    View on True Leaf Market
  • Warrior AAS51–69 days

    AAS Winner; Container; Vegetable

    Resistance: HR: Pink Root Rot

    60 Days to maturity. Allium fistulosum. Warrior Bunching Onion Seeds. Non-GMO, perennial, open-pollinated, AAS Regional winner (Southeast, Mountain/Southwest), bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to Pink Root Rot. This 2016 AAS winner grows quickly and matures early, producing a very uniform crop of slender, crisp onion stalks. This variety was bred by Seeds by Design and is comparable to the Tokyo Long White or Ishikura Improved Bunching onions. ~6,400 seeds/oz.

    View on True Leaf Market
  • Evergreen Hardy55–75 days

    Welsh-type; Very cold hardy

    Reliably overwinters in Vermont, where temperatures can reach -30°F. Sow all season long or overwinter. Divide clumps in second year to produce a new crop. Can be grown like an annual or allowed to develop into a dense patch. Allium fistulosum. Unavailable in 2024.

    Growing notes: Days to maturity are from direct seeding, subtract 1-2 weeks if transplanting. Onions are cool-season biennials dependent on day length for bulb formation. Short day onions start forming bulbs with 11-12 hrs of daylight, long day onions need 14-16 hrs, intermediate day onions fall in between. Start transplants indoors 8-12 weeks before last frost. Optimal soil temp for germination is 75-85°F. When seedlings reach 5”, trim to increase girth. Onions compete poorly with weeds and steady water is important. Harvest sweet and red onions after bulb development, and storage onions after tops dry up and flop over. Cure for 3-5 days in the field if weather is dry or indoors for 2 weeks at 75-80°F and 80% relative humidity. Store at 33-35°F at 65-70% relative humidity.

    View on High Mowing
  • Lisbon, White55–75 days

    Can tolerate hot temperatures; Direct sow; Grows well in full sun; Grows well with containers; Grows well with raised beds; Matures in <90 days; Start indoors; Super easy to grow

    White Lisbon is a very popular type of bunching onion - Dark green leaves with long white stalks - Stores well after harvest - Excellent for many culinary creations - A hot and cold resistant variety - This variety is usually planted in the spring but it's also a great fall/winter crop as well - Grows well in containers and small spaces - Easy to grow Days to Maturity | 65 days Onion Seeds | Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows. Click here for complete Onion grow guide

    Growing notes: Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows.

    View on Seeds Now
  • Bunching White Ishikura (Organic) (Clearance)60–66 days

    Heirloom; Organic; Non-GMO; Vegetable

    57% Germination - Non-refundable clearance seeds. 60-66 Days to maturity. Organic White Ishikura Bunching Onion Seeds. White Ishikura has received the RHS Award of Garden Merit. It is a favorite for winter harvesting. This Japanese-type bunching onion develops long white-ended stalks lacking bulbs. While it is a perennial, it is most often grown as an annual or biennial. These clearance Organic White Ishikura Bunching Onion Seeds are 13% below germination standards. Approx 8,375 seeds/oz.

    View on True Leaf Market
  • Flagpole (Organic)60–80 days

    Heirloom; Organic; Vegetable; Perennial

    60-80 Days to maturity. Allium fistulosum. Organic Flagpole Scallion Onion Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom, cold tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, and raised beds. One the largest kinds of green onions available. It is also well known for its cold tolerance. Highly prized by Asian chefs. Develops attractive dark blue-green leaves. About 150 seeds per 500mg packet.

    View on True Leaf Market
  • Heshiko60–80 days

    Heirloom; Non-GMO; Container; Vegetable; Perennial

    60-80 Days to maturity. Allium fistulosum. Heshiko Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, cold tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. This Japanese bunching onion or scallion produces tender leaves with white 12-14 inch stalks. The onion has delicious, white, pungent flesh. This variety will over-winter. Approximately 12,700 seeds per ounce.

