Dahlia Bangkok

Plant your dahlias in the springtime in soil that has been deeply worked and enriched, for example, with crushed horn or dehydrated blood. Place your tuber and crumble the soil well to fill in the hole without any air pockets. Your dahlia should be covered with 6 cm (2in) of soil. At the end of planting, pour one litre of water. Water regularly during the first 6 weeks to help with root development. Dahlias are sensitive to cold. They need to be overwintered. In November, the first frosts will blacken the foliage, which is the time to dig them up. Carefully unearth the tubers, removing as much soil as possible. Let the foliage dry, so that the tuber can replenish its reserves. Once the foliage is dry, cut the stems to 10 cm (4in) from the tuber. Spread your bulbs in a box on newspaper. Store in a frost-free, dry, cool, and dark place.