Preparation:
At the end of April or beginning of May, when night frosts are no longer expected, the time has finally come: the dahlia tubers can be planted. Depending on the species and variety, these Mexican beauties will then delight us with their beautiful blooms from July until the first frost.
First, remove the tubers from their winter quarters and sort out any dried-out or rotten tubers. Very dry tubers are best placed in a bucket of rainwater for 1-2 hours before planting. This also stimulates new growth. Larger perennial tubers should be divided with a sharp knife or pruning shears before planting. They grow quickly and then become too large or heavy to remove and store. You can also hold the tuber bundle in both hands and carefully break it apart. Each divided tuber must have eyes (buds).
Location:
Any normal, nutrient-rich, and well-drained soil in a sunny location is suitable for planting. The sunnier the Mexican dahlias are, the better. Planting them under trees is therefore not recommended. They will also thrive in partial shade, but not quite as luxuriantly. Since dahlias don't tolerate waterlogging, clay soils should be enriched with a little sand. This allows for better drainage.
