Sweet Potato
Grow your own healthy and nutritious sweet potatoes
Learn how to successfully grow sweet potatoes in the Netherlands, from pre-treatment to harvest. Discover the best ways to prepare your plants, create ideal growing conditions, and how to achieve a healthy harvest. Gain insight into the right soil type, the perfect planting distance, and the most effective irrigation methods.
Preparation and cultivation
Allow to sprout while warm indoors
Start indoors in January/February in a warm place (18+°C). Place sweet potatoes in water or directly in potting soil. Make sure you choose a bright spot and keep the potatoes moist, but not too wet. This helps develop strong, healthy shoots that are ready for transplanting as soon as it warms up outside.
Use small crop residues
Save small sweet potatoes from the previous harvest and reuse them as planting material. Make sure they are healthy and free from disease. This saves costs and ensures that your plant material is already adapted to your local growing conditions.
Stimulate root formation
When the shoots grow roots, cut them off and place them in their own pot with water. Be careful not to damage the roots when cutting. Place the pots in a bright spot and change the water regularly to prevent mold formation.
Planting and care
Plant out in March
From March, the rooted cuttings can be taken to the kitchen garden, preferably in a sunny spot. Provide well-drained soil and plant the cuttings 12-18 inches apart to provide ample growing space. Keep the soil moist to help the young plants become established.
Few weeds
Sweet potatoes grow quickly and suppress weeds, making maintenance easy. Their lush foliage ensures that little light reaches the soil, which limits weed growth. This means you spend less time weeding and can focus on other garden tasks.
Water regularly
Watering is essential for healthy growth, especially during dry periods. Sweet potatoes need regular moisture to grow properly. Be sure to water the plants deeply so that the water reaches the roots, especially during hot and dry periods.
Harvest and store
Harvest from September
The harvest period runs from September to the end of October, depending on the weather. Monitor weather conditions and start harvesting as soon as the leaves start to yellow. This is usually a sign that the tubers are ready to be harvested.
Harvest carefully
Dig up the tubers carefully to avoid damage. Use a spading fork or other suitable garden tool to loosen the tubers. Be careful not to puncture or bruise the tubers as this can reduce their shelf life.
Store cool and dry
First let the tubers dry for a few days and store them in a cool, dark place. This helps to harden the skin and reduces the risk of rot. Then store the tubers in a well-ventilated area at a temperature of about 12-15°C.
Dutch practice: Sweet Potato
Monthly planning for Dutch conditions
Plan Sweet Potato based on Dutch seasons and not on general international schedules. In most regions, soil development starts from February or March, with planting out after the last chance of night frost around mid-May. In coastal areas, the soil often warms up later due to wind, while sandy soils warm up faster than clay. Work with a fixed weekly check per month: soil temperature, precipitation, disease pressure and growth rate. This way you steer based on the real Dutch weather instead of just a calendar date.
Soil choice in the Netherlands: clay, sand and peat
Soil management in the Netherlands is decisive for Sweet Potato. On clay, structural improvement with compost and mulch helps to prevent silting. In sandy soils, moisture retention is the priority with organic matter and gentle, deeper watering. On peat soil you pay extra attention to nutritional deficiencies and a stable pH. Choose one approach per bed and evaluate it after each rainy period, because Dutch showers can cause a lot of leaching or waterlogging in a short time. By making soil choices explicit, the chance of success visibly increases.
Limiting weather risks in practice
In the Netherlands, prolonged rain, sudden temperature changes and snail pressure are the most common risks. Therefore, work preventively: sufficient plant distance for air circulation, water at the base instead of over the leaves, and a quick inspection round after wet days. When in doubt, stick to a simple decision rule: first drainage and air, then nutrition, and only then action against pests. This prevents overcorrection and makes Sweet Potato more consistent throughout the season, even in changeable years.
Sow Trays
Perfect for the first steps of your sweet potato cultivation. This provides a solid foundation for beginners and will help you master the key techniques and tips so you can confidently grow your own sweet potatoes.
View productSmall Plastic Containers
Ideal for rooting your cuttings. Make sure you create the right conditions, such as sufficient light and regularly changed water, so that your cuttings develop roots quickly and healthily.
View productCooking with Sweet Potatoes
Inspiring cookbook with delicious recipes. Discover a variety of dishes you can prepare with your home-grown sweet potatoes, from simple snacks to elaborate meals.
View product