Dutch Broadleaf

Family: Brassicaceae Herb

Peppery and vividly green, Dutch Broadleaf watercress delivers a crisp, succulent bite with a clean, lively heat that blooms as the leaves sway in cool water.

Its broad, tender foliage stays pleasantly juicy at harvest, making it wonderfully satisfying for fresh use and quick flavoring—ideal for brightening sauces, finishing soups, and adding snap to pickled accents. Grow it for a fast, rewarding 30-day turn that tastes as fresh as a stream’s edge.

Light: Part SunMaturity: 30 DaysHabit: Rosette

Botanical illustration of Dutch Broadleaf

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	May 25th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	30
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	60
Min Soil Temp (°F)	40
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Dutch Broadleaf watercress gives you that fresh-from-the-stream pepper with a juicy crunch, so it shines where it stays crisp—tossed right at the end or folded into cold/near-cold preparations. Its heat is lively, not musty, making it a high-impact finisher alongside lemony fats and rich proteins like salmon or eggs.

Best Uses

shock-and-serve in salads with a light vinaigrette
finish soups and stocks off-heat so the pepper stays sharp
whisk into quick pan sauces or cold herb sauces
chop into relishes and quick pickled accents for snap

Flavor Profile

vivid green peppery bite clean, bright heat that blooms quickly crisp, succulent leaf with juicy snap

Kitchen Pairings

lemon olive oil butter Greek yogurt salmon eggs

Frequently Asked Questions

What’s the most common disease/pest problem for watercress (Nasturtium officinale) and how can I control it?

Watercress commonly suffers from soft rots and leaf spot when it stays too wet and warm, and aphids may also show up on new growth. Remove affected leaves quickly and improve airflow; if rot is spreading, stop overhead watering and keep plants only evenly moist. For aphids, spray a strong jet of water to dislodge them and repeat every 2–3 days for a week, since the crop is harvested quickly.

How often should I water watercress during the main growing phase, and what soil moisture should I maintain?

Keep Nasturtium officinale consistently moist—aim for constantly damp soil rather than drying out between waterings. In warm conditions, that usually means watering every day or every other day, but always check the top 1 inch of soil and water when it starts to feel just slightly dry. Because it’s harvested young (about 30 days), avoid waterlogging; if water pools, improve drainage while maintaining high moisture.

How do I tell when Dutch Broadleaf watercress is ready to harvest?

Harvest when plants are about 6–8 inches tall and have a good number of tender leaves, typically around 30 days from sowing. You’ll know they’re ready when leaves are fully formed but still supple (not tough or bitter) and the stems are slender enough to cut easily. Use scissors to snip leafy tops and leave lower growth to regrow for additional cuttings.