Cucumber Seeds,
Dutch Yellow or Gele Tros

Plant Dutch Yellow cucumber seeds outdoors once the risk of frost has passed and soil temperatures are consistently above 70°F. In shorter-season climates, start seeds indoors 3–4 weeks before your last frost date. Raised beds or container gardens with good sun exposure are ideal for this heat-loving, heirloom variety. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

Prepare well-drained, compost-enriched soil in a sunny location. Sow seeds 1/2 inch deep and space plants 12 to 18 inches apart. Use rows or mounds to promote drainage and early warmth. Trellising is recommended to support vining growth and to facilitate easier harvesting and cleaner, straighter fruits.

Water regularly, keeping the soil evenly moist but not saturated. Apply mulch to conserve moisture and suppress weeds. Fertilize every few weeks with an organic balanced formula. Trellised plants benefit from better air circulation and reduced disease risk. Harvest fruits when they turn a rich yellow color and are 4–6 inches long.

• Select disease-free plants for seed saving.
• Allow fruits to fully ripen on the vine (they will turn yellow or orange).
• Scoop out seeds and pulp into a jar or bowl with water.
• Ferment at room temperature for 2–3 days, stirring daily.
• Rinse seeds thoroughly and dry on a screen or paper towel for 1–2 weeks.
• Store in a cool, dry place in a labeled and dated airtight container.