Name: Organic yellow summer squash 'Crookneck'
Brand: Biologiquement vôtre
SKU: BIOV-SEMENCES
Price: 4.49 CAD
Availability: InStock

Sale Sold out

Organic yellow 'Crookneck' zucchini on a bush plant with green foliage, showing bulbous bases, distinctly curved narrow necks, and lightly bumpy buttery-yellow skin. Large open yellow flowers illustrate summer bloom and the importance of pollinators in forming young fruit ready for frequent harvest. The fruit is shown at a young culinary harvest stage.

Bush-type yellow summer squash Cucurbitaceae

Semences biologiques de courges d’hiver

Biologiquement vôtre

Cucurbita pepo

From seed to harvest

Common nameYellow Crookneck summer squash

FamilyCucurbitaceae

GenusCucurbita

Speciespepo

CultivarCrookneck

TypeBush-type yellow summer squash

Botanical nameCucurbita pepo

Organic yellow summer squash 'Crookneck' (Cucurbita pepo) is an open-pollinated organic summer squash with a bush habit. Its buttery-yellow fruit has a bulbous base, lightly bumpy skin, and a narrow distinctly curved neck. Picked young at approximately 10 to 15 cm, it offers tender cream flesh with a mild, slightly nutty flavour. Enjoy it raw in ribbons, sautéed, grilled, roasted, added to soups, or made into fritters. The unusual shape is easy to spot beneath the foliage, and frequent picking helps the plant continue producing throughout summer in productive home gardens.

Direct sow after the last frost once soil is thoroughly warm, or start plants indoors three to four weeks before transplanting in individual containers. Sow 2–3 cm deep and space plants approximately 90 to 120 cm apart according to vigour. Choose full sun and deep, fertile, compost-rich, well-drained soil. Transplant without breaking the root ball to protect sensitive roots. Separate male and female flowers grow on the same plant; bees carry pollen between them and help regular fruit develop. Remove temporary row covers when flowering begins so pollinators can reach every open blossom.

Water deeply at soil level when the first centimetres begin to dry, then mulch after soil warms to maintain even moisture. Keep foliage as dry as possible and inspect leaf undersides to spot pests or disease early. Harvest generally begins around 50 to 58 days after sowing, depending on conditions. Cut young fruit with a clean knife without pulling on the plant, then check again every two or three days. Chill the harvest promptly and discard any squash that is extremely bitter, mouldy, slimy, deeply damaged, or abnormal-smelling. Regular moisture and timely harvest preserve the mild flavour and tender texture.

Light and life cycle

In the garden

Exposure: Full sun
Life cycle: Warm-season annual

Sowing and germination

Sowing guide

Sowing & germination

Sowing depth

2 to 3 cm (3/4 to 1 1/4 in)

Spacing / density

Space plants approximately 90 to 120 cm (36 to 48 in) apart and leave enough room between rows for access harvesting and good airflow.

Germination temperature

Approximately 21 to 32 °C (70 to 90 °F)

Germination time

Approximately 5 to 10 days

Sowing period

Direct sow after last frost once soil is warm; indoor start possible three to four weeks before transplanting

Propagation

Direct sowing in warm soil or indoor sowing three to four weeks before transplanting

Growing method

Growing 'Crookneck' squash from seed. Direct sow after all frost risk once soil is warm, 2–3 cm deep. Mulch after the soil warms to reduce splash and conserve moisture. 'Crookneck' develops the expected harvest form: buttery-yellow elongated fruit with a bulbous base and distinctly curved narrow neck, ideal at 10–15 cm. Use visible changes in the crop rather than the calendar alone to judge harvest. Label every start and keep roots together when moving the seedling. Keep approximately 90 to 120 cm (36 to 48 in) apart and leave enough room between rows for access harvesting and good airflow around 'Crookneck', especially where neighbouring foliage could shade or trap moisture. Feed moderately and stop adding nitrogen when foliage already grows vigorously. Match the planting to full sun and observe the actual hours of unobstructed light at the site. Allow room for the bushy, compact to spreading, and vigorous, or install support appropriate to the crop. Because its habit is bushy, compact to spreading, and vigorous, the vine needs enough room for routine care and neighbouring plants. Inspect flowers, leaf undersides, and the crown before diagnosing poor fruit set. Cut mature fruit with a clean tool, protect the vine from twisting, and clear diseased residue after harvest. Harvest this cucurbit at its intended size or maturity stage with a clean knife or pruners. Do not pull fruit from the plant; use ripening fruit to confirm crop identity, shade picked produce promptly, and remove badly diseased vines after the last harvest.