    View on True Leaf Market
  • Heshiko (Treated)60–80 days

    Heirloom; Non-GMO; Container; Vegetable; Perennial

    60-80 Days to maturity. Allium fistulosum. Heshiko Treated Onion Seeds (Thiram fungicide). Non-GMO, perennial, open-pollinated, heirloom, cold tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. This Japanese bunching onion or scallion produces tender leaves with white 12-14 inch stalks. The onion has delicious, white, pungent flesh. This variety will over-winter. Approximately 12,700 seeds per ounce. This seed is treated with a fungicide designed to prevent or reduce seed rot in the soil. It does not affect the plant or the produce from the plant. This seed is intended for planting only. Do not eat this seed or use it for oil or animal feed. Keep this seed out of the reach of children. Wash hands after handling.

    View on True Leaf Market
  • Parade60–80 days

    Uniform size; Upright habit

    Resistance: IR: Basal Rot; Pink Root

    Knocked our socks off in our bunching onion trials. We’ve never seen such a uniform, upright bunching onion, not a single leaf leaning over. Gorgeous rows of dark green and vigorous stalks with no bulbing at all, making cleaning easy and quick. Parade has a nice, mild onion flavor. From our partners at Bejo Seeds

    Growing notes: Days to maturity are from direct seeding, subtract 1-2 weeks if transplanting. Onions are cool-season biennials dependent on day length for bulb formation. Short day onions start forming bulbs with 11-12 hrs of daylight, long day onions need 14-16 hrs, intermediate day onions fall in between. Start transplants indoors 8-12 weeks before last frost. Optimal soil temp for germination is 75-85°F. When seedlings reach 5”, trim to increase girth. Onions compete poorly with weeds and steady water is important. Harvest sweet and red onions after bulb development, and storage onions after tops dry up and flop over. Cure for 3-5 days in the field if weather is dry or indoors for 2 weeks at 75-80°F and 80% relative humidity. Store at 33-35°F at 65-70% relative humidity.

    View on High Mowing
  • Tokyo Long White60–90 days

    Heirloom / Open Pollinated; Vegetable; Container; Perennial

    Resistance: HR: Botrytis Leaf Blight; Pink Root Rot

    60-90 Days to maturity. Allium fistulosum. Tokyo Long White Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, cold tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to Botrytis Leaf Blight, Pink Root Rot. Although related to the traditional garden onion bulb, Tokyo Long bunching onions grow much faster, easier, and even taste a whole lot better. ~7,000 seeds per ounce.

    View on True Leaf Market
  • Tokyo Long White (Organic)60–90 days

    Heirloom; Organic; Container; Vegetable; Perennial

    Resistance: HR: Botrytis Leaf Blight; Pink Root Rot

    60-90 Days to maturity. Allium fistulosum. Organic Tokyo Long White Onion Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom, cold tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to Botrytis Leaf Blight, Pink Root Rot. Although related to the traditional garden onion bulb, Tokyo Long bunching onions grow much faster, easier, and even taste a whole lot better. ~7,000 seeds per ounce.

    View on True Leaf Market
  • Tokyo Long White (Organic) (Clearance)60–90 days

    Heirloom; Organic; Vegetable; Annual

    65% Germination - Non-refundable clearance seeds. 60-90 Days to maturity. Organic Tokyo Long White Onion Seeds. A classic Japanese bunching onion that makes extra-long, tender white stalks with bright green tops and a clean, mild bite. Fast, generous, and easy to grow for crisp scallions all season—perfect for salads, stir-fries, and garnishes. These clearance Organic Tokyo Long White Onion seeds are 5% below germination standards. Approx 7,000 seeds/oz.

    View on True Leaf Market
  • White Ishikura (Organic)60–66 days

    Heirloom; Organic; Non-GMO; Container; Vegetable; Annual; Perennial

    60-66 Days to maturity. Allium fistulosum. Organic Bunching White Ishikura Onion Seeds. Non-GMO, annual, perennial, organic, open-pollinated, heirloom, cold hardy, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. The White Ishikura has received the RHS Award of Garden Merit. It is a favorite for winter harvesting. This Japanese-type bunching onion develops long white-ended stalks lacking bulbs. While it is a perennial, it is most often grown as an annual or biennial. These bunching onions are also known as Welsh onions, meaning 'foreign' when introduced to Europe in the Middle Ages. ~ 8,375 seeds/oz.

