How to prune parsnip 'hollow crown'

Remove damaged foliage anytime; cut bolting stalks immediately when spotted. Snip damaged leaves cleanly at the stem. Sever any emerging flower stalks at soil level at once. Leave all healthy foliage intact, as the broad leaves are essential for producing a sweet, well-developed root, especially after autumn frosts.

As needed throughout the season; low maintenance overall. Parsnip 'Hollow Crown' is an heirloom variety that needs no deliberate pruning. Simply remove damaged, diseased, or yellowing leaves to keep the canopy healthy and reduce canker pressure. Cut any flower stalks immediately if the plant bolts — first-year flowering ruins the root, turning it woody and hollow.

Snip damaged leaves cleanly at the stem. Sever any emerging flower stalks at soil level at once. Leave all healthy foliage intact, as the broad leaves are essential for producing a sweet, well-developed root, especially after autumn frosts.