Soil and care

Soil & care

Moisture

Evenly moist drained soil during growth; dry curing conditions

Care level

Moderate

Watering

Yellow summer squash 'Crookneck' produces rapidly on a bushy plant, so check moisture often once flowers and young fruit appear. Water yellow summer squash 'Crookneck' slowly at the base, widening the wetted area as it spreads, and let excess drain between irrigations. Keep yellow summer squash 'Crookneck''s leaves dry when practical and do not force the stream against stems, flowers, or fruit near the soil. Once yellow summer squash 'Crookneck''s fruit reaches useful size, continue even watering and avoid a sudden heavy irrigation after drought.

Soil type

Prepare deep, loose, fertile, well-drained soil enriched with mature compost. Moisture-retentive loam that never remains saturated supports steady growth and tender fruit development. Aim for a pH of approximately 5.8 to 6.8. In heavy or cold soil, grow on a broad mound to speed warming and improve drainage. Loosen the entire root zone, mulch only after the ground is warm, and rotate at least three years away from other cucurbits.

Fertilization

Feed 'Crookneck' summer squash to support steady young-fruit production, not simply the largest possible canopy. Begin with fertile soil amended as needed with mature compost. Use additional fertilizer at the label rate and avoid placing concentrated product against the crown or dry roots. As regular picking begins, observe leaf colour and overall growth alongside the harvest. Poor pollination or cold weather will not be corrected by extra fertilizer, so identify the likely cause before adding more.

Seasonal care

Seasonal care for 'Crookneck' squash. Use yellow summer squash 'Crookneck' plant’s stated sowing window as a frost-relative cue, not a universal date: direct sow after last frost once soil is warm; indoor start possible three to four weeks before transplanting. Sow 2 to 3 cm deep at approximately 21 to 32 °C (70 to 90 °F); the working germination range is approximately 5 to 10 days, with moisture held steady rather than saturated. Move seedlings outdoors only after frost risk has passed and the soil is thoroughly warm; protect the root ball because cucurbits dislike disturbance. Build a broad, sunny, well-drained planting area, incorporating mature compost without making a soggy pocket at the crown. Allow the stated spread and direct vines or broad leaves before they cover paths or shade smaller crops. Water deeply at the base, widening the irrigated zone as growth advances and keeping foliage as dry as practical. Where space is limited, give yellow summer squash 'Crookneck' a container large enough for its mature root system and keep every drainage opening clear. Once flowers open, avoid disturbing visiting bees, inspect leaf undersides for pests, and remove only clearly damaged tissue. Use the supplied harvest guidance—approximately 50 to 58 days after sowing—as a planning reference, then judge each fruit by the cultivar's colour, firmness, and intended harvest size. Harvest fruit frequently while tender, before oversized specimens slow later production. Before frost, collect usable fruit and remove vines with mildew or rot rather than composting heavily diseased material beside the bed.

Growing in containers

Container growing

Growing 'Crookneck' squash in containers. Choose a stable container sized for the mature plant, with several unobstructed drainage holes. Keep mulch outside the crown. Place 'Crookneck' before late-season crowding develops, keeping its mature habit in mind: bushy, compact to spreading, and vigorous. Leave flowers accessible to bees. Leave enough access around 'Crookneck' to inspect and cleanly harvest buttery-yellow elongated fruit with a bulbous base and distinctly curved narrow neck, ideal at 10–15 cm. Place it in full sun. At final planting, follow this layout for the crop: approximately 90 to 120 cm (36 to 48 in) apart and leave enough room between rows for access harvesting and good airflow. Mark positions before roots are placed. Water deeply and consistently. This cucurbit needs full sun; nearby walls or taller crops should not compromise it. Guide the vine stems without crushing them and support developing ripening fruit where vertical growth is used. Harvest the planting with a clean tool, remove failing vines, and do not reuse diseased mix for another cucurbit. Support fruit developing above the pot, cut it cleanly at harvest, and discard diseased vines after the crop. Keep the saucer empty so salts and standing water do not accumulate around the root ball. Clean the container before its next crop and discard visibly diseased mix.

