Gardeners struggling to get their dahlias to sprout should check three vital signs, according to a gardening expert. Ish, a TikTok creator, shared tips on what to look for and how to fix common issues.
Firstly, check the soil temperature. Dahlias need warmth to sprout; cold soil can cause dormancy or slow growth. Secondly, ensure consistent moisture—not too soggy, but enough to rehydrate the tuber. Finally, gently squeeze the tuber to feel if it is firm or squishy. A firm tuber is healthy, while a squishy one may indicate rot from overwatering.
If no sprouts appear after two to four weeks, don't panic. Ish advises brushing away topsoil to check for small nubs, which are signs of life. He says, “It’s just a patience game.” Dahlias can still be planted throughout May and should bloom from July to October.
Once dahlias reach 20cm tall, Gardeners' World recommends pinching out the main growing tip to encourage side shoots. Feed plants fortnightly with high-potash feed, such as tomato feed, and water weekly. Deadhead spent flowers by removing the whole stem to prolong blooming.
