Yes, Kennemerland dahlias can take full sun, as long as they are provided with adequate water and soil nutrients. They need at least 6 hours of sunlight, so plant them preferably facing the south or west.
These dahlias are known for their strong and sturdy stems, making them well-suited for supporting the large, colorful blooms that they produce. However, like most plants, Kennemerland dahlias can be susceptible to heat stress, so it's important to ensure that they receive regular watering and are planted in well-draining soil to avoid waterlogged roots.
Additionally, providing a layer of mulch around the plants can help to retain moisture in the soil and protect the roots from extreme temperature fluctuations.