Growth and harvest

Size, flowering & harvest

Mature height

Approximately 45 to 60 cm (18 to 24 in)

Width / spread

Approximately 90 to 120 cm (36 to 48 in)

Growth rate

Fast

Growth habit

Bushy compact to spreading and vigorous

Edible parts

Young fruit with tender skin; edible blossoms

Bloom period

Large yellow male and female flowers appear separately on the same plant during summer. Male blooms often open before the first female flowers, which are recognized by the tiny fruit at their base. Bees, including squash bees and bumblebees, move pollen in the morning. Remove row covers when flowers open and avoid insecticides during this period to support regular fruit set.

Fruiting

Pollinated female flowers form buttery-yellow fruit with a bulbous base and narrow curved neck. Skin becomes bumpier and firmer as fruit enlarges. For tender flesh and undeveloped seeds, harvest at approximately 10 to 15 cm, generally 50 to 58 days after sowing. Check every two or three days because removing young fruit encourages the plant to continue producing. Consistent moisture supports even growth.

Days to maturity

Approximately 50 to 58 days after sowing

Harvest

Harvest generally 50 to 58 days after sowing when fruit measures approximately 10 to 15 cm, buttery-yellow skin is still tender, and seeds are undeveloped. Pick every two or three days because squash enlarges quickly and frequent harvesting encourages production. Support fruit with one hand and cut the stem with a clean knife without pulling on the plant. Refrigerate promptly. Discard any extremely bitter mouldy slimy deeply damaged or abnormal-smelling squash.

Garden companions

Garden associations

Companion plants & uses

Companion plants

Low herbs and nectar-rich flowers may grow nearby to attract bees without crowding foliage or shading zucchini flowers. Thyme can border the bed, while taller vegetables are best kept on the north side. Always leave enough space around the crown for airflow, watering, and harvest. Companion planting does not replace crop rotation, weeding, or pest monitoring. Water each crop according to its needs and avoid placing highly competitive plants directly against the squash roots. Keep clear access so young fruit can be found and picked frequently.

Garden use

'Crookneck' squash in the vegetable garden. Direct-sow after frost into warm soil or transplant a young seedling carefully without disturbing its roots. Choose full sun and reserve broad bed space for the bushy Cucurbita pepo plant, which reaches roughly 45–60 cm tall but spreads beyond its central crown. Work mature compost into the soil and create a shallow watering basin away from the stem. Water deeply at ground level, especially during flowering and rapid fruit growth, while avoiding a constantly wet crown. Leave space for bees to reach separate male and female flowers and avoid spraying open blooms. Harvest buttery-yellow fruit young, around the documented 10–15 cm useful stage, before skin and seeds become coarse. Check beneath leaves every day or two because curved fruit can hide and enlarge quickly. Cut the short stem with a clean knife rather than twisting. Monitor squash bugs, cucumber beetles, powdery mildew, and squash vine borer where locally present. Remove badly diseased tissue and rotate cucurbits. A row cover may protect young plants but must be removed at flowering unless pollination is provided. Discard any distinctly bitter fruit without tasting more, and do not eat it.

Recipe and storage

Recipe idea

From garden to table

'Crookneck' squash in the kitchen. Herb-grilled Crookneck — Choose young, firm squash with unbroken skin. Rinse 600 g fruit, trim the ends, and slice lengthwise into pieces about 1 cm thick, following the curved neck carefully. Toss with 20 mL olive oil, black pepper, and a small pinch of salt. Grill over medium-high heat for two to four minutes per side until marked and tender but not collapsing. Transfer to a clean platter. Mix 15 mL lemon juice with one minced garlic clove, chopped parsley, and chopped mint, then spoon it over the hot squash. Add crumbled feta or cooked chickpeas for a more substantial dish. Serve immediately or at room temperature with grains or grilled fish. Do not peel young fruit unless the skin is damaged; the curved shape simply produces pieces of different sizes, so remove thinner slices first. Use only sound squash and discard fruit that is slimy, mouldy, or bitter. Refrigerate leftovers promptly in a covered container and keep the cooked platter separate from raw ingredients.