    View on True Leaf Market
  • Evergreen White Nebuka65–120 days

    Heirloom; Container; Vegetable; Perennial

    Resistance: HR: Neck Rot; Pink Root Rot

    65-120 Days to maturity. Allium fistulosum. Evergreen White Nebuka Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, cold tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to Neck Rot, Pink Root Rot. Bunching onions are often known as Welsh Onions and Long Green Onions. These are cold-hardy and considered evergreen in many zones. This variety is not only grown for eating but also serves as a beautiful border plant as well. Bunching onions are known for their slender silvery-white stalks and their mild flavor. ~ 7,000 seeds/oz.

    View on True Leaf Market
  • Evergreen White Nebuka (Organic)65–120 days

    Heirloom / Open Pollinated; Vegetable; Container; Perennial

    Resistance: HR: Neck Rot; Pink Root Rot

    65-120 Days to maturity. Allium fistulosum. Organic Evergreen White Nebuka Onion Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom, cold tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Resistant to Neck Rot, Pink Root Rot. Bunching onions are often known as Welsh Onions and Long Green Onions. These are cold-hardy and considered evergreen in many zones. This variety is not only grown for eating but also serves as a beautiful border plant as well. Bunching onions are known for their slender silvery-white stalks and their mild flavor. ~ 7,000 seeds/oz.

    View on True Leaf Market
  • Kyoto Kujo Negi68–92 days

    Heirloom / Open Pollinated; Vegetable; Container

    80 Days to maturity. Allium fistulosum. Kyoto Kujo Negi Japanese Bunching Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. This non-bulbing Japanese green onion is one of the Kyo yasai, or traditional vegetables in the Kyoto region. Bunching onions are perennials but are generally grown as annuals or biennials. The tender leaf tapers to a height of 24 inches, modulating in color from white to light green and dark green. It has a nice mild flavor. ~ 12,625 seeds / oz.

    View on True Leaf Market
  • Tokyo Long White, Scallion75–80 days

    Can tolerate hot temperatures; Direct sow; Grows well in full sun; Grows well with containers; Grows well with raised beds; Start indoors; Super easy to grow

    The Tokyo Long White Bunching Onion – or Scallion – is an extremely tasty Japanese variety that grows well throughout the United States - One of our best sellers - Grows well in containers and small spaces - Easy to grow Days to Maturity | 75-80 days Onion Seeds | Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows. Click here for complete Onion grow guide

    Growing notes: Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows.

    View on Seeds Now
  • Evergreen102–138 days

    Can tolerate hot temperatures; Direct sow; Grows well in full sun; Grows well with containers; Grows well with raised beds; Start indoors; Super easy to grow

    Allium cepa. This plant produces very long and slender bunching onions - Grown exclusively as green bunching onions. Onions have white shanks and white skin making it a very attractive scallion for gourmet dishes - A hardy plant that can withstand cold weather - If you like scallions, you'll love this variety - Extremely popular - A must have for any onion-lover Days to Maturity | 120 days Onion Seeds | Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows. Click here for complete Onion grow guide

    Growing notes: Onions are easy to grow, have a fairly short growing period and take up little space in the garden. Plant onions 1/4 inch deep and 3 to 4 inches apart in double rows, leaving 6 to 10 inches between rows.

    View on Seeds Now
  • Shimonita Negi120–140 days

    Heirloom; Non-GMO; Container; Vegetable; Perennial

    120-140 Days to maturity. Allium fistulosum. Variety name Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Shimonita Town is where these famous Japanese bunching onions originate. It is considered the 'King of the Negi' for its fat white root ends and delectable sweet flavor when cooked. Utilize any part of this plant for its oniony flavor. A single stalk variety, the bulb begins to flatten at a 13-hour day length. Bunching onions are technically perennial but are typically grown as annuals or biennials.~ 13,000 seeds / oz.

