Is your fennel failing again? Here’s how to tend the tricky crop in your veg patch

This handsome plant will enhance your curries, soups and salads – as long as you can get it to thriveBulb fennel – AKA Florence fennel – is notoriously challenging to grow. Its aniseed taste isn’t for everyone, but it’s a crop I’m chuffed to see thrive under my care, given how many times I’ve failed with it in the past. It’s a handsome plant that’s edible from top to toe, and if the plump bulbs you’d hope for don’t materialise, you can leave them to develop flowers as an offering to the hoverflies.Bulb fennel is best sown in situ, as it’s one of the many umbellifers that develops a taproot as it grows, so has little tolerance for having its root system disturbed. That said, its seeds can be sown into trays, but you’ll need to use one with large modules, making sure to sow only one seed per module. If you transplant them as soon as they can be handled (ideally having developed a few strong leaves) and are extra gentle when putting your seedlings into the ground, with any luck, they’ll take to their new home without issue. While bulb fennel can be sown earlier (from April onwards), those sown now are less prone to bolting (flowering prematurely, stymying bulb formation). Continue reading...

May 16, 2025 - 11:48
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Is your fennel failing again? Here’s how to tend the tricky crop in your veg patch

This handsome plant will enhance your curries, soups and salads – as long as you can get it to thrive

Bulb fennel – AKA Florence fennel – is notoriously challenging to grow. Its aniseed taste isn’t for everyone, but it’s a crop I’m chuffed to see thrive under my care, given how many times I’ve failed with it in the past. It’s a handsome plant that’s edible from top to toe, and if the plump bulbs you’d hope for don’t materialise, you can leave them to develop flowers as an offering to the hoverflies.

Bulb fennel is best sown in situ, as it’s one of the many umbellifers that develops a taproot as it grows, so has little tolerance for having its root system disturbed. That said, its seeds can be sown into trays, but you’ll need to use one with large modules, making sure to sow only one seed per module. If you transplant them as soon as they can be handled (ideally having developed a few strong leaves) and are extra gentle when putting your seedlings into the ground, with any luck, they’ll take to their new home without issue. While bulb fennel can be sown earlier (from April onwards), those sown now are less prone to bolting (flowering prematurely, stymying bulb formation). Continue reading...