Wildlife and pets

Wildlife & precautions

Supporting wildlife

Large yellow pollen- and nectar-rich flowers attract bees including squash bees and bumblebees. Their morning activity is essential for good pollination of female flowers and regular fruit formation. Avoid insecticides during bloom and remove row covers when the first flowers open. Nearby low flowers can provide additional forage without crowding the squash foliage.

Frequently asked questions

When and how should Crookneck squash be sown?

Direct sow after all frost risk once soil is thoroughly warm, approximately 2–3 cm deep. To gain time, start one plant per individual container three to four weeks before setting out, then harden it gradually. Transplant without disturbing roots into full sun and fertile well-drained soil. Leave approximately 90–120 cm between plants so foliage dries quickly and pollinators can move freely. Maintain steady moisture at soil level and remove protection at flowering so bees can reach the blossoms. Mulch after soil warms to reduce evaporation and soil splashing, then inspect seedlings regularly for early pest damage. Warm roots support steady early growth.

When should Crookneck fruit be harvested?

Harvest Crookneck squash while the buttery-yellow fruit is about 10 to 15 cm long, the size listed as ideal for this cultivar. Check the vigorous plant frequently once production starts, because summer squash can enlarge quickly. Choose fruit with sound skin and a clearly curved narrow neck above the bulbous base. Use a clean knife or pruners and leave a short stem; pulling can tear the bushy crown. The first harvest is expected roughly 50 to 58 days after sowing, but warmth, pollination, and moisture affect timing. Do not wait for every fruit to reach the same size. Remove oversized or damaged squash so the plant remains easy to inspect, and harvest young fruit regularly for the intended summer-squash texture. Discard any fruit with rot, leakage, or uncertain condition.

Why do small fruit yellow and drop?

The most common cause is incomplete pollination: the female flower begins forming a fruit, but it then stops enlarging. Ensure bee access as soon as flowers open, avoid insecticides during bloom, and grow nectar-rich flowers nearby. Extreme heat, irregular watering, or a severely stressed plant may also contribute. Remove fruit that softens so it does not rot near the crown. When bees are scarce, morning hand pollination with a fresh male flower may improve fruit set. Remove softening fruit before it rots near the crown, and keep observing the next female flowers for improved development. Healthy new growth often resumes quickly.

Can Crookneck squash grow in a container?

Crookneck squash can grow in a container only if it is very large. The current record does not provide a verified volume, so select a broad, deep, stable vessel that can accommodate one vigorous plant spreading approximately 90 to 120 cm. Ensure generous drainage and position the pot where pollinators can reach the flowers after frost danger has passed. Water the root zone thoroughly and monitor it often, because the large leaves use moisture quickly. Keep foliage and fruit off busy walkways. The first harvest is listed around 50 to 58 days after sowing. Cut buttery-yellow fruit at the ideal 10- to 15-cm size and inspect the plant frequently. If adequate root volume and open space are unavailable, garden or raised-bed culture is the more dependable choice.

Can Crookneck seed be saved?

Crookneck seed can be saved, but Cucurbita pepo crosses readily with other compatible C. pepo squash flowering nearby. A fruit that looks like Crookneck this year can therefore contain crossed seed. To preserve the cultivar, identify male and female flowers before they open, isolate them, hand-pollinate a female flower with pollen from a true Crookneck plant, then close and label that flower. Leave the selected fruit on the plant far beyond the usual 10- to 15-cm eating stage so the seed matures fully. Harvest the seed fruit only when its rind and seeds are mature, then clean and dry seed thoroughly. If pollination was open or uncertain, label the saved seed as experimental and expect variable squash rather than promising true Crookneck offspring.