    View on True Leaf Market
Family
Amaryllidaceae
Category
Vegetable
Form
Stalk
Lifecycle
annual
Zone
6-9
Height
1–2 ft
Spread
0.25–0.6666666666666666 ft
Sun
Full sun

Plant spacing

9 plants per square footSquare-foot planting diagram: a 1-foot square divided into a 3-by-3 grid holding 9 bunching onion plants spaced 4 inches apart.
9 plants per square foot

In a square-foot bed, space bunching onion about 4 in apart — that fits 9 plants in each 1-foot square (3×3). Wider rows or containers space the same.

Water
Medium

Plan your bunching onion planting

Add bunching onion to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.

Start your free plan →

At a glance

Days to harvest
40–140 days
From transplant or sow to first harvest
Harvest style
Keep picking
Crops over several weeks
After harvest
Use right away
Quality drops fast past peak
Frost tolerance
Semi-hardy · to ~24°F
Lowest temperature the foliage usually survives
Germination
~70%
Typical minimum germination rate

Storing & preserving

Best used right away — quality drops fast. Cure 2–3 weeks, then store cool, dark, and dry — keeps for months.

  • Cure & store: Dry the necks/skins fully, then store in a cool pantry.
  • Freeze: Freeze chopped for cooking (texture softens).

General home-preservation guidance — for tested processing times and safety, follow the National Center for Home Food Preservation.

Growing timeline

When to plant and harvest bunching onionPlanting timeline for bunching onion, relative to last frost: start indoors from 16 weeks before last frost to 4 weeks before last frost; grow from 4 weeks before last frost to 2 weeks after last frost; harvest from 2 weeks after last frost to 16 weeks after last frost.Start indoorsGrowHarvestLast frostTransplant
Start bunching onion indoors ~12 weeks before transplanting 4 weeks before last frost; first harvest 2 weeks after last frost.
Seed to transplant
42-84 days
Outdoor planting
-28 to -7 days vs frost
Propagation
Seed
Schedule anchor
Last Frost

Companion planting — with cited sources

From US/Canada cooperative-extension publications and peer-reviewed studies. Evidence-tier dots show how strongly each recommendation is backed: ●●● peer-reviewed mechanism · ●● extension consensus · traditional knowledge with a plausible mechanism.

Pairs well with (2)

  • CarrotEvidence tier B: Extension consensus across multiple US/Canada land-grant institutionspest-deter

    Bunching onion (scallion) emits the same masking sulfur volatiles as bulb onion and is the most commonly recommended allium for season-long carrot interplant in extension guides — it does not compete with the carrot for bed space and matures on a similar timeline.

    Source: S1, S4, University of Guelph / OMAFRA

  • Common CabbageEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter

    Scallions interplanted at row edges are cited by extension home-garden references as reducing cabbage aphid and (more modestly) cabbage maggot pressure on brassicas. Evidence is observational; results vary by site.

    Source: University of Maryland Extension, S13

Sources cited

S1
Cornell University Cooperative Extension — vegetable production guides
S13
University of New Hampshire Extension
S23
University of Guelph / OMAFRA (Ontario)
S4
Oregon State University Extension Service
S9
University of Maryland Extension — Home & Garden Info Center

Care & troubleshooting— extension-sourced, with citations

When to feed, prune & water

Feed alliums in spring

Feeding
  • Routine careFeed nitrogen every 3 weeks during active growth· every 3 wks · ~9 wksmoderate evidence — extension confidence

    Alliums build the bulb from spring leaf growth. Feed a nitrogen source every ~3 weeks through spring, then stop once bulbs start to swell so they cure well.

    Source: UMN Extension

Floating row cover timing

Protection

Unusual this time of year.

Something looks wrong?

Describe what you see on your bunching onionand we'll rank the likely causes — most likely first, least-invasive fix first.

