How to Grow Parsley Hamburg

Tiny seedlings emerge slowly (14-21 days) with delicate, finely divided cotyledons. True leaves are fern-like and light green.

Keep soil consistently moist but not waterlogged. Thin seedlings to proper spacing once they have 2-3 true leaves. Parsley seeds germinate slowly; soak seeds overnight or use seed tape to aid germination.

Plant develops robust fern-like foliage (dark green, heavily divided leaves) and begins root development underground. The taproot elongates into the soil.

Maintain consistent moisture and moderate nitrogen. Harvest outer leaves as needed for fresh use. Mulch around plants to retain moisture and regulate soil temperature. Thin to proper spacing if not done earlier.

Underground, the cream-colored taproot swells and lengthens, becoming the primary harvestable part. Foliage continues growing above ground and becomes denser.

Ensure soil remains well-draining to prevent rot and forking. Avoid high nitrogen fertilizer which promotes leaf growth over roots. Continue harvesting leaves. Mulch helps regulate soil conditions.

Roots reach 6-10 inches long and 1-2 inches in diameter (cream or pale yellow colored). Foliage is full and densely leafy, dark green in color.

Roots can be harvested once they reach usable size (around 2-3 months). In cold climates, roots can be left in ground and harvested as needed through fall and early winter. Foliage can be continuously harvested until first hard frost.

In zones 7-9, plants may survive winter, with roots persisting underground and regrowth in spring. Foliage may die back but roots remain harvestable.

In cold zones, harvest all roots before hard freeze. In warmer zones, mulch heavily to protect roots. Mark planting location for spring regrowth in mild climates.