Bacterial soft rot

Diseasesevere

Symptoms: mushy water-soaked decay of fleshy tissue; slimy soft rot of heads, bulbs, roots, or fruit; foul odor from rotting tissue; rapid collapse after wounding or in warm wet conditions; rot spreading in storage

  • CulturalRemove rotting plants and produce (manage, not cure)strong evidence — extension confidence

    Soft rot can't be cured once tissue breaks down; promptly remove and discard affected plants and produce so the bacteria don't spread to neighbors or other stored vegetables.

    Source: Cornell NYS IPM

  • CulturalAvoid wounds and excess moisturestrong evidence — extension confidence

    Harvest in dry conditions, handle gently to avoid bruising, control insects that create entry wounds, and improve drainage; cure and store bulbs and roots cool and dry.

    Source: Cornell NYS IPM

  • CulturalDon't overwater and rotatemoderate evidence — extension confidence

    Avoid waterlogged soil and overhead watering that splashes bacteria, and rotate away from previously affected fleshy crops to lower disease pressure.

    Source: Cornell NYS IPM

Onion & garlic white rot

Diseasesevere

Symptoms: yellowing and dieback of leaves; plants pull up easily; fluffy white mold at the base and on bulbs; tiny black poppy-seed sclerotia in the rot; spreads in patches in cool moist soil

Leafhoppers & aster yellows

Diseasemoderate

Symptoms: small wedge-shaped insects hop from leaves; stippled or yellowed foliage; with aster yellows: yellow stunted growth, witches-broom of thin shoots, deformed bitter carrots

Leek moth and thrips on leeks

Pestmoderate

Symptoms: whitish windowpane streaks or mottling on leaves (thrips); pale winding mines and holes in leaves; caterpillars tunneling in leaves and stems; distorted rotting foliage from secondary infection

  • CulturalCover and clean upmoderate evidence — extension confidence

    Cover plants with insect netting or row cover at planting to keep egg-laying leek moths and thrips off, and remove and destroy badly infested leaves and crop debris. Rotate alliums to a new spot each year to break the pest cycle.

    Source: RHS: Leek moth; RHS: Thrips on Garden Plants

  • OrganicWash off thrips or spray· every 1 wkmoderate evidence — extension confidence

    For thrips, hose plants down to dislodge them, or apply a labeled insecticidal soap or neem product per the label. For leek moth caterpillars, a labeled spinosad or Bacillus thuringiensis product applied per the label when young larvae are active can help.

    Always follow the product label — it is the law.

    Source: RHS: Leek moth; RHS: Thrips on Garden Plants

Leek rust

Diseasemoderate

Symptoms: bright orange raised pustules on leaves; yellowing around the spots; heavily infected leaves drying and dying back; reduced size of usable shank

  • CulturalImprove airflow and remove infected leavesmoderate evidence — extension confidence

    Leek rust is a fungal disease favored by damp, crowded conditions and lush growth; space plants well, avoid over-feeding with nitrogen, and remove badly affected leaves. Mild cases usually still produce a usable crop, and rotating alliums each year helps prevent buildup.

    Source: RHS: Leek rust; UMN Extension: Growing leeks

Onion thrips

Pestmoderate

Symptoms: silvery streaks and flecks on leaves; tiny slivers that scatter when disturbed; worst in hot dry weather

  • CulturalOverhead-water and remove debris· every 3 days · ~3 wksmoderate evidence — extension confidence

    Thrips dislike moisture; overhead irrigation and weed/debris cleanup reduce them. Reflective mulch deters them on young plants.

    Source: UMN Extension

  • OrganicInsecticidal soap/spinosad - label use only· every 1 wk · ~3 wksmoderate evidence — extension confidence

    For heavy pressure a labeled soap or spinosad on a weekly schedule helps. Follow the label.

    Always follow the product label — it is the law.

    Source: UMN Extension

Cabbage & onion root maggots

Pestmoderate

Unusual this time of year.

Symptoms: young brassica or onion transplants wilt and stunt; bluish off-color leaves; white legless maggots in roots; rotting tunneled roots; plants pull up easily